Digital Multimeter, Auto-Ranging, 600V
Aisle View
Tap to enlarge
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.
Features
- Lead Alert protection with LED illumination for lead placement and an easy-to-view backlit display
- Durable meter built to withstand a 6.6-Foot (2 m) drop
- Measures up to 600V AC/DC voltage, 10A AC/DC current and 50 MOhms resistance, continuity, temperature, capacitance, frequency, duty-cycle, and test diodes
- For use in basic and controlled electromagnetic environments such as residential, business and light-industrial locations
- Low battery indicator and easily accessible battery and fuse compartment
- Includes test leads, thermocouple with adapter, batteries and user manual
- Multimeter with automatic ranging true root mean square (TRMS) technology for increased accuracy
- CAT III 600V safety rating
- Lead-Alert; Auto-Range; Min/Max Measurements; Backlight; Auto Power-Off; Data-Hold
Warnings
- Before each use verify meter operation by measuring a known voltage or current.
- Read, understand and follow all instructions, cautions and warnings attached to and /or packed with all test and measurement devices before each use.
- Use personal protective equipment to prevent shock and arc blast injury where hazardous live conductors are exposed.
- Do not use the meter during electrical storms or in wet weather, and do not use the meter or test leads if they appear to be damaged.
Specifications
- Application: Testing and Measuring Voltage
- Depth: 9.3300 in
- Material: ABS, Electrical Components
- Batteries: 2 x AAA
- Ohms: 50MΩ Resistance (50MΩ Resistance)
- Functions: Measures up to 600V AC/DC Voltage, 10A AC/DC Current, 50MΩ Resistance, Temperature, Capacitance, Frequency, Duty-Cycle, Test Diodes, and Continuity
- Standard: CAT III 600V; CE and UKCA Certified
- Weight: 0.9100 lbs
- Accuracy: See Instructions
- Overall Length: 6.41 Inch (16.3 cm) (6.41 Inch) (16.3 cm)
- Current: 10A AC/DC
- Overall Height: 4.5 cm (1.78 Inch) (4.5 cm) (1.78 Inch)
- Included: Multimeter, Test Leads with CAT III/CAT IV Safety Caps, Thermocouple, Instructions, 2 x AAA Batteries
- Frequency: 1 Hz - 50 KHz
- Color: Orange/Black
- Type: Digital Multimeter
- Capacitance: 400 µF
- Drop Protection: 6.6' (2 m)
- Height: 3.8200 in
- Width: 5.0800 in
- Temperature Range: -40° to 1832°F (-40° to 1000°C)
- Display: 4000 Count LCD
- Overall Width: 3.16 Inch (8 cm) (3.16 Inch) (8 cm)
- Voltage: 600V AC/DC
Downloads
Instructions

















































