General Tools and Instruments ST400 v.2 - Manual (Page 4)

2. Ground the tester by touching your
thumb to the metal button at the end
of the screwdriver’s handle.
Ꮨ
Warning
Ꮨ
DO NOT TOUCH the exposed metal
portion of the screwdriver tip while it is
contact with the live side of an outlet or
a current-carrying conductor.
3. If voltage is detected, the neon bulb
inside the clear portion of the handle
will glow. If you are testing outdoors
or in a brightly lit area, shield the
handle with your hand to provide a
better view of the bulb.
SPECIFICATIONS
Voltage Detection Range:
80 to 250VAC/DC
Operating Temperature:
41° to 104°F (5° to 40°C)
@ <80%RH
Dimensions:
5.63 in. (143mm) long x 0.5 in.
(13mm) maximum diameter
Weight: 1 oz. (28g)
4
DANGER
Electric
Shock Risk