* Power Supply: 3V DC (R6P×2 manganese alloy batteries, continuously working for 70 hours)
* Performance-guarantee Range: AC70-1000V, 45/65Hz (sine wave, continuously), static induction.
* Diameter of wires can be clamped: ø1.6mm-ø16mm
* Display:【Positive Phase Sequence】
The four phase-sequence lamps blink in order (clockwise).
【Negative Phase Sequence】
The four phase-sequence lamps blink in order (counterclockwise).
【Line-voltage Indication】L1,L2,L3 lamp light up.
【Default Phase】L1/L2/L3 lamp is off.
【Open Circuit】L1/L2/L3 lamp is off.
