{"product_id":"greenlee-cm-660-ac-true-rms-clamp-meter","title":"Greenlee CM-660 AC True RMS Clamp Meter","description":"\u003cdiv style=\"max-width:1120px;margin:0 auto;color:#374151;font-family:inherit;line-height:1.6;\"\u003e\n\u003csection style=\"padding:22px 24px;border:1px solid #E5E7EB;border-top:5px solid #DC0224;border-radius:14px;background:linear-gradient(135deg,#FFFFFF 0%,#F7F7F7 100%);box-shadow:0 4px 14px rgba(17,24,39,0.07);\"\u003e\u003cp style=\"margin:0 0 8px;color:#DC0224;font-size:0.78rem;line-height:1.3;font-weight:800;letter-spacing:0.08em;text-transform:uppercase;\"\u003eExcel Lighting \u0026amp; Electrical Supply Co.\u003c\/p\u003e\n\u003ch2 style=\"margin:0 0 10px;color:#1F2937;font-size:1.35rem;line-height:1.3;font-weight:750;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp style=\"margin:0;color:#4B5563;font-size:1rem;line-height:1.7;\"\u003eThe Greenlee CM-660 is an AC True-RMS clamp meter with 60 A and 600 A AC current ranges, 600 V AC\/DC voltage measurement, and a 30 mm jaw opening. It also measures resistance and frequency, tests continuity and diodes, and provides AmpTip™ current measurement and non-contact EF detection, with CAT III 600 V and CAT IV 300 V ratings.\u003c\/p\u003e\u003c\/section\u003e\u003csection style=\"margin:28px 0 0;\"\u003e\u003ch2 style=\"margin:0 0 14px;color:#1F2937;font-size:1.25rem;line-height:1.3;font-weight:700;\"\u003eKey Features\u003c\/h2\u003e\n\u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;\"\u003e\n\u003cdiv style=\"background:#FFFFFF;border:1px solid #E5E7EB;border-radius:12px;padding:18px;box-shadow:0 2px 8px rgba(17,24,39,0.06);\"\u003e\n\u003ch3 style=\"margin:0 0 8px;color:#1F2937;font-size:1rem;line-height:1.35;font-weight:700;\"\u003e60 A and 600 A AC Current Ranges\u003c\/h3\u003e\n\u003cp style=\"margin:0;color:#4B5563;font-size:0.95rem;line-height:1.6;\"\u003eProvides 60 A and 600 A AC clamp-current ranges with True-RMS measurement; AmpTip™ provides increased accuracy on small wires carrying 60 A or less.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FFFFFF;border:1px solid #E5E7EB;border-radius:12px;padding:18px;box-shadow:0 2px 8px rgba(17,24,39,0.06);\"\u003e\n\u003ch3 style=\"margin:0 0 8px;color:#1F2937;font-size:1rem;line-height:1.35;font-weight:700;\"\u003e600 V AC\/DC Voltage Measurement\u003c\/h3\u003e\n\u003cp style=\"margin:0;color:#4B5563;font-size:0.95rem;line-height:1.6;\"\u003eMeasures AC and DC voltage on a 600 V range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FFFFFF;border:1px solid #E5E7EB;border-radius:12px;padding:18px;box-shadow:0 2px 8px rgba(17,24,39,0.06);\"\u003e\n\u003ch3 style=\"margin:0 0 8px;color:#1F2937;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eCAT III 600 V; CAT IV 300 V\u003c\/h3\u003e\n\u003cp style=\"margin:0;color:#4B5563;font-size:0.95rem;line-height:1.6;\"\u003eRated CAT III 600 V and CAT IV 300 V for AC and DC.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FFFFFF;border:1px solid #E5E7EB;border-radius:12px;padding:18px;box-shadow:0 2px 8px rgba(17,24,39,0.06);\"\u003e\n\u003ch3 style=\"margin:0 0 8px;color:#1F2937;font-size:1rem;line-height:1.35;font-weight:700;\"\u003e30 mm Maximum Jaw Opening\u003c\/h3\u003e\n\u003cp style=\"margin:0;color:#4B5563;font-size:0.95rem;line-height:1.6;\"\u003eMaximum jaw opening and conductor diameter are 30 mm (1.18 in).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FFFFFF;border:1px solid #E5E7EB;border-radius:12px;padding:18px;box-shadow:0 2px 8px rgba(17,24,39,0.06);\"\u003e\n\u003ch3 style=\"margin:0 0 8px;color:#1F2937;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eResistance, Frequency, Continuity \u0026amp; Diode Testing\u003c\/h3\u003e\n\u003cp style=\"margin:0;color:#4B5563;font-size:0.95rem;line-height:1.6;\"\u003eMeasures resistance and frequency, and tests continuity and diodes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FFFFFF;border:1px solid #E5E7EB;border-radius:12px;padding:18px;box-shadow:0 2px 8px rgba(17,24,39,0.06);\"\u003e\n\u003ch3 style=\"margin:0 0 8px;color:#1F2937;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eNon-contact AC Voltage Detection\u003c\/h3\u003e\n\u003cp style=\"margin:0;color:#4B5563;font-size:0.95rem;line-height:1.6;\"\u003eA dedicated switch position provides non-contact EF detection in listed 10–600 V bands at 50–60 Hz.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"margin:28px 0 0;\"\u003e\u003ch2 style=\"margin:0 0 14px;color:#1F2937;font-size:1.25rem;line-height:1.3;font-weight:700;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"margin:0 0 18px;border:1px solid #E5E7EB;border-radius:12px;overflow:hidden;background:#FFFFFF;\"\u003e\n\u003ch3 style=\"margin:0;padding:12px 14px;background:#757575;color:#FFFFFF;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;min-width:420px;border-collapse:collapse;border-spacing:0;font-family:inherit;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eBundle\/Single\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eSingle Product\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eHeight (in.)\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e8.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eWidth (in.)\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eLength (in.)\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e1.4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eWeight (lb.)