The Klein Tools MM400 is a compact, auto-ranging digital multimeter designed for basic and controlled electromagnetic environments. It measures AC/DC voltage to 600V, AC/DC current to 10A, and resistance up to 40 MOhms, and also tests capacitance, frequency, duty-cycle, diodes, continuity, and temperature. The MM400 features a digital display, CAT III 600V safety rating, low battery indicator, and an easily accessible battery compartment. Built to withstand a 3.3-foot (1 m) drop, it includes test leads, a thermocouple with adapter, batteries, a protective case, and a user manual, and is backed by a 1-year manufacturer warranty.
Measures up to 600V AC/DC voltage, 10A AC/DC current, and 40 MOhms resistance.
Tests temperature, capacitance, frequency, duty-cycle, diodes, and continuity for comprehensive diagnostics.
CAT III 600V safety rating for use in many commercial and residential circuits.
Rugged design withstands a 3.3-foot (1 m) drop and daily job-site wear.
Auto-ranging digital display with low battery indicator and easy-access battery compartment.
Includes test leads, thermocouple with adapter, batteries, and user manual for immediate use.
Intended for basic and controlled electromagnetic environments such as residential, business, and light-industrial locations.
Compatible with alkaline batteries and covered by a 1-year manufacturer warranty.
Compact orange housing with included protective case for convenient storage and transport.