Profile: Envin Scientific Ltd specializes in supplying gas sensors and optical filters. Mela capacitive sensing element is used for the measurement of relative humidity and temperature that can be used in air conditioning systems, building management control and ventilation technology. This range of product also offers current or voltage output duct and room sensors with LED displays and control. We also have a range of electronic controllers for humidity and temperature monitoring along with a range of hygrostats for humidity monitoring for both rooms and ducts. Optical filters are used in a multitude of applications where it is necessary to select certain wavelengths of light whilst rejecting others.