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Klein Tools Dual-range LCD Electrical Tester Kit

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Meet the Klein Tools Dual-range LCD Electrical Tester Kit — a compact, reliable tool designed for fast, accurate electrical checks. With automatic ranging and a bright LCD readout,…

Klein Tools MPN RT250KIT
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Typical Store Price i
Typical store price: low $37.99, average $44.99
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About Product Overview

Meet the Klein Tools Dual-range LCD Electrical Tester Kit — a compact, reliable tool designed for fast, accurate electrical checks. With automatic ranging and a bright LCD readout, it helps you read measurements at a glance, while an audible alert confirms results in busy environments.

Powered by AAA batteries (included), this tester ships in a durable clamshell package and is ready to go right out of the box. The built-in automatic delay shutoff protects your battery life when the unit is idle, so you can rely on it for longer on the job site. The distinctive black and orange housing keeps the tool easy to spot in a crowded toolbox or on a busy workbench.

Key features

  • Dual-range LCD display: See measurements on two scales at once for faster interpretation and reduced switching errors.
  • Automatic ranging: The tester determines the correct range automatically, saving time and minimizing user error.
  • Audible alert: Beeps confirm readings, so you don’t have to keep looking at the display while you’re working.
  • AAA battery powered: Quick, accessible power with batteries included for immediate use.
  • Automatic delay shutoff: Conserves battery life by powering down after inactivity.
  • Durable, high-visibility design: Black and orange housing stands out in tool bags and on the job site.
  • Packaging: Shipped in a clamshell for secure storage and easy display.
  • Warranty: Backed by Klein Tools with a 1-year warranty.

Who is this for?

The Klein Tools Dual-range LCD Electrical Tester Kit is ideal for professional electricians, electrical apprentices, maintenance technicians, and DIY enthusiasts who need quick, dependable readings for outlets, switches, panels, and wiring tasks. It’s designed for handheld, on-the-spot checks where speed and accuracy matter most.

Practical use cases

  • Quickly verify presence of voltage at outlets and switches without swapping probes or tools.
  • Check circuit status during panel work and wiring installations.
  • Use the dual-range LCD readout to distinguish between low and high-range readings at a glance.
  • Keep working in noisy environments with audible confirmation of readings.

Why choose this over other testers?

The Dual-range LCD Electrical Tester Kit combines automatic ranging with a clear, two-range LCD display and audible alerts, reducing guesswork and speeding up job-site diagnosis. The AAA battery setup and automatic delay shutoff keep you productive longer, while Klein Tools’ engineering for durability means fewer replacements and less downtime.

Ready to simplify electrical checks and improve accuracy? Add the Klein Tools Dual-range LCD Electrical Tester Kit to your toolkit and experience faster, clearer readings on every job.

The Details Specifications

Brand Klein Tools
SKU 3018122
UPC 092644693502
Unit 0
Case Pack Quantity 4 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 3 × 5 × 9
Weight 1 lbs
Cubic Feet 0.11781 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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