| Yes it starts to display at 40°C, but it does lag behind the water temerature gauge. When the water temperature is reading 80°C, the translogic unit is still displaying 55°C. However, once the mass of metal has heated-up, it reads very close (ie +or - 4°C)
Calibration on the road is quiet easy, as long as you have the original rev counter plugged in, and another bike to follow. | 
Threaded Mode