Tyre Sensor Solar TPMS Car Tire Pressure Alarm Monitor System 4 Wheel Pro Alert Features: Real time Monitor tire pressure can improve fuel efficiency, prolong tire life, increase traffic safety and monitor temperature. LCD displays tire pressure and temperature Visual and sound warning Air leakage warning, low pressure warning, high pressure warning High temperature warning, low power warning and no signal warning Solar power for normal use. Available USB charge for sunless day Difference between External and Internal sensor TPMS: External: Battery life 2 years, external screw lock. Easy DIY installation done in 10 minutes. Internal: Battery 5 years, Internal lock. Need to install at Car Service Shop. --- D02W- -External Version--- Specification: Type: Solar Wireless Car Tire Pressure Alarm Monitor System TPMS Working Frequency: 433.92MHz ± 50KHz Sensor Working Pressure: 0-60Psi ±2 Psi Sensor Transmit Frequency: 433.92MHz Sensor IP: IP67 Working Voltage: Sensor: 2.1-3.6V; Receiver: DC 3.7-5V Receiver Working Temp.: -2 ~ 75 °C / 28~167 °F Receiver Storage Temp.: -3~80 °C / 26~176 °F Sensor Working Temp.: -40~90 °C / -40~194 °F Sensor Storage Temp.: -40~100 °C / -40-212 °F Receiver Battery: Built-in 400mAh battery Receiver Charge Time: About 1h by DC 5V 1A Sensor Battery: Each sensor is powered by 1 x CR1632 lithium-ion battery (included) Certification: CE, FCC Sensor Size: 2.3 x 1.7cm / 0.8 x 0.7" (D x H) Display Size: 9.5 x 8 x 2.7cm / 3.7 x 3.1 x 1.1" (L x W x H) Net Weight: 0.14kg / 4.9oz Package: 1 x Solar powered Monitor 4 x External sensor 4 x Lock Nut 1 x Installation tool (same tool for replace battery) 1 x Stick pad 1 x English Manual / Online Manual --D02N--Internal Version-- Specification: Type: Solar Wireless Car Tire Pressure Alarm Monitor System TPMS Working Frequency: 433.92MHz ± 50KHz Sensor Working Pressure: 0-60Psi ± 2 Psi（Note: For car only ) Sensor Transmit Frequency: 433.92MHz Sensor IP: IP67 Working Voltage: Sensor: 2.1-3.6V; Receiver: DC 3.7-5V Receiver Working Temp.: -2 ~ 75 °C / 28~167 °F Receiver Storage Temp.: -3~80 °C / 26~176 °F Sensor Working Temp.: -40~90 °C / -40~194 °F Sensor Storage Temp.: -40~100 °C / -40-212 °F Receiver Battery: Built-in 400mAh battery Receiver Charge Time: About 1h by DC 5V 1A Sensor Battery: Included Certification: CE, FCC Sensor Size: 56 x 80 x 14mm Display Size: 95 x 80 x 27mm Net Weight: 0.14kg / 4.9oz Package: 1 x Solar powered receiver 4 x internal sensor (pre-assembled no need tool) 1 x English installation guide / Online Manual 1 x stick pad(pre-assembled) Features: Built in professional Chip Sensor from Freescale dedicated for car tire. Receiver Monitor is Solar Power, without occupying the USB or Cigarette lighter port. Sensor built in replaceable battery life 2 years and stable operation industrial standard. Dynamically monitor tire pressure, increase traffic safety. LCD screen displays tire pressure and tire temperature. Visual and sound warning, leakage warning, low pressure warning, high pressure warning, high temperature warning, sensor low power warning and no signal warning. Support screen sleep mode to safe car power ---S05N--Internal Version-- S05N Features: Built in professional Chip Sensor from Freescale dedicated for car tire. Receiver Monitor is Solar Power, without occupying the USB or Cigarette lighter port. Sensor built in super long battery life 5 years and stable operation industrial standard. Dynamically monitor tire pressure, increase traffic safety. LCD screen displays tire pressure and tire temperature. Visual and sound warning, leakage warning, low pressure warning, high pressure warning, high temperature warning, sensor low power warning and no signal warning. Support screen sleep mode to safe car powe Specification: Working Frequency: 433.92MHz ± 50Khz RF Signal Reception Sensitivity: -90dbm Monitor Pressure Range: 0~6.8 Bar (0~99SI) Monitor Temp. Range: -40 ~ 105 Centigrade Working Voltage: Sensor: 2.1-3.6V; Receiver: Solar Power or USB DC 5V Sensor Waterproof: IP67 Working Temp.: Sensor: -40~90 Centigrade; Receiver: -30~85 Centigrade; Storage Temp.: Sensor: -40~100 Centigrade; Receiver: -40~90 Centigrade; Sensor Battery: Each sensor is powered by 1*CR1632 lithium-ion battery (included) Battery Life: 5 years or above Sensor Size:5.2*2.3cm Receiver Size: 9.5*8.0cm Net Weight: 0.23kg / 8.7oz Package: 1*Receiver with Solar Power Panel and stick pad build in 4*Internal sensor, pre-assemble, no need tool 1*English operating manual