Klein Tools

Model # ET50

Internet # 202498056

Store SKU # 999778

Voltage Tester

$21.77 /each

Frequently Bought Together

Product Overview

The Klein Tools Voltage Tester tests AC and DC voltages from 120 - 600 volts. This tester was designed by electricians, for electricians and features an LED display and an automatic shutoff to help preserve battery life. This tester has low impedance to limit false readings and comes with 3 AAA alkaline batteries.

California residents: see  Proposition 65 information

  • Solid state design for safety
  • AC/DC voltage range measures 120 - 600 volts
  • LED display is easy to read
  • Indicates voltage without a battery
  • Lights and vibration indicate voltage for a clear reading
  • Automatic shutoff helps save battery life
  • Uses 3 AAA Alkaline batteries (included)

Info & Guides

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Product Depth (in.) 
1.25 in 
Product Height (in.) 
7.375 in 
Product Width (in.) 
2.375 in 


Audible Alert 
Auto Ranging 
Batteries Included 
Battery Charger Included 
Battery Power Type 
Battery Size 
Case Included 
Control Type 
Data Log/Record 
Data hold 
Display Type 
Dual voltage indication 
Integral lead storage 
Interchangeable leads 
Low Battery Indicator 
Noncontact detection 
Number of Batteries Required 
Product Weight (lb.) 
0.53125 lb 
Reference Scale Included 
Test Meter Type 
Voltage Tester 
Tests Resistance 
Tests continuity 
Tools Product Type 
Test Meter 

Warranty / Certifications

Manufacturer Warranty 
This product is warranted to be free from defects in materials and workmanship for a period of two years from the date of purchase. This warranty does not cover damage which occurs in shipment or failure which results from alteration, tampering, accident, misuse, abuse, neglect, or improper maintenance. 

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Customer Questions & Answers

1 Question0 Answers

Customer Questions & Answers

Voltage Tester
Voltage Tester

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This question is from Voltage Tester
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Can I use a Klein Voltage tester to test my cicuit breaker to find a bad breaker? I just purchased this one could you please help?

This question is from Voltage Tester
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Port Orange
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July 22, 2016
Please help will this find a bad breaker?
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Customer Reviews

Rated 4.4 out of 5 by 10 reviewers.
Rated 1.0 out of 5.0 by Worse Purchase Ever I should have suspected that this item was no good. Home Depot only had one in stock. I bought it and was anxious to use it but it DOES NOT WORK! I am not buying Klein products again. I was better off using a cheap tester and I really did not need to buy a new one. I will rely on Harbor Freight tools from now on. May 19, 2016
Rated 5.0 out of 5.0 by Does what is expected price was right and it does what it was expected to do. After many many years I thought I woud reward myself. May 17, 2016
Rated 5.0 out of 5.0 by Works like it should I haven't used it but once, but it did what I bought it to do. Seems to be pretty well made and it is not huge. May 10, 2016
Rated 5.0 out of 5.0 by Saved my butt Saved my butt a few times.. It's great and simple to use. February 10, 2016
Rated 4.0 out of 5.0 by Awesome product This voltage tester works great. We were able to test our breaker box and determine the issue was with APS not our individual breakers. Saved us tons of money by not having to call an electrician. October 27, 2015
Rated 5.0 out of 5.0 by Great price For a Great Tool Work like a champ. Realy is a great price. Just as good as the higher price model October 13, 2015
Rated 5.0 out of 5.0 by Outstanding You cannot put a price on quality safety equipment, but this tester is a great value and an even better tool. Klein once again raised the bar! April 22, 2015
Rated 4.0 out of 5.0 by to jimmer of usa hi my name is vince i have a klein et 200 voltage continuity tester i think it is very good i hade to get in the ceiling on one job and the backlight on this unit helped me out because the appreciance left the torch back at the depot instead of in the truck and the leds are also very bright this is value for money unit i am from australia have you wired up manytown units i still got one to finish from vince September 24, 2012
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