ANWETECH AT-SH201 is a 2-wire combined smoke and heat detector designed for early fire detection. It integrates photoelectric smoke sensing and fixed temperature heat detection in one unit, offering reliable alarm performance for houses, hotels, markets, banks, factories and warehouses.
The ANWETECH AT-SH201 is a 2-wire combined smoke and heat detector designed to detect both visible smoke and abnormal temperature rise at an early stage of fire. It combines a photoelectric smoke sensor and a heat sensor in one compact ceiling-mounted unit, providing more comprehensive fire detection than a single-function detector.
The detector adopts MCU intelligent signal processing together with SMT design, helping improve stability, reduce false alarms and ensure long-term reliability. Its structure is dust-proof, insect-resistant and resistant to ambient light interference, making it suitable for a wide range of indoor environments.
When smoke concentration reaches the alarm threshold, or when the ambient temperature rises above the fixed heat alarm point, the detector enters alarm condition and the red LED lights up. The AT-SH201 is ideal for residential, commercial and light industrial fire alarm applications where a 2-wire combined smoke and heat detector is required.
Operating voltage: DC9V–48V
Static current: <50uA
Alarm current: ≤50mA
Alarm temperature: 57°C ±3°C
Alarm indication: Red LED light
Operating temperature: -10°C to +50°C
Environmental humidity: 0%–95% RH, non-condensing
Alarm output: Remote LED
Sensitivity: 0.065dB/m (±0.15dB/m)
Standard: EN54-7 / UL268
Dimensions: 103 × 53 mm
2-wire version:
