Klein Tools® AC/DC Voltage and Circuit Continuity Tester

An Accurate and Cost-Effective Electrical Tester

We Guarantee to Have the Best Price

What's special about this electrical multi-tester?

  • Measures voltage (12 V-600 V) and tests for continuity of AC and DC circuits, providing usable data for electrical maintenance
  • Voltage testing requires no batteries, keeping costs low for those who only want to test voltage
  • Simple, easy to read LED display for fast results
  • Ideal for low-medium voltage electrical work and hobbyists
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Klein Tools' Voltage and Continuity Tester provides electrical workers with a low-cost, easy to use, and accurate multi-tester. This instrument requires no power to test from 12 V-600 V, tests circuit continuity, and has a simple light-up LED display for quick results.

Part #Voltage Test RangeColorWeightPrice
KT-ET25048 V - 600 VBlack and Orange0.4 lb
  • Built in work light* lets you work in dark areas without having to fumble with other tools
  • Low impedance (15kΩ) reduces the risk of false readings from de-energized lines, ensuring accurate results
  • Integrated test leads eliminate the risk of lost leads
  • Solid state design lacks moving parts and is safer than solenoid testers
  • Sounds off and vibrates when voltages above 48 V are detected*, increasing electrical safety by keeping you informed of dangerous voltages
  • No calibration or setup required, simply apply test leads and unit automatically turns on and takes reading
  • CSA C22.2-1010.1
  • ETL Certified

* Batteries required for this feature

Part # KT-ET250
Voltage Level Indicators 12, 24, 48, 120, 208, 240, 277, 480, 600
Voltage Type Indicators AC, DC Positive, DC Negative
AC Frequency 45Hz to 66Hz
Maximum Voltage to Earth Ground 600 V RMS
Maximum Measurable Voltage 600 V RMS (displayed by LEDs)
Input Impedance 15kΩ on connection, up to 150kΩ steady-state
Continuity < 270kΩ
Usage Duty Cycle (Above 277V) 1 minute on, 5 minutes off
Accuracy 70% to 100% of indicated voltage
Environmental Tolerance
Operating Altitude 6,561 ft (2000m)
Relative Humidity 32°F to 86°F (0°C to 30°C) at 90%
86°F to 104°F (30°C to 40°C) at 75%
104°F to 131°F (40°C to 55°C) at 45%
Operating Temperature 32°F to 131°F (0°C to 55°C)
Storage Temperature 32°F to 131°F (0°C to 55°C)
Dimensions 7.375" x 2.375" x 1.25" (18.73 x 6.03 x 3.17 cm)
Weight 0.5 lb (0.22 kg)
Safety Pollution Degree





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