Exergen D-Series Infrared Temperature Sensors are the only infrared instruments which can be certified as to NIST-tracable accuracy on real surfaces of unknown emissivity, while completely free of contact errors and heat sinking errors of contact devices.
Tower Status Indicator Lights are available in 3 type and 3 sizes of indicating lights. Shown here are the medium size that are most commonly used. The smallest are about the size of a 25 cent piece the medium are 52 mm in OD and the larger ones are 56 mm OD and have a prismed lens for long range visibility.
