The Test Lamp (RS-TL02) is designed to work in association with the Spark Detectors (RS-SD02). The Test Lamp provides a function check to ensure the cleanliness of the Spark Detector lenses by emitting high infrared radiation into ducting or pneumatic conveying lines across from the spark detectors to simulate a spark or glowing ember in the line. The Test Lamp (RS-TL02) is FM Approved and ATEX Certified.