Description
Spark-RPM
The only RPM sensor that truly measures directly from the ignition
NEW: SparkRPM – Accurate RPM sensing directly from the ignition
With SparkRPM, Smoke-EL introduces a compact and highly reliable RPM sensor for electronic ignition systems with tachometer output.
Just connect it – the sensor automatically detects the telemetry protocol and sends real-time data straight to your RC system.
Key features:
Measurement range 100–16,000 rpm Galvanically isolated – no interference with your radio system Powered directly by the receiver Transmits current RPM, maximum RPM, and engine run time Supports PowerBox P²Bus, Jeti EX-Bus & Spektrum X-Bus Ultra-compact & lightweight (only 6 g)Spark-RPM is the first telemetry sensor that reads engine RPM directly from the tachometer output of electronic ignition systems.
No magnets. No Hall sensors. No improvised solutions.
No magnets. No Hall sensors. No improvised solutions.
True real-time RPM
Galvanically isolated – interference-free
Ultra-compact and only 6 g
RPM. Max RPM. Runtime.
Spark-RPM transmits three essential values directly to your transmitter:
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RPM – current engine speed
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Max RPM – highest RPM per engine run
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Runtime – actual engine run time
Ideal for in-flight engine monitoring, ground setup and tuning, and documenting engine load.
Plug & Play Telemetry
Spark-RPM automatically detects the telemetry system and works with:
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PowerBox P²Bus
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Jeti EX-Bus
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Spektrum X-BUS
Max RPM alarms can be set directly in the transmitter.
Direct Connection to the Ignition
Spark-RPM uses the existing tachometer signal from the ignition system.
The signal line is galvanically isolated from the receiver to reliably prevent interference.
The signal line is galvanically isolated from the receiver to reliably prevent interference.
➡️ more precise than magnet-based sensors
➡️ no moving parts
➡️ no influence on the ignition system
➡️ no moving parts
➡️ no influence on the ignition system
Extremely Compact
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Measure range: 0 – 16,000 RPM
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Weight: only 6 g
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Operating voltage: 5 – 12 V
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Dimensions: 32 × 18 × 10 mm
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Ignition battery: 7.4 V
3 Questions – 3 AnswersDoes Spark-RPM work without telemetry?
No – Spark-RPM is a telemetry sensor and requires a BUS-capable system.Which ignition systems is Spark-RPM compatible with?
Spark-RPM works with all electronic ignition systems that provide a 3-pin tachometer output.Do I need any additional modules?
No – Spark-RPM connects directly and transmits data via PowerBox, Jeti, or Spektrum.