Car Relay & Voltage Tester – Universal 12V Automotive Relay Checker with LED Indicator

Quickly check the health of automotive relays with the CNBJ-707 Car Relay Tester. Designed for 12V systems, it provides a fast go / no-go LED indication to ensure relays function properly before installation or replacement. Perfect for mechanics, car enthusiasts, and DIY troubleshooting.

🔋 Works with 12V Car Batteries (11V–15V) – powered directly by the car battery with included alligator clips.
💡 LED Indicators – GREEN = pass, RED = fail.
⚡ 4-Pin & 5-Pin Relay Support – simple selector switch for compatibility.
🔄 Automatic Testing – runs 10 on/off cycles to measure closure, opening times, and consistency.
🛠 Universal Use – suitable for most common automotive relays (coil resistance above 20Ω).
✔️ Durable & Portable – lightweight tool for garages, workshops, or on-the-go repairs.

How to Use:

1. Connect tester clips to 12V car battery (red = positive, black = negative).

2. Select 4-pin or 5-pin relay mode.

3. Insert relay into the socket.

4. Press “TEST” – results shown instantly with LED lights.

Specifications:
Model: CNBJ-707 Car Relay Tester
Operating Voltage: 11V–15V (12V car battery)
Relay Types: 4-pin & 5-pin automotive relays
Indicators: RED = fail / GREEN = pass
Coil Resistance: Ideal for relays ≥ 20Ω

Package Includes:

• 1 × Car Relay Tester (CNBJ-707)

🚗 Save time diagnosing faulty relays before replacement.
🚚 Free Shipping Included