
To ensure safe operation and service of the tester, follow these
instructions. Failure to observe these warnings can result in severe
injury or death.
• LASER RADIATION, Class II laser. direct laser beam into eyes, stare DO NOT DO NOT
into the beam, or view directly with optical instruments as this can cause DO NOT
severe and permanent eye damage.
• Risk of electric shock and burn. Contact with live circuits could result in death or
• Use caution with voltages above 25V AC as a shock hazard may exist.
• A blinking red or a steadily illuminated red NCV Indicator
indicates the presence of voltage. A steadily illuminated blue NCV Indicator
indicates that no voltage is detected, however voltage could still be present.
• Before and after each use, verify operation by testing a known working circuit that is
within the rating of this unit.
• Never assume neutral or ground wires are de-energized. Neutrals in multi-wire branch
circuits may be energized when disconnected and must be retested before handling.
• The tester detect voltage if:WILL NOT
• The operator is not grounded or is otherwise isolated from an effective earth ground.
• The tester MAY NOT detect voltage if:
• The user is not holding the tester.
• The user is insulated from the tester with a glove or other materials.
• The wire is partially buried or in a grounded metal conduit.
• The tester is at a distance from the voltage source.
• The field created by the voltage source is being blocked, dampened, or otherwise
• The frequency of the voltage is not a perfect sine wave between 50 and 500Hz.
• The tester is outside of operating conditions (listed in Specifications section).
• Operation may be affected by differences in socket design and insulation thickness and type.
• In bright light conditions, the LED visual indicators will be less visible.
• When the NCV function is activated, the NCV Indicator
will be illuminated either
red or blue. DO NOT USE THE NVC FUNCTION UNLESS THE NCV INDICATOR
• Do not use if tester appears damaged or is not operating properly. If in doubt, replace
• Do not apply more than the rated voltage as marked on the tester (1000V).
• Detection within the range of 12V to 1000V is specified under “normal” conditions as
detailed in the GENERAL SPECIFICATIONS section. The tester may detect at a different
threshold at different conditions, or may not detect at all unless:
• The tip of the tester is within 0.25" (6 mm) of an AC voltage source radiating unimpeded.
• The user is holding the body of the tester with his or her bare hand.
• The user is standing on or connected to earth ground.
• The air humidity is nominal (50% relative humidity – non-condensing).
• The tester is held still.
• Always wear approved eye protection.
• Comply with local and national safety requirements.
• If this product is used in a manner not specified by the manufacturer, protection
provided by the product may be affected.
CHECKING FOR THE PRESENCE OF AC VOLTAGE
1. Prior to use, test on a known live circuit to verify tester
near an AC voltage source. If voltage is
present, the unit will emit audible beeps and the NCV Indicator
With the NCVT-6 powered off, press and hold the On/Off Button for
five seconds (the NCV On/Off
for NCV mode, or the LDM Control
for LDM mode) to power-on in Silent mode. While Silent
mode is active, the silent mode icon
will be displayed. All visual
indicators and display readings will continue to function as normal,
but no audible indicators will be given. Silent mode will remain active
until the NCVT-6 is powered-off.
While the NCV function is active, the display
following 15 seconds of no voltage detection (the NCV indicator
will remain illuminated). After 4 minutes of further inactivity, the
NCVT-6 will automatically power-off.
While the LDM function is active, the NCVT-6 will automatically
power-off following 15 seconds of inactivity.
Be sure tester is turned off and wipe with a clean, dry lint-free
Do not use abrasive cleaners or solvents.
Remove the batteries when not in use for a prolonged period
of time. Do not expose to high temperatures or humidity. After
a period of storage in extreme conditions exceeding the limits
mentioned in the General Specifications section, allow the tester to
return to normal operating conditions before using.
Do not place equipment and its accessories in the trash.
Items must be properly disposed of in accordance with local
regulations. Please see www.epa.gov www.erecycle.org or
for additional information.
