Flir cm78 1000a true rms digital clamp meter ir thermometer and worklight flir cm78 this 1000a industrial grade true rms clamp meter is a safe and capable combination tool that provides excellent functionality and ease of use the meter will measure ac dc high current and high voltage measurements as well as resistance capacitance and frequqency and there is an integrated ir thermometer that gives fast non contact temperature measurement on panels conduits and motors br br the mete