TST Tire Pressure Monitor

I turned on the monitor but it's not working

Is it charged? You must charge the monitor using the USB cable that came with the unit, or it will not turn on. If the unit still won't go on (the monitor's screen is blank), check with TST Technical Support at 770-889-9102

One of the sensors is not reading on the monitor

The most common reason for this is that the sensor battery needs to be replaced. If other sensors are reading normally, put a fresh battery into the sensor that won't read on the monitor. The sensor takes either a CR2032 or CR1632 coin battery, avail

Should I install the repeater?

What battery for a TST sensor & how to replace?

When replacing batteries, we recommend also replacing the O-ring. You can see the procedure in this video. Spare O-rings were provided with your TST kit when you bought it, and if you need more you can order the spare parts directly from TST.

Can you help me program TST sensors?

TST's Support Line staff can help you do this over the phone. This team is staffed with RVers who are friendly and capable. Contact them at: 770-889-9102

Do I need to upgrade to metal valve stems to use TST?

The cap sensor system that we include with TST tire pressure monitors does not require upgrading your valve stems. You can install cap sensors on the rubber valve stems that came with your Airstream. However, if you wish to upgrade to all-metal (stee

Do I need to remove the TST sensors between trips?

You can leave your TST sensors on the tires all the time. The springs in the valve won't "go bad" (despite what some YouTubers think) and there's no need at all to remove the sensors between trips. If you remove a sensor and find that the tire valve

Sensor compatibility with TST 770

TST 770 models (with touchscreen) are backward-compatible with most TST sensors. If the date code on the sensor is later than 4519, the sensor will work with a 770 system. See photo below. If you are having trouble pairing the sensor, be sure the CR2

Ways to connect the TST booster / repeater

The TST booster can be attached to any constant 12-volt power source, including those inside the RV. These include:. It is OK to install the repeater/booster inside the RV, toward the front. Make sure that the 12 volt power connection you use is not

Frequently-Asked Questions about TST

You don't need to rebalance the wheels of your trailer or motorhome to account for the weight of TST sensors. They aren't heavy enough to throw off the wheel balance. Each TST cap sensor weighs 0.59 ounces, or 16.8 grams. The sensor batteries last 12