Digital Multimeter, Auto-Ranging, 600V – Electrical Testing Equipment The Klein Tools MM400 Digital Multimeter is an auto-ranging device designed for precise measurement of AC/DC voltage, AC/DC current, and resistance. Ideal for electrical distributors, lighting solutions providers, wire and cable specialists, and switchgear suppliers, this multimeter also measures temperature, capacitance, frequency, duty-cycle, and performs diode and continuity tests. Engineered from the ground up by electricians, it incorporates innovative features to enhance efficiency in field testing and electrical troubleshooting. Specifications Manufacturer: Klein Tools Model Number: MM400 Measurement Range: Up to 600V AC/DC Display Type: LCD, 4000 count Dimensions: 6.04" (Length) x 3.07" (Width) x 1.78" (Height) Weight: 0.93 lbs (approximately 8.1 oz or 230 g) Frequency Range: 1 Hz (auto-ranging) Safety Rating: CAT III 600V, Class 2, Double insulation Operating Temperature: 32°F to 104°F (0°C to 40°C) Storage Temperature: 14°F to 140°F (-10°C to 60°C) Calibration: Accurate for one year Standards Compliance: UL STD 61010-1, 61010-2-030, 61010-2-033; CSA STD C22.2 #61010-1, 61010-2-030, 61010-2-033; IEC EN 61010-1, 61010-2-030, 61010-2-033, 61326-1 Features Auto-ranging capability for voltage, current, and resistance measurements Measures AC/DC voltage and current, resistance, temperature, capacitance, frequency, and duty-cycle Tests diodes and continuity with audible signal Backlit LCD display for enhanced visibility in low-light environments Data hold, min/max recording, and manual range selection functions Robust construction designed for field use with drop protection up to 3.3 ft (1 m) Ergonomic design with function selector switch and easy-to-use function buttons Compatible with K-type thermocouple for temperature measurement Meets electromagnetic environment requirements for residential, commercial, and light industrial applications Downloads & Links Instructions MSDS Spec Sheet