450 Bond Street, Lincolnshire, IL 60069
customerservice@kleintools.com
When the Battery Status Indicator
shows only one bar remaining,
the LDM functionality will be disabled, and the NCV functionality has less
than 8 hours remaining. At this point, the batteries should be replaced:
and remove/recycle spent batteries
2. Install two new AAA batteries
3. Screw battery cap until fully seated to ensure a tight seal, being careful
NOTE: Damage to the O-ring can affect
the IP40 dust resistant rating, but will not affect functionality.
FUNCTION BUTTONS (FIG. 1)
NON-CONTACT VOLTAGE TESTING (NCV) ON/OFF BUTTON
To turn on the NCVT-6 and activate the Non-Contact Voltage Testing
(NCV) function, press and release the NCV Power Button
tester will emit a single audible beep and the NCV Indicator
illuminate with a solid blue light. A proximity sensor indicating
voltage strength using a dash scale will be shown on the LCD
. Press and hold the NCV Power Button
seconds to power off the NCVT-6.
NOTE: When the Laser Distance Meter (LDM) function is active, a
short press of the NCV Power Button
function and enter the NCV function.
LASER DISTANCE METER (LDM) ON/OFF BUTTON
To activate the LDM function, press the LDM Control Button
• A short press of the LDM Control Button
to emit an audible beep and take a distance measurement. The value
of the distance measurement will be shown on the Display
and hold the LDM Control Button
for two seconds to power off
the Laser Distance Meter.
• A long press and hold of the LDM Control Button
continuous measurement mode for the LDM function. As each
new distance measurement is taken, the NCVT-6 will emit
an audible beep and will update the display
WARNING: LASER RADIATION. do any of the DO NOT
following, as severe and permanent eye damage could result:
DO NOT direct laser beam into eyes.
DO NOT stare into the beam.
DO NOT view directly with optical instruments.
• DO NOT attempt to repair this tester. It contains no serviceable parts.
• DO NOT expose tester to extremes in temperature or high humidity.
The Klein Tools NCVT-6 is a full-range non-contact voltage tester
with an integrated laser distance meter. It can detect voltage from
12V to 1000V AC and can measure distance from 2 in. to 65.6 ft.
(51 mm to 20 m). Under normal operating conditions, at distances
from 51 mm (2 in) – 10 m (32.8 ft) the NCVT-6 has an accuracy
of +/- 1.6 mm (1/16 in). At distances >10m (32.8 ft) – 20m (65.6
ft ) the NCVT-6 has an accuracy of +/- 3.2 mm (1/8 in). The laser
distance meter functions independently from the NCVT.
• Distance Measurement Range: 2 in. to 65.6 ft. (51 mm to 20 m)
• Voltage Detection Range: 12V to 1000V AC
• Frequency Range: 50 to 500 Hz
• Laser: Class II, 630 to 670nm, Max. Power <1mW
• Batteries: 2x AAA 1.5V Alkaline
• Operating and Storage Altitude: Up to 6562 ft. (2000 m)
• Operating and Storage Temp: ° ° ° °32 to 122 F (0 to 50 C)
• Relative Humidity: <85% non-condensing
• Dimensions: 6.45" x 1.32" x 1.21" (164 x 34 x 31 mm)
• Weight: 3.4 oz. (96 g) including batteries
• Safety Rating: CAT IV 1000V AC
• Drop Protection: 6.6 ft. (2 m)
• Ingress Protection: IP40 Dust resistant
• Standards: Conforms to UL STD. 61010-1, 61010-2-030
CSA STD. C22.2 No. 61010-1, 61010-2-030
• Complies with: 21 CFR 1040.10 and 1040.11 except for deviations
pursuant to laser notice No. 50, dated June 24, 2007.
Specifications subject to change.
FUNCTION BUTTONS (FIG. 1)
CHANGE UNITS / REFERENCE POINT BUTTON
• A short press of the Change Units / Reference Point Button
switch the measurement reference point between Reference Point 1
) and Reference point 2 (Battery Cap
• A long press of the Change Units/Ref. Point Button
the units of measurement for the LDM function between meters,
inches with decimals, inches with fractions, feet with decimals, and