A slim, cig-lighter style TPMS for 4WD, passenger vehicles, some motorhomes and mini buses.

The Steelmate TP-77 is a DIY TPMS that allows the driver to monitor up to 4 tyres in real time using an easy-to-see LCD display. It also comes with a USB slot which allows drivers to charge their phones or use other electronics equipment.

*Internal & External Sensors Available



 TP-77 w USB

The system can monitor tyre pressure from as low as 10 PSI, which is perfect for 4WDers. It can monitor up to 75 PSI, which is also appealing to some drivers of maxi taxis, cars, motorhomes and mini buses etc.

The system monitors both pressure and temperature, and will alert the driver of leaks, punctures or over-heating (over 80 °C/176°F) and low battery etc. In addition, the alarm threshold of pressure can be set and adjusted by the driver.

Installation is a breeze – Simply plug the LCD into any 12v power socket. Screw the pressure sensors onto the wheel valves, replacing the valve caps. The sensors are pre-configured and labeled, and you are ready to go..

Key Features

  • Plug-in LCD data receiver with extra USB slot
  • Monitoring rressure range (10~75 psi)
  • Easy screw-on-design with lock
  • Battery replaceble
  • Alert threshold adjustbale (adjuatbale range: 18~66PSI)
  • Pressure and temperature measuring units selectable (PSI/BAR/)
  • Small sensor design – only 2cm & weight 9.6g
  • DIY convenience.




  • Operating Frequency: 433.92MHz
  • Sensor Battery Voltage: 3V
  • Battery Type: CR1632
  • Operating Temperature: -20°C – +60°C
  • Pressure Range: 0-75 Psi, adjsuatble range: 18~66 Psi
  • High Pressure Value: 75 Psi
  • Low Pressure Value: 10 Psi
  • Working distance: Sensor to display: 5m depending on the vehicles


  • Operating Frequency: 433.92MHz
  • Operating Voltage: 12v (+/- 3v)
  • Operating Temperature: -40°C – +85°C