
ET38-en- _V1.2 / US 03 22
Screwdriver Voltage and Continuity Tester
To check a circuit for voltage, insert the screwdriver probe into the outlet or carefully
touch probe to the electrical contact or conductor to be tested. Touch metal contact on
the side of the tester housing with finger. If voltage is present, the LED indicator will
WARNING: Do not touch the screwdriver tip with fingers.
1. Before taking a continuity test, make sure that power to the device or circuit under
test is disconnected and that all fuses are removed.
2. Touch the probe to one end of the conductor to be tested.
3. Place finger or hand on the metal plate located on the tester handle.
4. Use other hand to complete the circuit on the other end of the conductor.
5. If continuity is made, the LED indicator will light.
WARNING: To avoid electric shock, never measure continuity on circuits that have
CAUTION: Always test on a known live circuit before use to make sure tester is
operating correctly and batteries are good.
To test the quality of the batteries, touch the contact point on the tester handle while
touching the screwdriver tip. If the LED indicator does not light, replace the batteries.
1. Use a screwdriver to remove the Philips screw and open the battery compartment.
2. Replace with two (2) button type LR44 or equivalent batteries.
3. Replace the cover and re-test.
CAUTION: Use extreme caution when checking electrical circuits to avoid injury due
to electrical shock. FLIR Systems, Inc. assumes basic knowledge of electricity on the
part of the user and is not responsible for any injury or damages due to improper
Voltage Range 300V AC 12~
Power supply Two 1.5V button cell batteries
Operating Temperature 41 ~ 104°F (5 ~ 40°C)
Relative Humidity 80% RH Max.
Altitude 7000 ft. (2000m) <
Overvoltage class CAT II / 300V
Pollution degree 2 (accordance with IED- 664)
To clean, use a damp cloth only with no chemical detergents or alcohol.
Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equipment to be supplied from the
Double Insulation: The meter is protected by double insulation or reinforced
Copyright 2022 FLIR Systems Inc. ©
All rights reserved including the right of reproduction in whole or in part in any form