Optical smoke detector
Context Plus Battery operated optical smoke detector, BSI kitemarked, complete with 9V zinc carbon battery
The Context UL-Plus Ionisation smoke detector with Discovery communication Protocol uses a low activity radioactive foil to detect fires by irradiatin
The Context UL-Plus ionisation smoke detector HEAD ONLY (Xpert card Style- Discovery Protocol)- Flashing LED Option- UL LISTED is part of the Analogue Addressable Fire Detectors range from Context Plus, supplied and supported by SPS. The Context UL-Plus Ionisation smoke detector with Discovery communication Protocol uses a low activity radioactive foil to detect fires by irradiating the air in the smoke chambers and causing a current flow. If smoke enters the chamber, the current flow is reduced leading to an alarm.