Skip to content
TOUGH JOBS DONE RIGHT: Serious Tools Up to 50% Off. Shop the Deals >
Northern Tool Equipment Logo TextNorthern Tool Equipment Logo text link to Home.

Free Gift Card on All Orders Over $100 See Details

Free Gift Card Details

$100 Order
$10
gift card
$250 Order
$25
gift card
$500 Order
$50
gift card
$1000 Order
$100
gift card
  • The promotion will be automatically applied on the Shopping Cart page.
  • To qualify for this offer, your order subtotal must equal $100 or more. Excludes gift cards, free item offers, warranties, Advantage memberships, tax and shipping.
  • Free gift cards will be issued in the form of e-gift cards only, not physical gift cards.
  • E-gift cards will be sent to the email address used in your billing address when your order ships or is picked up.
  • Free e-gift cards expire 10/01/26.
  • Promo code not valid on prior purchases or on Honda and STIHL products and cannot be combined with other promotional offers.
  • Valid online and in participating retail stores.
  • Limited-time offer. Subject to change without notice.
Print

Klein Tools, Slim Digital Multimeter, 600V, Temp, Model# MM450

Item# 5901422
"Klein Tools, Slim Digital Multimeter, 600V, Temp, Model# MM450"
Klein Tools, Slim Digital Multimeter, 600V, Temp, Model# MM450

This is a carousel with one large zoomable image and a track of thumbnails on the left. Select any of the thumbnail buttons to change the zoomable image on the right. If a thumbnail is a video or 360 degree image thumbnail, or the last thumbnail in the list, the button will open the product media modal.

Klein Tools, Slim Digital Multimeter, 600V, Temp, Model# MM450

Click or Tap image to Zoom

$69.97

  • Shipping: 

    Factory shipped

  • Store Pickup: 

    Not available - online only
  • 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 M? resistance, continuity, temperature, capacitance, frequency, duty-cycle, and test diodes
  • High visibility, reverse contrast display with automatic backlight adjustment
  • Lead-Alert protection with LEDs for test lead placement
  • Slim profile allows multimeter to conveniently fit into most pockets

  • Prop 65 Warning: See Details

See full description

  • Description

  • Key Specs

  • Reviews

  • Q & A

  • Warranty

  • Compare

Product Summary

Klein Tools MM450 Multimeter is a TRMS auto-ranging slim 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. It features a high visibility, reverse contrast display with an optical sensor to automatically optimize viewing in dark or bright ambient light. The slim profile of the MM450 makes this meter almost the size of a cell phone and it conveniently fits into most pockets. The MM450 features the same quality leads you have come to expect from the Digital Multimeter line at Klein Tools. 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.

What's Included

    (1) Digital Multimeter

Downloads

Safety Data Sheet

Features + Benefits

  • 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 M? resistance, continuity, temperature, capacitance, frequency, duty-cycle, and test diodes
  • High visibility, reverse contrast display with automatic backlight adjustment
  • Lead-Alert protection with LEDs for test lead placement
  • Slim profile allows multimeter to conveniently fit into most pockets
  • Low battery indicator and easily accessible battery and fuse compartment
  • Durable meter built to withstand a 6.6-Foot (2 m) drop
  • Includes carrying pouch, safety rated CAT III 1000V/CAT IV 600V test leads, thermocouple with adapter and 2 x AAA batteries
  • CAT III 600V safety rating
  • For use in basic and controlled electromagnetic environments such as residential, business and light-industrial locations

Key Specs

AttributeSpecification

item#

5901422

Brand

Klein Tools

Manufacturer's Warranty

12 years limited

Ship Weight

1.14 LB

Display Type

LCD

Circuit or Voltage Tester

Voltage Tester

Max. DC Volts

600

Max. AC Volts

600

Max. AC Amps

10

Max. DC Amps

10

Max. Resistance

50000000

Battery Size

AAA

Low Battery Indicator

Yes

Battery Included

Yes

Capacitance Range

400 µF
AttributeSpecification

Polarity Indicator

No

Frequency

50 KHz

Measures

600 VAC/DC Voltage, 10A AC/DC Current, 50 M? Resistance, Temperature, Capacitance, Frequency, Duty-Cycle, Test Diodes, Continuity

Max. Temperature

1,832 °F

Case Included

Yes

Auto On/Off

Yes

Water Resistant

No

Power Source

Battery

UL Listed

No

Calibration Certificate Included

No

Max. Ohms

50,000,000

Material

ABS

Includes

Multimeter, Carrying Pouch, Test Leads, Thermocouple with Adapter, Batteries

Product Weight

0.5750 lb

Dimensions L x W x H (in.)

6.5 x 3.15 x 1.09 in

Reviews

Questions & Answers

2 Reviews This action will navigate to reviews.

Questions

Warranty

Manufacturer's Warranty

12 years limited

Recently Viewed Items

This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.

Klein Tools, Slim Digital Multimeter, 600V, Temp, Model# MM450
4.5 out of 5 stars. 2 reviews

Klein Tools, Slim Digital Multimeter, 600V, Temp, Model# MM450

Item # 5901422

$69.97