ltem description from the seller
Specifications:
Counts: 4000 counts
Power Supply: 2 x 1.5 AAA Battery
(not included)
Features:
4000 counts digital mini smart multimeter
phase sequence detection
ncv induction detection
resistance/capacitance
diode/live detection/Hz
Ambient temperature detection
It is a stable performance, high precision, high reliability clear readings, and overload protection.