Klein MM420 600V AC/DC Auto-Ranging Digital Multimeter

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Adams SKU: KLE-MM420
Manufacturer Part#: Klein Tools MM420 Categories: ,
Klein Tools Manufactures of high quality hand tools

600V AC/DC Auto-Ranging Digital Multimeter

The Klein MM420 600V AC/DC Auto-Ranging Digital Multimeter is a versatile, high-performance tool designed to meet the needs of professionals in various fields. Equipped with TRMS (True Root Mean Square) technology, this multimeter delivers precise and reliable measurements, even in environments where voltage fluctuations are common. It can measure AC/DC voltage, current, resistance, temperature, capacitance, frequency, duty cycle, and also test diodes and continuity. Built for durability, the MM420 can withstand drops up to 6.6 feet, making it ideal for tough job sites. With a user-friendly design that includes Lead Alert protection, a backlit display, and easily accessible battery and fuse compartments, it’s the go-to tool for electricians, HVAC technicians, and other professionals who need accuracy and efficiency.

Klein 600V AC/DC Auto-Ranging Digital Multimeter At a Glance

  • TRMS Auto-Ranging Technology: Automatically adjusts for fluctuating voltage conditions, ensuring accurate and reliable readings.
  • Measures up to 600V AC/DC: Capable of handling high-voltage tasks in residential, commercial, and industrial applications.
  • Lead Alert Protection: LED illumination alerts the user to correct lead placement, reducing potential errors during use.
  • Durable Design: Built to endure drops of up to 6.6 feet, making it ideal for harsh jobsite conditions.
  • Backlit Display: Easy-to-read in low-light environments, ensuring visibility in dim or enclosed spaces.
  • Multi-functional: Measures AC/DC voltage, current, resistance, temperature, capacitance, frequency, duty cycle, and tests diodes and continuity.

Markets

  • Electricians: Perfect for electrical troubleshooting and system maintenance with accurate, safe measurements.
  • HVAC Technicians: Provides temperature and electrical measurements for diagnosing heating and cooling systems.
  • Automotive Repair: Useful for testing diodes, continuity, and other vehicle electrical systems.
  • Educational Institutions: Provides a reliable tool for teaching electrical theory and hands-on troubleshooting.
  • DIY Enthusiasts: A professional-grade tool for homeowners working on electrical projects and repairs.
  • Maintenance Workers: Ideal for monitoring and repairing electrical systems in commercial and light industrial facilities.
  • Municipal Workers: Ensures safe and accurate voltage and current measurements for maintaining public infrastructure.

The Klein MM420 Multimeter offers wide-ranging benefits for multiple markets. Electricians will find it indispensable for troubleshooting electrical systems, thanks to its auto-ranging feature that automatically selects the appropriate measurement range, reducing time spent on manual adjustments. HVAC professionals can leverage its temperature measurement capability, which is critical for diagnosing system performance. Automotive technicians will appreciate the multimeter’s ability to test electrical components like diodes and continuity in vehicles. For educational purposes, it provides an easy-to-use, professional-grade tool that aids in teaching complex electrical concepts. Homeowners and DIYers looking for a high-quality multimeter for home projects will also benefit from its accuracy and durable construction, while maintenance and municipal workers can rely on it for safely monitoring and repairing public infrastructure.

Klein MM420 600V AC/DC Auto-Ranging Digital Multimeter 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 MOhms resistance, 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

Klein MM420 600V AC/DC Auto-Ranging Digital Multimeter Specifications

  • Type: Digital Multimeter
  • Application: Testing and measuring voltage
  • Special Features: Lead Alert, Auto-Range, Min/Max measurements, Backlight, Auto Power-Off, Data Hold
  • Material: ABS, electrical components
  • Batteries: 2 x AAA
  • Drop Protection: 6.6 ft (2 m)
  • Display: 4000 Count LCD
  • Voltage: 600V AC/DC
  • Current: 10A AC/DC
  • Resistance: 50MΩ
  • Capacitance: 400 µF
  • Frequency: 1 Hz – 50 KHz
  • Temperature Range: -40° to 1832°F (-40° to 1000°C)
  • Dimensions: 6.41” (16.2 cm) length, 1.78” (4.5 cm) height, 3.16” (8 cm) width
  • Weight: 8.2 oz (231 g)
  • Safety Rating: CAT III 600V

Klein MM420 600V AC/DC Auto-Ranging Digital Multimeter Includes

  • (1) Digital Multimeter
  • (1) Test Leads with CAT III/CAT IV Safety Caps
  • (1) Thermocouple
  • (2) AAA Batteries
  • Instruction Manual

Klein MM420 600V AC/DC Auto-Ranging Digital Multimeter Warranty

  • Klein Tools 2-Year Limited Warranty

Why Professionals Choose the Klein 600V AC/DC Auto-Ranging Digital Multimeter

The Klein MM420 Auto-Ranging Digital Multimeter is trusted by professionals for its accurate, reliable performance across various applications. Whether you’re diagnosing an HVAC system, testing automotive electrical components, or troubleshooting home wiring, this multimeter delivers the precision you need with TRMS technology. Its rugged construction ensures it can handle the toughest job sites, while the auto-ranging function simplifies operation by automatically adjusting to the correct measurement range. This multimeter is the go-to tool for electricians, HVAC specialists, and DIY users who demand accuracy, safety, and efficiency in their electrical testing tasks.

Additional information

Weight 1.25 lbs
Dimensions 6.41 × 3.13 × 1.83 in

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