The Klein Tools MM200 Auto-Ranging Multimeter is a compact and versatile digital multimeter designed for both professionals and DIY users. It automatically selects the appropriate measurement range for AC/DC voltage (up to 600V), current (up to 10A), resistance (up to 40MΩ), capacitance (up to 200µF), frequency (up to 1MHz), and temperature (from -4°F to 1832°F). This makes it ideal for diagnosing electrical issues in residential, commercial, and HVAC systems. The MM200 also features diode testing, audible continuity checks with a loud buzzer, and a data hold function to freeze readings for later review. Its backlit 4000-count LCD display ensures visibility in low-light conditions, and the soft-touch buttons offer a comfortable user experience.
Built for durability, the MM200 includes a rugged protective boot to withstand drops and rough handling on job sites. It’s rated CAT III 600V for safety and includes a low battery indicator and auto power-off feature to conserve energy. The multimeter also has lead storage and a µA setting for measuring small currents, making it suitable for sensitive electronics work. Though the MM200 is no longer in production, it remains a trusted tool for accurate and efficient electrical measurements. Optional accessories like replacement fuse kits and test leads are still available to support continued use.
