D4S | 4 WIRE SENSOR | System Sensor

4 WIRE SENSORThe System Sensor D4S is a 4-wire smoke detector designed for use in commercial and industrial applications. It features a photoelectric sensor that can detect smoke particles as small as 0.01 microns, making it ideal for detecting early-stage fires. The D4S also has a built-in sounder that can generate up to 95dB of sound, ensuring that occupants are alerted to a fire even if they are not in the immediate vicinity. The D4S is easy to install and maintain. It can be mounted on a wall or ceiling, and it has a built-in test switch that allows you to test the sensor's functionality without having to remove it from its mounting. The D4S is also compatible with a wide range of fire alarm systems, making it a versatile choice for any application. Features: - Photoelectric sensor for early-stage fire detection - Built-in sounder for audible alerts - Easy to install and maintain - Compatible with a wide range of fire alarm systems Applications: - Commercial buildings - Industrial facilities - Schools - Hospitals - Warehouses Our HVAC supply store - We offer the best prices and fast shipping for your products!