The Potter Amseco PS-24H is a combination photoelectric smoke and heat detector that utilizes two bi-colored LED's for status indication.
In a normal standby condition, the LED's flash green every 3 seconds. When the detector drifts outside the UL listed sensitivity window, the LED's will flash red every 3 seconds. When the detector senses smoke and goes into alarm, the status LED's will latch on red.
The PS-24H can be used in all areas where Photoelectric Smoke Detectors are required. The wide range smoke chamber makes the PS-24 well suited for fires ranging from smoldering to flaming fires.