The IDEAL 61-737 Clamp Meter is a CAT III auto ranging true root mean square (TRMS) digital clamp meter that measures up to 400 Amps AC via the clamp head. It measures up to 600 VAC and DC, frequency, resistance, continuity, capacitance and diodes via test-leads (included) and measures temperature (°F/°C) 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. The meter has a hanging strap mount (compatible with all other IDEAL meters with this feature) that allows for a hanging strap (sold separately) 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. The meter 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.