Item No.: C23A045
.This item can be used to detect metal and AC voltage.  
.The arrow on the detector indicates the testing direction.  
.Metal test: Iron pipe of diameter 20mm, depth 25mm  
.Voltage test: AC 110V electric wire: depth 40mm  
.Ambient condition: -20 to 60℃, below 30-80% RH(10% condensation)  
.Battery: 9V 6F22 or equivalent, 1PC