High and Low Voltage Detector KEW5720 KYORITSU

An extendable type high and low voltage electroscope.It detects low voltage while the extendable pipe is shrunk and high voltage while the extendable pipe is extended.Built-in battery and internal circuit can be checked before use.DC Voltage (V):-AC Voltage (V):80 to 7000W x D x H: 35 x 35 x 256 to 717mmPower Supply: AAA Dry Battery (R03) x 2 (accessory)