The IDEAL Electrical 61737 400A AC TRMS Clamp Meter measures up to 400 Amps AC via the clamp head. It measures up to 600V AC and DC, frequency, resistance, continuity, capacitance, and diodes via test-leads (included) and measures temperature (⁰F/⁰C) via a K-Type thermocouple (included). It's capable of detecting the presence of voltage between 40V to 600V via a non-contact sensor in the right tip of the clamp. The large display can be backlit when working in poor or zero lighting conditions. The unit uses an illuminated red LED in the center of the meter and emits audible tones to notify when voltage is above 30 volts, when continuity is detected and when the NCV senses voltage within its set range. The clamp head has a built-in probe tip holder on the backside of the right clamp to allow measurements holding the clamp in one hand and the second lead in the other hand. 61-737 has a hanging strap mount (compatible with all other IDEAL Electrical meters with this feature) that allows for a hanging strap (not included) to be attached to the meter so it can be hung from a nail, screw or magnetic surface. This meter features HOLD, MIN/MAX, Relative, Range, and selectable Auto Power Off functions. 61-737 comes with 3 1.5V AAA Batteries and an easy open, fully accessible storage pouch with a belt loop that allows for meter, probe and thermocouple storage.