New improved Solar Colour with 4 nickel plated sensors – now available to use on aluminium valves stems! Sensors measure up to 99psi and have a replaceable CR1632 battery (new batteries included in the kit) – batteries last approximately 18 months to 2 years depending on usage. Simply screw the sensors in place of your dust caps, set a high and low pressure threshold and away you go. The Solar Colour is recommended for 4 wheeled rigid vehicles, such as cars, vans, motor-homes and horseboxes. The compact Solar powered monitor screen attaches to the dashboard with a small rubber pad (included) and has a sharp LCD colour display which gives you a loud, clear visual and audible alert if something starts to go wrong with your tyre pressure or temperature.