Chigee External Tyre Pressure Sensor

These are simple to fit and work relatively well but I am dubious about their accuracy. I have a Snap On pencil style gauge that I have had for years and seems to be very accurate. This reads three or four psi lower than the Chigee sensors. One other aspect worth noting on my R9T with spokes it was tricky to fit to the front tyre without clipping the disc. They seem to be reliable overall and they did show the tyre pressure increasing with temperature as the tyre warmed up. It is nice to have on board as it will alert you if the pressure drops below the threshold and the batteries are easy to replace unlike the ones that go inside the wheels.

Very well made and just works, It drop a star as on arrival one of the devices didn't work, so I wasted an while trying to figure out that it had a duff battery, I then had to wait another day for new batteries to arrive. Easy to set us and use, gives good feedback about pressures and tyre temp.