In R/C racing, details matter—and consistency wins races. The MYLAPS RC4 3-Wire Personal Transponder is more than just a lap counter. Designed for serious racers, it delivers ultra-accurate lap timing plus valuable telemetry data to help you fine-tune your setup and shave seconds off your runs.
Direct-powered from your receiver, the RC4 3-Wire eliminates the need for charging while providing reliable performance race after race. Compatible with RC4 timing systems only, this transponder is trusted worldwide for both indoor and outdoor on-road and off-road racing.
How It Works
Mounted on your car, the transponder transmits a unique signal detected by the track’s RC4 timing loop. Lap times, position, and performance data are recorded with extreme precision. When the track is connected online, your data is automatically uploaded to your personal MYLAPS account, where you can review lap times, connected voltage, and ambient car temperature.
Features
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Direct-powered 3-wire design (no charging required)
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Provides lap timing plus telemetry data
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Tracks connected voltage and ambient car temperature
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Shock-proof and mud-proof construction
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Suitable for indoor & outdoor on-road and off-road racing
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Can also be used for model boat racing
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Quick-change mounting holder included
Specifications
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Max Speed: 120 km/h (75 mph)
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Operating Voltage: 3.0 – 16 VDC
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Power Consumption: 14mA @ 6V
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Temperature Range: 0 – 50°C (32 – 122°F)
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Dimensions: 16 × 19 × 6mm
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Weight (with holder): 4.7g
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Signal Transfer: Magnetic induction
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Connection: Standard servo plug (CH3 or battery port)
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Wire Insulation: Aerospace / MIL-spec high-temp PTFE
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Compatibility: RC4 Timing Systems ONLY
Includes
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(1) RC4 “3-Wire” Personal Transponder
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(1) Quick-Change Holder
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(1) MYLAPS Sticker
Important Notes
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Mount holder no higher than 15cm (6 inches) above ground
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Powered directly from a free receiver channel
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Not compatible with older MYLAPS decoder systems
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Always verify compatibility with your local track
