tire pressure monitoring system TM-509A+SF

tire pressure monitoring system TM-509A+SF Tire pressure monitoring system Increase safety, tire life, fuel economy The wireless and real-time tire pressure monitoring system for passenger car Feature Full time, real time 100% wireless transmitting Sensor transmit pressure&temperature data every 5 minutes when the vehicle is in motion Display pressure or temperature of 4 tires simultaneously Visible and audible alert for high pressure/low pressure/high temperature/rapid drop in pressure Fast leakage alert SENSOR SPECIFICATIONS Operation temperature -40°C to +80°C Storage temperature -40°C to +85°C Press range 0-3.5 bar, 0-50psi Pressure accuracy ±0.1bar or 1.5psi Temperature accuracy ±3°C Transmission power < 10dBm Transmission frequency 433.92MHz Battery life(CR2450) 3yrs,replaceable Size(L*W*H) 60mm*33.5mm*21mm Weight 43g MONITOR SPECIFICATION Operation temperature -20°C to 80°C Storage temperature -30°Cto 85°C Charger input voltage DC 8V-30V Frequency 433.92MHz Size(L*W*H) 85mm*25mm*25mm Weight 42g