The IDEAL 61-747 TightSight® Clamp Meter is a CAT III 600 V rated auto ranging true root mean square (TRMS) digital clamp meter that measures up to 400 Amps AC and DC current 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 (°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 patented TightSight LCD Display, located on the bottom of the unit, enhances safety and productivity by displaying a secondary reading at the end of the meter, eliminating the need to bend or twist conductors or place you head near the panel in order to see the main meter display. Both displays can be backlit, and a built-in flashlight can be illuminated 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. An industrial grade over molding enhances grip and drop protection. This meter features HOLD, MIN/MAX, Relative, Zero, 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.