The SpeedTrak II Speedometer is designed to measure the speed of a model train scale MPH. Either N-gauge or HO-gauge can be measured via a selector switch. The unit has built in sensors so no installation is required; the speedometer is simply placed over the tracks so the train passes between the box and the reflector.

The speedometer will display the speed of the train instantly after the second sensor detects the train. The direction of travel through the speedometer is unimportant, it will work either way.  The speed will be displayed for approximately 7 seconds and then go blank to conserve battery life.  If the train takes longer than 7 seconds to pass through the speedometer the unit will not reset until after the last car. A new measurement is not made until the next train comes.

The SVA-20 power pack can be automatically calibrated using a 3.5 mm cable provided when connected to the RS232 connector on the front of the SpeedTrak II. The Speed Trak II can also be connected to a computer with optional RS232 adaptor. The data format is 9600  8N1.

The speedometer uses a 9 volt battery (not included)

1 Year Limited Warranty