An Ecoservice car park gas detection system comprises of any number of carbon monoxide car park gas detectors. The car park gas concentration signals are sent from the car park gas detectors and the levels from all the car park gas detectors are displayed locally on the control unit. The latest regulations (2012) call for variable extraction control and minimum flow rates. The Ecoservice car park system allows you to control your fans so they will comply with all the requirements of the car park gas detection standard. The car park carbon monoxide sensors are designed to be unobtrusive, simple to install and calibrate.