Draper DIY Screw Driver Mains Tester 220V - 250V 

Flat probe, one piece moulded insulated blade sheath and transparent plastic handle for maximum safety. Testing range 220-250V. Display packed.

Used to determine live terminals of electric circuits within the voltage range stamped on the handle.

Instructions For Use

• Place screwdriver end into live aperature and press your thumb against metal cap on handle.
• If supply is live - the neon bulb in the handle will light.
• Tester will not illuminate if placed in contact with neutral or earth terminals or if supply is dead.
• Always check bulb is working by using tester first on a live circuit.
• Never touch the un-insulated part of the blade when testing.