The - TYREDOG TDA-4C 4 Wheel Tyre Pressure and Temperature monitoring system is amust havegadget foranyoff-roading or motoring enthusiasts. Stayalertedof any tyre abnormalities immediately,address the issue instantly and save yourself fromserious and irreparable damage. The - TYREDOGsystem is one of the most highly regarded offroad pieces of equipment that can save you from a trip ruining experience. Have complete confidence in your tyres knowing that you’re being guarded by a - TYREDOG. As little as 1 PSI change in pressure will be picked up by the - TYREDOG. Suitable for:Passenger Vehicles, 4×4, light commercial vans only. - This model is not suitable for monitoring Trailers or Caravans. - Please checkout - Caravan & Trailersection for products suitable for towing applications. The TDA-4C is our#1 sellerfor the offroad and touring enthusiast. Thousands of Aussies are protected by the - TYREDOGTyre Pressure Monitoring System. Have confidence knowing that the - TYREDOGisalways on guard. Key Features External Type Sensors simply screw on to the Valve stem. Sensors contain a Replaceable 3V CR1632 Battery. Low Sensor Battery Indicator. Audible / Visual Alerts when tyre pressure drops below / raises above user set level. Measure Pressure in PSI, KPA, BAR or Kg - CM. Measure Temperature in Celsius or Fahrenheit. LCD monitor powered by 2 x AAA batteries or Cig. lighter plug. Monitor between 0 and80 PSI D.I.Y. Easy installation. Anti-theft - Secure Fit Rings. 2 YEARWARRANTY Whats Included? 1 x LCDMonitor – (inc 2 x AAA Batteries) 1 × 12V Cig Plug for Monitor 4 x Heavy Duty External - Sensors (inc 4 x - CR1632 Batteries) 4 x Secure - Fit (Anti-theft) Rings 1 x LCD Mounting Bracket / Suction Cup Mount 1 x Hard Carry Case Owners Manual Sensor Specifications Frequency 433.92 Mhz Pressure Range 0-60 PSI (Reads Accurately up to 80PSI) Accuracy Pressure: 1 PSI – Temperature: 2 Deg - C Operating Voltage 3V (CR1632 Replaceable Battery) Operating Temperature -40 to 125Deg - C Operating Humidity 100% Battery Life Approx. 12 Months Dimensions 20.5mm Diameter / 20mm height Weight 10g(1)/ 13g(1) inc battery Monitor / Receiver Specifications Frequency 433.92 Mhz Operating Voltage 12V DC (via supplied cig. plug cable)or 2 x AAA batteries Battery Life Approx. 12 Months Operating Temperature -20 to 70Deg - C Dimensions 74mm(W) x 110mm(H) x 23mm(D) LCD Screen Size 40mm(W) x 60mm(H) Weight 100g