The TechPRO® OBD-II Smartbox and cable is a versatile tool that can be connected inline with your diagnostic tool, enabling the technician to monitor vehicle battery voltage, get a visual indication of vehicle network activity and have convenient access to OBD-II pins for DVOM measurements.


  • Performs tests on all 16 pins of the OBD-II port for abnormalities caused by shorting and reverse polarity to avoid damage to your scan tool.
  • Features a voltage display that sounds an alarm, alerting the technician if the voltage falls outside a certain range.
  • Detects communication protocol, to detect which type of communication protocol the ECU is using.
  • Break out box can be connected to your OBD-II compatible tools: such as scan tools, code readers, monitor readers or data loggers.
  • Checks alternator condition for quick alternator charging checks during idling and high RPM conditions.
  • Powers other devices and can be utilized as an additional power source for for other DC loads up to 5 Amps.

TechPRO® OBD-II Smartbox & Cable

Cable Part Number: 024 80235 00 | Smartbox Part Number: 002 80027 00

Product Specifications

Operating Range 7.0 - 30 VDC input

Maximum Load Up to 5.0 Amps output

Overload Protection Yes - PTC fuse (self-healing)

Monitoring Voltages Beeper ON: <11.8V, 15.2-24V, >28V Off after 30 sec

Volt Displays 3 digit LEDs, Resolution: 0.1V

Banana Sockets 16 outputs x ø4.0mm with LED lamp in-dicators

Protocols Detected PWM (J1850), VPW (J1850), ISO 9141-2, DIS/ISO 14230-4, Canbus (J-2284)

Operating Temperature 50-122°F (0 – 50°C) with <70% permitted humidity

OBD Cable Length 5 ft (1.5 m)

Reverse Polarity Protection Yes - LED lights up with correct polarity

Battery use on OBD Lamp 3V Lithium Battery (Model: CR1220)



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