\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e0.408 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"margin:28px 0 0;padding:20px;border:1px solid #E5E7EB;border-left:4px solid #DC0224;border-radius:12px;background:#F9FAFB;\"\u003e\u003ch2 style=\"margin:0 0 12px;color:#1F2937;font-size:1.2rem;line-height:1.3;font-weight:700;\"\u003ePractical Applications\u003c\/h2\u003e\n\u003cul style=\"margin:0;padding-left:20px;color:#4B5563;font-size:0.95rem;line-height:1.55;\"\u003e\n\u003cli style=\"margin:0 0 8px;padding-left:2px;\"\u003eAC current measurements on electrical conductors\u003c\/li\u003e\n\u003cli style=\"margin:0 0 8px;padding-left:2px;\"\u003eAC\/DC voltage checks in electrical systems\u003c\/li\u003e\n\u003cli style=\"margin:0 0 8px;padding-left:2px;\"\u003eCircuit resistance, continuity, and diode checks\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\n\u003c\/div\u003e\u003c!-- registry-additional-specifications:start --\u003e\u003csection style=\"margin:28px 0 0;\"\u003e\u003ch2 style=\"margin:0 0 14px;color:#1F2937;font-size:1.25rem;line-height:1.3;font-weight:700;\"\u003eAdditional specifications\u003c\/h2\u003e\n\u003cdiv style=\"margin:0 0 18px;border:1px solid #E5E7EB;border-radius:12px;overflow:hidden;background:#FFFFFF;\"\u003e\n\u003ch3 style=\"margin:0;padding:12px 14px;background:#757575;color:#FFFFFF;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eAdditional specifications · Measurement\u003c\/h3\u003e\n\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;min-width:420px;border-collapse:collapse;border-spacing:0;font-family:inherit;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eMaximum jaw opening \/ conductor diameter\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eMaximum jaw opening\/conductor diameter: 30 mm.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eNon-contact EF detection\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eCM-660 has a dedicated switch position. At 50–60 Hz, listed non-contact EF detection bands span 10–600 V.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eDiode test\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e2.000 V measuring range; accuracy ±(1.5% + 0.005 V); typical test current 0.3 mA; typical open-circuit voltage \u0026lt;3.5 VDC.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eContinuity threshold and response\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eTone threshold between 10 Ω and 250 Ω; response time approximately 32 ms.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eMeasurement functions and sensing\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eTrue-RMS; measures AC\/DC voltage, AC current, AC AmpTip™, frequency, non-contact EF and resistance; tests diodes and continuity.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 18px;border:1px solid #E5E7EB;border-radius:12px;overflow:hidden;background:#FFFFFF;\"\u003e\n\u003ch3 style=\"margin:0;padding:12px 14px;background:#757575;color:#FFFFFF;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eAdditional specifications · Electrical\u003c\/h3\u003e\n\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;min-width:420px;border-collapse:collapse;border-spacing:0;font-family:inherit;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eAC voltage range and accuracy\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e600.0 V range; accuracy ±(1.0% + 0.5 V) at 50–60 Hz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eFrequency measurement range and sensitivity\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eVoltage input: 5.00–999.9 Hz with 50 V sine-RMS sensitivity; current input: 50.00–400.0 Hz with 40 A sensitivity.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eVoltage input impedance\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eVoltage input impedance: 10 MΩ, 100 pF nominal.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eConductor-position accuracy allowance\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eAdd 2.0% to the accuracy when the conductor is not centered in the jaws.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eAC clamp-current accuracy (60 A range)\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eOn the 60.00 A range: 0.00–0.19 A accuracy unspecified; 0.20–5.99 A ±(1.8% + 0.15 A) at 50–100 Hz and ±(2.0% + 0.15 A) at 100–400 Hz; 6.00–60.00 A ±(1.8% + 0.05 A) and ±(2.0% + 0.05 A), respectively.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eAmpTip AC current range\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e60.00 A range.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eAC clamp-current range and accuracy (600 A range)\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e60.0–600.0 A; accuracy ±(1.8% + 0.5 A) at 50–100 Hz and ±(2.0% + 0.5 A) at 100–400 Hz. Accuracy is specified at 23 °C ± 5 °C.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eDC voltage range and accuracy\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e600.0 V range; accuracy ±(1.0% + 0.5 V).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eResistance ranges and accuracy\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e600.0 Ω: ±(1.0% + 0.5 Ω); 6.000 kΩ: ±(1.0% + 0.005 kΩ); 60.00 kΩ: ±(1.0% + 0.05 kΩ). Open-circuit voltage: 1.0 VDC.