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Universal 12V Car Battery Checker Automotive Electronic Relay Tester LED Indicator Light Voltage Tester Car Relay Tester

Universal 12V Car Battery Checker Automotive Electronic Relay Tester LED Indicator Light Voltage Tester Car Relay Tester

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Specifications

Brand Name
NONE
Origin
Mainland China
High-concerned chemical
None
Is Batteries Included
No
External Testing Certification
ce
Material
ABS
Item Length
13
Use
Not Telecommunication
Certification
CE
Item Type
Other
Item Width
10
Model Name
24417
Item Height
2
Item Weight
148
Electronic
No
Choice
yes

Product Description

ntroduction:
  • CNBJ-707
    is a quick go/no-go tester relays that provides with indication of the
    general health and functioning of the most common Automotive relays.
    Tester will check for proper functioning of the relay contacts by
    connecting the car battery (11V--15V) to the relay coil. Tester will
    watch the pin configuration,the time to contacts closure and opening,
    consistency of the relay during each test session, Tester will light the
    GREEN LED if all passed during the test session,if not light the RED
    LED.

Introduction:
  • 1.
    Connect the power leads to the car battery --black alligator clip to
    negative terminal, red alligator clip to positive terminal.

  • 2. Tester is powered up when the LED illuminates in RED.

  • 3.
    Check the relay before plugging into the tester. If it's a 4 pin
    relay,select"4 pin" on the tester.If it's a 5 pin relay, select"5 pin"on
    the tester.

  • 4. Plug in the relay into one of the three receptacles.

  • 5. Press the "TEST" button.

  • 6.
    Tester will check the pin configuration of the unknown relay. Tester
    will light the RED LED if the unkonwn relay is not the same to the most
    of common automotive relaysor the pin of the unknown relay is destroyed.

  • 7.Tester
    will open and close the relay 10 times for testing the time to contacts
    closure and opening if the pin configuration of the relay is right.
    Tester will light the RED LED immediately if the time is overtime.

  • 8.
    Tester will check the consistency of the relay after testing the time
    to contacts closure and opening ten times. Tester will light the GREEN
    LED if the test passed, if not light the RED LED.

  • 9. Disconnect power leads from the car battery and remove relay from the tester.

 Attention:
  • 1. The car battery must be 12V battery, and the voltage of the battery is among 11V-15V.

  • 2. Ideal for coil resistance above 20 ohms.


Package Included:
  • 1 x Car Relay Tester



Pros & Cons

Pros

  • Quick and easy go/no-go testing for most common automotive relays
  • CE certified for safe automotive electrical use
  • Durable ABS plastic construction for long-lasting garage or roadside use
  • Compact, lightweight design for easy portability and storage in your vehicle

Cons

  • Only compatible with 11V-15V (standard 12V) automotive relays, and will not work with non-standard voltage systems
  • No included user manual or installation instructions, so first-time users may need additional guidance
  • Only works with most common automotive relay models, and may not support specialized or custom-built relays
  • Compact size makes it easy to misplace or lose if not stored properly

Common Questions

What material is this automotive relay tester made from?

This relay tester is constructed from durable ABS plastic for long-lasting use.

What voltage range does this tester operate with?

This tester connects to a 11V-15V car battery to test standard automotive relays.

What does this relay tester do?

This tester checks the general health and functioning of most common automotive relays, using an LED indicator light to show proper relay operation.

Are any batteries included with this tester?

No, batteries are not included with this purchase, per the product specifications.

Is this tester certified for safe automotive use?

Yes, this relay tester has CE certification for safe use with automotive electrical systems.

Product information last updated on December 27, 2025