Replacement Speedometer & Heart Rate Monitor for Stationary Exercise Bikes – Compatible with 3.5mm Jack (1/8″ TS Sleeve Cable)

Designed for compatibility with most stationary and spin bikes that use a 3.5mm headphone-style jack for speed and pulse tracking. Compatible with major brands like Sunny, PooBoo, L-Now, Snode, Exerpeutic, Yosuda, and many more—covering approximately 90% of Amazon and domestic brands. Important Accuracy Information: this monitor estimates speed and distance based on cadence (pedal RPM) rather than actual mileage. Since stationary bikes do NOT measure resistance levels, the displayed KM reading is a calculated estimate rather than a precise measurement. Unlike real bikes with gears, stationary bikes cannot determine actual distance traveled. All data is gussed and based on cadence (frequency of pedals) 📌 Think of this as a cadence tracker that helps monitor pedaling speed over time, rather than an exact speedometer or odometer.
Standard 3.5mm Connection: Plugs into 3.5mm female jacks on the back of the monitor. Some bikes with female jacks may require adapters (not included).
Heart Rate Monitoring (Optional): Works with bikes featuring built-in pulse sensors (typically two metal plates on the handlebars). Certain models may require re-wiring for compatibility. Disclaimer: it will never be accurate as your Apple watches.
Battery Requirement: customers need to get 2 x AAA batteries (not included)
Important Accuracy Information: this monitor estimates speed and distance based on cadence (pedal RPM) rather than actual mileage. Since stationary bikes do NOT measure resistance levels, the displayed KM reading is a calculated estimate rather than a precise measurement. Unlike real bikes with gears, stationary bikes cannot determine actual distance traveled. All data is gussed and based on cadence (frequency of pedals)