The EX310 from FLIR Extech is a manual-ranging handheld digital multimeter (DMM) with a 4.0-digit LCD, measuring voltage, current and resistance, with battery test, continuity and diode test functions, plus auto off and hold features, and NCV (non-contact voltage) detection.
The EX310-NIST from FLIR Extech is a manual handheld digital multimeter with a 4.0-digit LCD, measuring voltage, current and resistance, with battery test, continuity, diode test, auto off and hold functions.