Twinflex ASD Smoke and Heat Sensor Complete With Base & SounderThe Twinflex ASD Smoke and Heat Sensor is an advanced addressable detector designed to deliver high performance fire detection with the convenience of an integrated sounder and base. Combining a photoelectric smoke sensor and a thermistor heat sensor, the unit can be configured to detect smoke, heat, or bothmaking it ideal for a wide variety of environments. With seven programmable sounder tones and adjustable volume levels (65dB(A), 80dB(A), or