Klein Tools ET250 is a solid-state, digital voltage and continuity tester. It measures AC/DC voltages up to 600V and tests for continuity. Additionally, the ET250 tests GFCI protected circuits to verify that the GFCI device is functioning appropriately. The tester includes a backlight and integrated flashlight for working in reduced ambient lighting conditions.Features Tests GFCI protected circuits Integrated flashlight IP53 dust and water resistant CAT IV 600V modern solid-state design for safety Features built-in test lead holders on back of meter Backlit LCD display Uses standard replaceable multimeter test leads 9.8 ft. (3 m) drop protection Built-in Test Lead Holder and Integrated Flashlight Voltage tester automatically selects voltage or continuity; automatically powers on when any measurement is attempted Warnings Never use the tester on a circuit with voltages that exceed the category based rating of this meter. Before each use, verify tester operation by measuring a known voltage. Do not use the tester or test leads if they appear to be damaged. Voltage: 2 to 600V AC/DC Drop Protection: 9.8 ft (3 m) Ingress Protection: IP53 (except test lead jacks) Standard: CAT IV 600V, CE Accuracy: +/- (2% + 2V) Frequency: 45 to 400 Hz Weight: 0.31 lbs Overall Length: 6.06 in (15.4 cm) Overall Width: 2.31 in (5.9 cm) Overall Height: 1.64 in (4.2 cm) Depth: 2.33 in Material: Thermoplastic; Electronics Display: Backlit Digital LCD Batteries: 3 x AAA Integral Lead Storage: Yes Control Type: Digital Tests Continuity: Yes Type: Digital Voltage and Continuity Tester Application: Measure Voltage, Continuity, and Ensure GFCI Devices Function DownloadsSafety Data SheetSpec SheetInstructionsET250- UKCA Manual WEB.pdf