I just added a tire safegaurd to my to my r1150gs. Purchased via amazon for $189.00. The sensors screw onto the valve stems and lock on with an Alan wrench. The sensors have replaceable batteries. The display is rechargeable and has a backlight for night use.
Setup was very simple and it seems to work very well, monitoring temperature and pressure of front and rear, with high pressure, low pressure and high temp alerts. I tested everything and it seems to be very accurate vs two separate digital pressure gauges. I mounted the display on the right handlebar left of the main controls and it fits nicely and blends in ok.
After losing a front tire at high speed due to a slow leak I became a bit compulsive about checking tire pressure constantly. I will update after a longer trip should anything less than positive come up. So far I recommend this product as an aftermarket solution. It can be configured for trikes and trailers as well.