Klein Tools MM420 Multimeter is an auto-ranging, true root mean square (TRMS) multimeter that measures AC/DC voltage, AC/DC current, and resistance. It can also measure temperature, capacitance, frequency, duty-cycle, and test diodes and continuity. Klein Tools Test and Measurement product line was exclusively designed from the ground up by electricians for electricians. Years of field research, combined with extensive input from electricians across America, inspired the development of meters and electrical testers loaded with innovative, time-saving features.
- Multimeter with automatic ranging true root mean square (TRMS) technology for increased accuracy
- Measures up to 600V AC/DC voltage, 10A AC/DC current and 50 MOhmsresistance, continuity, temperature, capacitance, frequency, duty-cycle, and test diodes
- Lead Alert protection with LED illumination for lead placement and an easy-to-view backlit display
- Low battery indicator and easily accessible battery and fuse compartment
- Durable meter built to withstand a 6.6-Foot (2 m) drop
- Includes test leads, thermocouple with adapter, batteries and user manual
- CAT III 600V safety rating
- For use in basic and controlled electromagnetic environments such as residential, business and light-industrial locations
- Weight: 6.58 LBS
- Width: 5.63 (in)
- Height: 10.25 (in)
- Depth: 17.50 (in)
Ingress Protection
StandardCAT III 600V; CE and UKCA Certified
Special FeaturesLead-Alert; Auto-Range; Min/Max Measurements; Backlight; Auto Power-Off; Data-Hold
Overall Height1.78" (4.5 cm)
IncludedMultimeter, Test Leads with CAT III/CAT IV Safety Caps, Thermocouple, Instructions, 2 x AAA Batteries
Voltage600V AC/DC
Overall Length6.41" (16.2 cm)
Weight8.2 oz (231 g)
Package Quantity
Ohms (Resistance)50M
TypeDigital Multimeter
Temperature Range-40 to 1832F (-40 to 1000C)
Current10A AC/DC
Sub Brand
Frequency1 Hz - 50 KHz
MaterialABS, Electrical Components
FunctionsMeasures up to 600V AC/DC Voltage, 10A AC/DC Current, 50M Resistance, Temperature, Capacitance, Frequency, Duty-Cycle, Test Diodes, and Continuity
ColorOrange/Black
Capacitance400 F
Display4000 Count LCD
ApplicationTesting and Measuring Voltage
Batteries2 x AAA
Overall Width3.16" (8 cm)
Drop Protection6.6' (2 m)
AccuracySee Instructions
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- Weight: 6.58 LBS
- Width: 5.63 (in)
- Height: 10.25 (in)
- Depth: 17.50 (in)
