Tire Pressure Monitoring System Wireless Motorcycle TPMS Motor Bike Tyre Alarm Real Time Monitor Temperature for Two-Wheel Motorbike Bicycle 2 External Sensors TPMS Features Large color LCD screen than others,You can see the numbers more easily. Wireless transmission, no wires connection is needed,easy installation. Real time monitoring, individual tire data showed. Waterproof and dustproof. General of the Sensors Sensor size: 23mm * 15mm (WF)Pressure range: 0-8Bar / 0-116PSI Operating voltage: 2.1-3.3V Operating temperature: -40 - +105 Operating frequency: 433.92MHz 15MHz Battery Type: CR1632 button battery can be replaced. General of the Display Display size :48mm*48mm*27mm Operating frequency: 433.9215MHz Battery Type: Build on with lithium battery USB power line for charging.Charging: USB cable for changing and the charging port is adsorbable safe and convenient. It takes about 1 hour to fully charge. Package List 1 * Monitor. 1 * Holder. 1 * USB power line. 2 * External sensor. 2 * Anto-proof nuts. 2 * Battery key. 1 * Spanner. 1 * User Manual. Attention 1. Button is waterproof design,Please use force to press boot key or set key button to debug. 2. Short press -"to adjust the brightness of the display. 3. When the motorcycle is not started, the sensor is not triggered and it will not update data. Only when the motorcycle"'"s speed exceeds 15 miles per hour (24 kilometers per hour) will it update tire pressure data every 3 minutes. 4. The tire pressure accuracy of motorcycles is 1.45PSI, with an error of 0.1BAR. 5. This TPMS pressure is not suitable for BMW. Adjustable Bracket 1.Install it on the Right Size handle bar, in case it will break. 2.It can be installed on the handle bar of 16-22mm with all the silicone. 3.It can be installed on the handle bar of 22-26mm without the middle silicone. 4.It can be installed on the handle bar of 26-30mm without all the silicone. Replacing the sensor battery 1. Remove the anti-remover washer. 2. Fit the tool into the rim. 3. Turn the tool to loose the case. 4. Take the core out of case. 5. Replace the CR1632 battery. 6. Tighten the anti-remove washer.