The Spektrum™ Lap Timer System is a personal lap timing system that is extremely simple to use. This Spektrum Lap Timer Receiver works with the Spektrum Lap Timer Gates (SPMTG5000- sold separately) to send lap time information directly to your compatible Spektrum radio. With the Spektrum Lap Timer System, racers can upgrade their telemetry-equipped vehicle to assist with race practice, use it for local competitions, or just a head-to-head against friends.
Dimensions: 0.9 x 0.9 x 0.46 in (23 x 23 x 11.75mm)
Weight: 0.15 oz (4.22 g)
Input Voltage : 4V–8.4V