Preparation For Use; Operation - Steren HER-257 Manual De Instrucciones

Slide out
cover, on the back of the unit.
Connect a fresh 9V battery. Replace
cover and securely snap in place.
Now the unit is ready for use.
METAL/ VOLTAGE DETECTION PROCEDURE:
1.- Hold the unit as shown in illustration, and turn the blue knob fully
downwards.
10

Preparation for use

battery compartment

Operation