
1
C
®
For Professionals...Since 1857

ENGLISH
The Klein Tools ET50 is a solid-state electrical tester. It measures AC/DC
600V RMS (displayed by LEDs)
on connection, up to 150k
70% to 100% of indicated voltage
0°C to 30°C (32°F to 86°F) 90%
30°C to 40°C (86°F to 104°F) 75%
40°C to 55°C (104°F to 131°F) 45%
0°C to 55°C (32°F to 131°F)
0°C to 55°C (32°F to 131°F)
To ensure safe operation and service of the tester, follow these instructions.
a known voltage or current.
category based rating of this meter.
the metal probe contacts when making measurements.
are connected to a voltage source.
Always adhere to local and national safety codes. Use individual
Voltage Level Indicators:
Voltage Type Indicators:
AC Frequency:
Maximum Voltage To Earth Ground:
Maximum Measurable Voltage:
Input Impedance:
Usage Duty Cycle (Above 220V):
Accuracy:
Battery Type:
Operating Altitude:
Relative Humidity:
Operating Temperature:
Storage Temperature:
Dimensions:
Weight:
Safety:
CAT rating:

Voltage detection will function without batteries installed.
Vibration will function only with batteries installed.
Accuracy of indicator lights is 70% to 100% of the voltage displayed
to account for normal variations in supply voltage.
Voltage-type indicator LEDs (DC, AC) illuminate at around 12V.
The approximate input resistance of 15k
will reduce the possibility of
false readings due to ghost voltages on de-energized lines.
to test tamper-resistant outlets.
Positive DC Voltage Warning or Caution
to the primary source. Examples
at the primary supply voltage
source. Examples include outdoor
service and electricity meter.
+
Negative DC Voltage Dangerous levels
–
AC Voltage Double Insulated Class II
~
Earth Ground ETL Certifi cation
This product has been tested to the requirements of
CAN/CSA-C22.2 No. 61010-1, second edition, including
1
C
Amendment 1, or a later version of the same standard
incorporating the same level of testing requirements
CAT III CAT IV

Time spent operational at voltages above 220V must be less than
Time spent operational at voltages above 220V must be less than
60 seconds, with a cool-off time of at least 5 minutes.
600
Tester will turn on automatically when voltage is applied.
480
220
120
5
120

ENGLISH
Check the GFCI Receptacle user manual for more information.
Check the GFCI Receptacle user manual for more information.
Always contact a qualifi ed electrician to resolve wiring problems.
Always contact a qualifi ed electrician to resolve wiring problems.
Operate the Push Button on the GFCI Receptacle. If the GFCI circuit
Operate the Push Button on the GFCI Receptacle. If the GFCI circuit
To test the functionality of a Ground Fault Circuit Interrupter receptacle,
apply leads to the hot and ground terminals for 7 seconds.
will go out and the ET50 will stop indicating voltage.
will remain and the ET50 will continue to indicate voltage.
To resolve an issue, contact a qualifi ed electrician.

This product is warranted to be free from defects in materials and workmanship
for a period of two years from the date of purchase. During this warranty period,
any unit which fails to conform to this warranty under normal use and service.
This warranty does not cover damage which occurs in shipment or failure which
covered by warranty. A purchase receipt or other proof of original purchase date
will be required before warranty repairs will be rendered.
Any implied warranties, including but not limited to implied warranties of
warranty. Klein Tools shall not be liable for loss of use of the instrument or other
claim or claims for such damage, expenses or economic loss.
warranty, please contact Klein Tools at 1-800-553-4676.
time. Do not expose to high temperatures or humidity. After a period of storage
section, allow the instrument to return to normal operating conditions before
Caution:
This symbol indicates that equipment and its accessories
shall be subject to a separate collection and correct disposal.