Thread: TPMS

Hi,
I bought a set of internals, but am waiting till I get new tyres fitted.
I was quoted $100:00 to have them fitted in the present tyres and I will need new tyres soon, so it can be done then at a fraction of the cost.
Cheers

I have heard the internal sensors are often damaged when the tyre is changed. Even when the tyre shop is made aware of it.

I have Doran external sensors on the valve stem for the last 4 years. Lots of deep sand, mud and water. Still there. No rim damage. Just screw on. No locking mechanism. The only drawback is the sensor is completely sealed so the it needs to be replaced when the battery goes flat. Between 5-7 years. But sensors with replaceable batteries are more likely to leak meaning you need to replace the sensor anyway.

Hi
Mine are a replacement valve stem, so should be routine care from the tyre shop.
Cheers

I've had a Sensatyre system with internal sensors on alloy rims. After about 4 years the sensors batteries started to fail. You cannot replace the batteries but must replace the sensors at $80 each, an expensive exercise. I pulled one of the inoperative sensors apart, the battery is a button type with solder tubs, they are available on ebay for a couple of dollars each. As we were going away shortly after the sensors started failing I bought a $40 set of eternal valve mounted sensors and display off ebay. They work perfectly and when the batteries start to fail after a few years can be easily replaced for few dollars.
A short piece of insulation tube on the valve stem stops them wobbling and making the rims. The best bit is the display is solar powered and doesn't need a 12v connection so can be sat anywhere up on top of the day.

Originally Posted by oka374

A short piece of insulation tube on the valve stem stops them wobbling and making the rims. The best bit is the display is solar powered and doesn't need a 12v connection so can be sat anywhere up on top of the day.

I've used rubber stoppers to prevent the rubbing against the rim but it looks ugly and I've had 2 sensors fall off, hence converting to the internal type. I've ordered these 6 TPMS Tyre Pressure Monitoring System Caravan Truck RV Sensor LCD 4WD Wireless 4x4 to see how they go. In fact they look exactly the same as my current Safe-T-Dave set only internal. Maybe I can pair my existing sensors with the new unit to give me a whole pile of spares?

Originally Posted by rocket rod

I've ordered these 6 TPMS Tyre Pressure Monitoring System Caravan Truck RV Sensor LCD 4WD Wireless 4x4 to see how they go. In fact they look exactly the same as my current Safe-T-Dave set only internal. Maybe I can pair my existing sensors with the new unit to give me a whole pile of spares?

Let us know how you go installing these sensors.
I've currently got the internal Sensatyre kit (on several vehicles - brilliant bit of gear) but after about 6-7yrs they're starting to fail. Probably not impossible to replace battery but would be high risk and time consuming. I've also used the external sensors on another vehicle (Coaster bus) and in this installation they haven't been as successful but it possibly could come down to the installation & location of remote aerial. I would never go down this path again.
The internal sensors are ok except if you have to use tyre fitters, even once told, I've had them break them, or the band clamp. Luckily I do 90% of my own tyre fitting.
I like the look of these valve replacement sensors but have never used them. Very curious to know if they are installed with no problems (and no leaks) and do you know if I could sync them to my Sensatyre receiver? Sensatyre states they operate 433MHz whereas Masten operate on 433.93MHz.
Let us know how you go.
Cheers.

Rod, I have seen one of these valve replacement sensors sheared off completely. Being solid metal means no give when hit. If you’ve already lost two of the external type I think there’s a good chance you’ll lose one of these too but in that case the whole valve’s gone.

Having said that, the impact was from a rock or root on a tight technical track rather than the open road, so the risk somewhat depends on where you go.

Cheers,
Scott

Originally Posted by rocket rod

Twice on my current TPMS the valve sensors have fallen off

Mine have lock-nuts.