【Solar Powered & USB Charging】: B-Qtech intelligent wireless T670 tire pressure monitoring system with 2 charging ways which ensure the tpms will work continuously, can be fast-charged without occupying the car cigarette lighter socket, rechargeable lithium battery to get electricity can increase the monitor life. Solar panels provide continuous power on sunny days, saying goodbye to traditional wiring. Press the “▼” button of the standby interface to adjust the brightness.【Suitable for 4-6 tires】: Taking into account the needs of users in actual use, our rv tire pressure monitoring system is designed with 4/6 tire switching option, which can be used on a variety of models. Real-time monitoring the temperature and pressure with high degree accuracy and can automatically change the corresponding data, LCD display mode ensure the high resolution ratio and guarantee the high-definition and no splash screen condition.【5 Types Of Alarms And User-set Alarm Values】: B-Qtech tire pressure monitoring system provides five alarming modes (including fast leak alarm, high/low-pressure alarm, high-temperature alarm, and sensor low power alarm). Users can DIY set the pressure and temperature alarm values. Please unscrew the sensor to match again or start the car for meters when one of the sensors’ values can’t be shown up at the first time.【Precise Sensor Connection】T670 rv tire monitor system adopts Freescale chip design for better and more stable and accurate signal transmission. Light weight design for sensor for easy installation. Support tire position exchange function. IP5K4K Sensor waterproof grade can avoid various harsh climate. ( Optional purchase repeater which is suitable for strengthening the signal when the distance exceeds 6 meters and the signal is weakened to ensure the reliability of the received signal.)【Balance Tire Pressure】: T670 tire pressure temperature monitoring system supports fuel-saving, air leakage forseeing and tire wearout reducing and balance tire pressure which will ensure safety driving. Equipped with RF wireless technology can auto-alarm when tire pressure and temperature is abnormal. With two pressure unit "PSI,BAR " and two temperature unit "℃,℉" for option. You can always contact us for service if you encounter any problems in setting up and using it. Product Description Real-time monitoring of all tire pressure, temperature, air leaks, and timely alarm in abnormal situations. Solar Power + USB Cable Built-in rechargeable lithium battery, two charging methods can make the tpms continue to work in any weather conditions. 4 or 6 Tires TPMS To Choose Taking into account the needs of users, after research and development, a four-wheel or six-wheel switch function has been introduced, which can monitor 4 tires or 6 tires at the same time, for a variety of models such as RVs and trailers. Manually Adjust The Brightness In the standby interface, press the down button to adjust the brightness. 3 levels of brightness can be adjusted, provides manual brightness adjustment in various light situations. Easy Installation and Setup External sensor, users can install it by themselves without professional help. Lightweight sensor, anti-slip, and anti-theft. Self-replaceable sensor battery, CR1632. 1. Please read the product manual before installation. If you have operation problems, you can view the operation video on the homepage. 2. Please turn on the monitor first, and then install the sensor. Otherwise there is no display. Or the tire pressure will be displayed after 5-10 minutes' driving. 3. The sensor size of this TPMS is suitable for tires with a valve diameter of about 7-8mm. 4. Please use DC 5V adapter to charge the TPMS! Displayer Parameter Working Temperature:(-20℃-80℃)Storage Temperature:(-30℃-85℃)Input Voltage:DC5VTransmitting Frequency:433.92MHzSize( L*W*H )mm:119*34*24mm Sensor Parameter Working Temperature:(-40℃-105℃)Storage Temperature:(-40℃-120℃)Pressure Range:0-199psi（0-13.7bar）Pressure Precision:±1.5PSI（±0.1bar）Temperature Precision:±3℃Transmitting Power: