MM-CT8002 Circuit Tester with Buzzer
Safe, No-Ground Voltage Probe for Automotive Systems
The MM-CT8002 Circuit Tester is a rugged, technician-approved tool designed to safely test voltage across a wide range of automotive circuits—from 3V to 38V—without the need for a ground wire or clip. Built with ECM-safe technology, this tester is suitable for use around sensitive components such as sensors, airbags, and electronic control modules.
Housed in durable chrome metal, it includes an integrated LED light, vibration feedback, and buzzer alert, plus a V-groove needle tip for clean cable piercing and safe storage. With thousands sold across workshops and field service teams, it’s a must-have tool for modern diagnostics.
Key Features of the MM-CT8002 Circuit Tester
- No Ground Wire Required – Simplifies testing and speeds up diagnostics.
- Safe for Sensitive Electronics – Ideal for use around ECMs, airbags, and sensors.
- Detects 3V to 38V – Covers low-voltage and standard automotive systems.
- LED + Buzzer + Vibration – Triple feedback system for instant voltage detection.
- Durable Chrome Body – Built for daily use in workshop or mobile conditions.
- V-Groove Needle Accessory – Clean cable piercing with safe storage solution.
Frequently Asked Questions
- Can this tester be used near ECMs and airbags?
Yes, the MM-CT8002 is specifically designed to be safe for use with modern vehicle electronics, including engine control modules, airbags, and sensors. It avoids back-feed and grounding issues that can damage sensitive components. - How does the tester alert the user to voltage presence?
It provides triple feedback:
- LED light for visual indication,
- Audible buzzer, and
- Vibration for tactile confirmation.
This ensures you’re always aware of voltage presence, even in noisy or low-light environments.
- What voltage range does it support?
The MM-CT8002 detects from 3 volts up to 38 volts, making it perfect for automotive, truck, trailer, and low-voltage diagnostic systems. - Do I need to connect a ground clip to use it?
No. That’s one of its best features. The MM-CT8002 works without requiring a separate ground connection, making it faster and safer to use—especially in tight or awkward spaces. - What’s the benefit of the V-groove needle?
The V-groove piercing tip allows you to probe wires cleanly and precisely without causing excess damage. It also includes a secure carry solution to store the tip safely when not in use.
Get Your MM-CT8002 Circuit Tester with Buzzer at Power Start
Test smarter, safer, and faster. The MM-CT8002 Circuit Tester is the essential diagnostic tool for modern technicians who need quick, ECM-safe voltage checks. Get your MM-CT8002 Circuit Tester with Buzzer at Power Start and simplify your workflow—no ground, no fuss, just results.
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