Engineered to exceed the expectations of the professional electrician the DSA1020TRMS is a 10 functional 27 range digital snap-around clamp meter with precise true RMS circuitry and a 1000 AMP non-contact current reading. Designed with integrated non-contact voltage detection and a min/max data hold capable function which allows you to hold either minimum reading or maximum reading on the display. This auto ranging unit features 10 functions and 27 ranges measuring AC/DC V up to 600 V, non-contact AC voltage 80-600V and AC/DC current up to 1000A. Able to test continuity, resistance, true RMS, frequency, and temperature (probe type) this unit features a backlit LCD display ideal for low light applications and an auto power of functionality to save battery life. Unit ships with a convenient carrying case and 2 AAA batteries (required for use).