Feature: IP65 waterproof, allowing you to drive in the rain.Large-capacity built-in metal lithium battery.Accurately monitor tire preure all the way.High precision LCD screen with time display.High volume alarm sound warning.Long receiving distance, stable signal. Specification: ReceiverWorking temperature: -20~+80Storage temperature: -30~+85Power-on voltage: DC 5VFrequency: 433.92MHz20.00MHz Sensor Working temperature: -20~+80Storage temperature: -30~+85Preure range: 0~6.6barPreure precision: +/-0.1barTemperature accurancy: +/-3Transmitting power: Bracket installation instructions: 1. Unscrew the 2 screws, put on your motorcycle/electric bike/bicycle and tighten;2. Place the mounting head of the bracket toward the position you need, and confirm that the bracket is firm;3. Install the tire preure receiver on the bracket, tighten it and then lock it; use the ball head to rotate the tuning knob to move the joint to adjust the appropriate angle. The parcel include: 1 X Receiver1 X USB Cable1 X Bracket2 X Sensors1 Set X Part