Truck System Technologies Tire Pressure and Temperature Monitor
TM 507RV Quick Installation Guide
It is advisable to set your parameters on the monitor before inputting the serial numbers so that the alarm will not go off while inputting your serial numbers.
Turn the monitor on using the side power switch.
Hold the MODE button down for about six seconds until the parameter settings are displayed.
The first screen should show a flashing PSI icon in the left box. If this is the way you want to read your tire pressure, press the MODE button once to move to the next screen. There should be a C for Celsius or an F for Fahrenheit displayed in the right box. Use the + button to change from C to F.
Tap the MODE button again to move to the next screen. It should look like this.
You are setting the high pressure alarm for the two front tires (represented by the flashing front tires and the flashing “fat tire for high”). We have found that setting the high parameter about 20 PSI higher than our correct tire pressure of 100 PSI works for us (any lower and the alarm seems to go off needlessly on long driving days in very hot weather), but you may set this where you like. So, using the – (minus) or + (plus) button, tap it until you reach the appropriate number. Keep in mind that you cannot move this setting lower than where the low pressure alarm setting is at (usually 100) so you may have to move on, set the low parameters and come back to the high setting.
Tap the MODE button again to move to the next screen. It should look like this.
You are setting the low pressure alarm for the two front tires (represented by the flashing tires and the flashing “skinny tire for low”). We have found that setting the low parameter about 10 PSI under our correct tire pressure of 100 PSI works for us (any higher and the alarm seems to go off needlessly on cold mornings), but you may set this where you like. So, using the – (minus) or + (plus) button, tap it until you reach the appropriate number. On our tow car, where the correct tire pressure is 35 PSI, we set the high parameter at 45 and the low parameter at 28.
You will repeat this process to set three more zones (the appropriate tires will be flashing for each zone) and, using the MODE button to continue scrolling, go back to any high zones that you were unable to set.
For the high temperature setting, we left ours at the lowest setting of 157 or 158, but you can use the + button to set it higher.
When you are finished, tap the SET key to save your parameters (if you get distracted while setting the parameters, tap the SET key to save your work).
You are now finished setting the alarm parameters and you can record the serial numbers.
Programming the serial numbers into the monitor. Turn the monitor on. Hold the CODE button down for six seconds and release after the beep. A tire will be flashing and there will be six F’s in the boxes. Use the + or – button to scroll to the tire you want to program.
Place the monitor close to the sensor and press the CODE button once. The red light will flash and the sensor will send the serial number to the monitor. The monitor will display the serial number and beep.
If the monitor has not received the serial number within six seconds, the red light will be off and the monitor will sound two beeps and you can try again.
Using the + or – button and scroll to the next tire position and repeat with the next sensor.
To DELETE a serial number from the monitor, IN THIS MODE, using the + or – button go to the tire you wish to delete, press the SET button down for 3 seconds. The serial number will be deleted.
Installing the sensors. Remove all valve stem caps before installing sensors. While installing the sensors, you will hear the hiss of air before the final turns of the sensor.The sensors should be firmly tightened but, do not need to be over-tightened. There is a rubber o-ring inside to keep them from leaking.
You may need various extensions to make it easier to access your valve stems.
Have some soapy water on hand to test for air leaks when installing extensions or sensors on your valve stems.
Some long rubber valve stems may be too flexible to have a sensor on them. Your local tire shop can change your rubber valve stems to steel valve stems for a nominal fee, usually without removing the tires.
WE HIGHLY RECOMMEND THAT YOU READ THE MANUAL!