Echowell Ui25 Wireless Cycle Computer 2 sensors: Speed and Cadence 28 functionsCharacteristics: High-Frequency: 27MHz Digital Data Transmission Cost-effective high-frequency digital solution based on low power consumption It ensures no interference and crosstalk. Programmable display (for current speed, cadence) Adjustable LCD brightness Auto Start/ Stop Low battery indicator Waterproof Functions: Current Speed Average Speed Maximum Speed Trip Distance Odometer Total Odometer (Bike1+Bike2) Trip Riding Time Total Riding Time Total Riding Time (Bike1+Bike2) Maintenance Speed Pace Current Cadence (RPM) Average Cadence (RPM) Maximum Cadence (RPM) Trip Pedal Revolution RPM Limit Total Pedal Revolution Total Pedal Revolution (Bike1+Bike2) Cadence (RPM) Limit Pacer Trip Co2 Funtions:CO2 Saving Total CO2 Saving Total CO2 Saving (Bike1+Bike2)Temperature Functions:Current Temperature Maximum Temperature Minimum TemperatureOthers:12/24 Hour Clock Calendar Bike1/ Bike 2 Auto Detection