AUTOOL RT120 - 12V Automotive Relay Tester

AUTOOL RT120 - 12V Automotive Relay Tester

Check common automotive relays quickly during electrical fault-finding.

The AUTOOL RT120 12V Automotive Relay Tester is designed to make common automotive relay testing quicker and more straightforward. It gives technicians a convenient bench-style method of checking relay operation during electrical diagnosis instead of relying solely on manual jumper-wire testing.

Why This Tool Is Useful

Designed to give technicians clearer, repeatable test information during diagnosis instead of relying on guesswork or visual checks alone.

Key Features

• The AUTOOL RT120 is a compact and easy-to-use automotive relay tester designed to quickly check the condition and performance of 12V DC relays. It helps technicians verify whether a relay is functioning properly by automatically testing coil activation, contact switching, and response time.
• This is the ideal tool for quickly identifying faulty relays in vehicles — saving time, reducing guesswork, and preventing unnecessary parts replacement.
• Key Features
• Designed for testing 12V DC automotive relays
• Tests both 4-pin and 5-pin relays
• Automatically checks relay coil activation and contact switching
• LED indicators clearly show test results (Pass / Fail)
• Plug-and-play operation — simply insert relay and press “Test”
• Durable construction for daily professional use
• Supported Relay Types: 4-pin and 5-pin
• Automotive workshops and electricians
• Technicians diagnosing starting, lighting, or fan relay issues
• Mobile repair services and automotive enthusiasts
• Why Choose the AUTOOL RT120
• The RT120 helps detect faulty relays in seconds — saving you from replacing unnecessary parts or chasing false electrical faults. Simple, effective, and reliable, it’s the perfect companion for any diagnostic toolbox.
• ✅ Product Highlights
• Tests 12 V automotive relays ✔ Works with 4-pin & 5-pin designs ✔ LED indicator test results ✔ Compact & portable ✔ Plug-and-play simplicity

Specifications

• Compact, lightweight, and built for workshop or mobile use
• Indicators: LED pass/fail display
• Dimensions: 150 × 85 × 35 mm (approx.)
• Operating Voltage: DC 12 V
• Power Source: Vehicle battery or DC 12 V supply
• Weight: ~250 g
• Power Cable (12 V input)