1、[Multi Functional] This clamp meter not only measures current but also performs voltage and resistor measurement, continuity checks, providing versatile functionality in one tool. 2、[Wide Jaw Design] Featuring a large jaw and is easy to clamp, this meter can grip adjacent wires of various circuit breakers with ease, enhancing efficiency in electrical work. 3、[True RMS Measurement] This clamp meter calculates and displays waveforms with harmonic components based on the RMS, accurately reads distorted waveforms from devices like variable frequency drives or switch power supplies. 4、[Additional Features] Featuring features such as beeping sound, data hold, and automatic power saving, this clamp meter offers added convenience and efficiency during use. 5、[Long Lasting] Able to withstand temperatures ranging from -25 to 65℃ and built to be impact resistant, this clamp meter can be used in harsh environments, making it suitable for a wide range of applications. Item Type: AC Clamp Meter Material: ABS AC Current: 42.00A-2000A, 3 speed range (40Hz-1kHz, true RMS), basic accuracy 45Hz-66Hz: 1.5% rdg. ±5 dgt. DC Voltage: 420.0 mV-600 V, 5 speed range, basic accuracy: ±1.0% rdg. ±3 dgt. (when the range is 4.2V) AC Voltage: 4.200V-600V, 4 speed range (45-500Hz, true RMS), basic accuracy 45Hz-66Hz: ±1.8% rdg. ±7 dgt. (when the range is 4.2V) Peak Factor: 2.5 within 2500 points, linearly decreases to 1.5 or less at 4200 points, but below 1.5 at ACA2000A range Resistor: 420.0 Ω-42.00 MΩ, 6 speed range, basic accuracy: ±2% rdg. ±4 dgt. (when the range is 420Ω) Other Functions: Continuity (50Ω ±40Ω) below, beeping sound, data retention, automatic power saving, anti fall: able to withstand a drop of 1m from concrete Display: LCD, maximum 4199 dgt., display update rate 400ms Power: CR2032 x 1 (without battery), continuous use time: 70h Measurable Conductor Diameter: Below 46 mm Clamp Size (WxD): Approx. 65x13mm / 2.56x0.51in 1 x AC Clamp Meter 1 x Test Cable 1 x Storage Box