Digital AC/DC Voltage Tester 12 to 240V AC, 1.5 to 24V DC
- Voltage Tester for AC voltages from 12V to 240V AC at four useful levels aligned with commonly used residential voltages
- Tests DC voltages from 1.5V to greater than 17 to 24V at four useful levels aligned with commonly used DC voltages
- Bright LEDs illuminate to indicate the type and level of voltage detected
- Built to withstand a 9.8-Foot (3 m) drop
- Indicates polarity when measuring DC voltages
- Powers off automatically after approximately 2 minutes of non-use to conserve battery life
- CATIII 250V, Class 2, Double insulation
- Ingress protection IP41 dust and water resistant
- Built-in test lead holders on sides of tester
- Low battery indicator with easily accessible battery compartment
- Pocket clip secures tester to pocket for reliable everyday carrying
- Uses 2 x AAA batteries (included)
- Identifies and distinguishes between AC or DC voltage
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Klein Tools ET40 is an Electronic AC/DC Voltage Tester. It features indicators for positive and negative DC polarity, and tests DC voltages as low as 1.5V. It tests AC voltages 12-240VAC. Excellent for checking, verifying or troubleshooting common residential electrical wiring in electrical outlets, light fixtures, doorbells and more. It operates on 2 x AAA batteries.
Measures AC/DC voltage
DC Polarity Indicators for DC Positive, DC Negative, and Both Illuminated for AC. Tests Low DC Voltage to 1.5V. Built in Test Lead Holders on Sides of Tester.
Plastic Housing, PCB with Electronic Components
2 x AAA
9.8' (3 m)
ON/Off Switch for Power ON/OFF
AC Level Indicators: 12V, 24V, 120V, 240V and DC Indicators:1.5V, 9V, 12V, >17-24V
Integral Lead Storage:
9'' (22.9 cm)
CATIII 250V, CE
Tester, User Manual, Batteries
5.24'' (13.3 cm)
1.52'' (3.9 cm)
1.11'' (2.8 cm)
2.3 oz (66 g)
- Read, understand, and follow all instructions, cautions and warnings attached to and/or packed with all test and measurement devices before each use.
- Before each use, verify tester operation by measuring a known voltage.
- Never use the tester on a circuit with voltages that exceed the category based rating of this tester.
- Always adhere to local and national safety codes. Use personal protective equipment to prevent shock and arc blast injury where hazardous live conductors are exposed.
- Usage of this tester in any way other than that specified by the manufacturer can impair safe operation, resulting in severe injury or death.