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 18px;border:1px solid #E5E7EB;border-radius:12px;overflow:hidden;background:#FFFFFF;\"\u003e\n\u003ch3 style=\"margin:0;padding:12px 14px;background:#757575;color:#FFFFFF;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eAdditional specifications · Compliance\u003c\/h3\u003e\n\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;min-width:420px;border-collapse:collapse;border-spacing:0;font-family:inherit;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eSafety design standards\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eDouble insulation per UL\/IEC\/EN 61010-1 Ed. 3, IEC\/EN 61010-2-033 Ed. 1, CAN\/CSA C22.2 No. 61010-1 Ed. 3, IEC\/EN 61010-2-032 Ed. 2, and IEC\/EN 61010-031 Ed. 1.1.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eEMC compliance\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eMeets EN61326-1:2006.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 18px;border:1px solid #E5E7EB;border-radius:12px;overflow:hidden;background:#FFFFFF;\"\u003e\n\u003ch3 style=\"margin:0;padding:12px 14px;background:#757575;color:#FFFFFF;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eAdditional specifications · Safety\u003c\/h3\u003e\n\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;min-width:420px;border-collapse:collapse;border-spacing:0;font-family:inherit;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eMaximum clamped-conductor frequency\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eDo not clamp conductors carrying frequencies greater than 400 Hz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eMeasurement category rating\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eCAT III 600 V and CAT IV 300 V AC and DC.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 18px;border:1px solid #E5E7EB;border-radius:12px;overflow:hidden;background:#FFFFFF;\"\u003e\n\u003ch3 style=\"margin:0;padding:12px 14px;background:#757575;color:#FFFFFF;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eAdditional specifications · Power\u003c\/h3\u003e\n\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;min-width:420px;border-collapse:collapse;border-spacing:0;font-family:inherit;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003ePower supply and typical current consumption\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eTwo 1.5 V AAA batteries (NEDA 24A or IEC LR03); CM-660 typical current consumption 4.3 mA.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eAutomatic power-off\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eAutomatic power-off after approximately 32 minutes of inactivity; typical APO consumption 5 μA.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 18px;border:1px solid #E5E7EB;border-radius:12px;overflow:hidden;background:#FFFFFF;\"\u003e\n\u003ch3 style=\"margin:0;padding:12px 14px;background:#757575;color:#FFFFFF;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eAdditional specifications · Display\u003c\/h3\u003e\n\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;min-width:420px;border-collapse:collapse;border-spacing:0;font-family:inherit;\"\u003e\u003ctbody\u003e\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eDisplay and update rate\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eLCD, 3-5\/6 digits and 6000 counts; automatic polarity; nominal update rate 5 per second.\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 18px;border:1px solid #E5E7EB;border-radius:12px;overflow:hidden;background:#FFFFFF;\"\u003e\n\u003ch3 style=\"margin:0;padding:12px 14px;background:#757575;color:#FFFFFF;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eAdditional specifications · Protection\u003c\/h3\u003e\n\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;min-width:420px;border-collapse:collapse;border-spacing:0;font-family:inherit;\"\u003e\u003ctbody\u003e\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eTransient protection\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e6.0 kV (1.2\/50 μs surge).\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 18px;border:1px solid #E5E7EB;border-radius:12px;overflow:hidden;background:#FFFFFF;\"\u003e\n\u003ch3 style=\"margin:0;padding:12px 14px;background:#757575;color:#FFFFFF;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eAdditional specifications · Operating conditions\u003c\/h3\u003e\n\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;min-width:420px;border-collapse:collapse;border-spacing:0;font-family:inherit;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eStorage conditions\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e−20 to 60 °C; relative humidity \u0026lt;80%, with batteries removed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eOperating environment\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e0–31 °C at 0–80% RH; 31–40 °C with RH decreasing linearly from 80% to 50%; pollution degree 2; indoor use only; operating altitude below 2000 m.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003c!-- registry-additional-specifications:end --\u003e","brand":"Greenlee","offers":[{"title":"Default Title","offer_id":68229664768111,"sku":"CM-660","price":175.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8970\/4303\/files\/excel-gtin-783310022114-9b85227f.jpg?v=1794009933","url":"https:\/\/excel-lighting-electrical-supply-co.myshopify.com\/products\/greenlee-cm-660-ac-true-rms-clamp-meter","provider":"Excel Lighting \u0026 Electrical Supply, Co.","version":"1.0","type":"link"}