Versatile transmitter with antenna and base, specially designed for MX/Enduro. If used in Track & Field, it can be used as a START transmitter designed for sound start which covers up to 8 lanes. This set includes :• 1 PowerUnit• 1 SpaceUnit• 1 SpaceUnit Base *Free Drawstring Bag worth $35.00 The PowerUnit is a versatile beacon that can be quickly configured as a start, intermediate or end beacon. It emits a magnetic field automatically detected by the transponder as it passes. It is associated with an antenna flag, the SpaceUnit, which allows a wider detection area of up to 6 meters. • Weight: 700 gm• Dimensions: PowerUnit: 75 x 140 x 25 mm / SpaceUnit: Diameter 65 cm• Compatibility: FxChip / FxChip BLE• Transmitter with 2 modes: Tx / Mic• Transmitter with 3 codes: START / LAP / FINISH• Detection field: 6 meters• Minimum time between 2 transmitters: 0.7 second• Accuracy: 2/100 of a second• Battery: 3.7V 5AH LiPo rechargeable battery, automatic shutdown after 12h• Battery life: 50 hours• Water resistance: IP67• Operating temperatures: -20°C to +50°C For Track & Field Use PowerUnit is the start transmitter specially designed for sound start. Thanks to its microphone, it starts the transponder’s timer as soon as it detects a noisy sound nearby (such as a clap or a gunshot). It is associated with an antenna flag, the SpaceUnit, which provides a wider detection zone (6m), and lets trigger the start on up to 8 lanes simultaneously.