The Klein Tools MM200 is an auto-ranging digital multimeter rated CAT III 600V and designed for general electrical work. It measures AC/DC voltage up to 600V, AC/DC current up to 10A, resistance to 40 MΩ, capacitance, frequency, and temperature. The 4000-count LCD display is backlit for low-light environments. Features include data hold, range hold, audible continuity, diode test, microamp setting, and a protective rubber boot with integrated lead storage. Auto power-off extends battery life. This product has been discontinued. Backed by Klein Tools' 1-year limited warranty.
Is the MM200 still available?
No — the MM200 has been discontinued. The MM420 is the current auto-ranging replacement with True RMS added.
What was the MM200?
An auto-ranging average-sensing multimeter rated for 600V AC/DC — a step up from manual-ranging meters in convenience, but without True RMS accuracy.
What replaced it?
The MM420 (True RMS, auto-ranging, 600V) is the current equivalent — it adds True RMS measurement for accurate readings on non-sinusoidal loads.
# Klein Tools® MM200 Auto-Ranging Multimeter **Model:** `MM200` **Brand:** Klein Tools **Category:** Multimeter > The Klein Tools MM200 is an auto-ranging digital multimeter rated CAT III 600V and designed for general electrical work. It measures AC/DC voltage up to 600V, AC/DC current up to 10A, resistance to 40 MΩ, capacitance, frequency, and temperature. The 4000-count LCD display is backlit for low-light environments. Features include data hold, range hold, audible continuity, diode test, microamp setting, and a protective rubber boot with integrated lead storage. Auto power-off extends battery life. This product has been discontinued. Backed by Klein Tools' 1-year limited warranty. ## Specifications | Attribute | Value | |---|---| | Product Type | Digital Multimeter | | True Rms | No | | Auto Ranging | Yes | | Voltage Range Ac | 600V AC | | Voltage Range Dc | 600V DC | | Current Range Ac | 10A AC | | Current Range Dc | 10A DC | | Resistance Range | 40 MΩ | | Capacitance Range | 200 µF | | Frequency Range | 1 MHz | | Temperature Range | -4–1832°F | | Low Impedance Loz | No | | Nist Calibrated | No | | Display Type | LCD | | Display Count | 4,000 | | Cat Rating | CAT III 600V | | Battery Type | 9V | | Overall Length In | 5.75 | | Barcode (UPC) | 092644691515 | | Warranty | 1-year limited | ## What's Included - Test leads - Battery Source: https://www.jaspecs.com/klein-tools/multimeter/mm200-klein-tools-auto-ranging-multimeter/