Description
Quickly Troubleshoot Lighting and Air Brake Systems with the Industry’s Leading Mobile Universal Trailer Tester Head
This intuitive and durable design is ideal for both on and off-site trailer testing and repairs on emergency vehicles.
Features and Benefits:
ELECTRICAL TESTING(12/24 Volt Operation)
- Power lights: Manually, all-on, auto scan, or by remote control
- Audible and visual alerts: cross, open, overloaded and short circuit indication
- Pulsar Mode allows for chasing down short circuits without blowing fuses
- Advanced trailer wiring diagnostics
- Amperage readout and range (0-20 amps)
- Cable testing
- Ground failure detection: differentiates between wire and chassis ground
AIR BRAKE TESTING
- Performs leak-down test on service and emergency lines
- Remote control allows observation of slackers to measure and adjust pushrods
- Real-time, repetitive brake activation to find developing problems and verify leaking servo cans
REMOTE CONTROL
- (2x) 12-button remote controls test all trailer electric circuitry and air brake actuation, 200 ft. range
- Sync multiple (12) remotes to one unit
Includes:
• (2x) 12-Button Remote Control (#MUT-RM12) • 5′ 7-Way Cable (#7900K-1) • External Battery Connector with Clips(#9005A-4AS) • 8′ Red Hose with Gladhands (#7900AP-8RD-AS) • 8′ Blue Hose with Gladhands (7900AP-8BL-AS) • 500mA Battery Charger (#CHR0001) • Face/Battery Shield (#9008-4R)
Read Our Full Trailer Testing Blog Here

Clae Joselove (verified owner) –
This trailer tester works well, my only issue is the range of the remote. Standing at the rear of a trailer with clear line of sight to the tester it will have issues switching modes. I reached out and they sent a new sensor but that didn’t help. I finally just mounted the antenna to the outside of the box and that works better. The other issue I have is there’s not battery meter for the 12v battery. It would be nice to know where the charge level is at as to not get stranded. I bought a led volt meter and wired it to the switch so when I turn on the box it tells me the battery volts. Other than that it’s a good product and I would still recommend to others with those notes.
George P Hanos (verified owner) –
PAul Eckwall, IPA Account Mgr. was extremely helpful to us in make this sale happen and go smoothly!
Thanks,
John Anayannis
President,
USAB2C.com