KleinĀ® Voltage Tester, Non-Contact, 1000 VAC Maximum Measurable Voltage, 4:1 Distance, LED Light Source, Backlit LCD Display, AAA Battery, 5 to 500 Hz Frequency, Environmental Conditions: -20 to 482 deg F Temperature, IP54 Enclosure, 6-1/4 in L x 1-3/16 in W x 1-1/4 in H Dimensions