Innovation. Reliability. Customisation. For over 25 years, CEM, has been a leader in test & measuring instruments worldwide. Specialising in Infrared Thermometers, Digital Multimeters, Clamp-on Meters, Insulation Testers, Electrical Testers, Light Meters, Sound Level Meters, Thermo-Anemometers, Gas Detectors, Manometers and Various measuring instruments.