2251TMBPI
"Acclimate" multi-criteria detector with photoelectric smoke sensor and 63 °C fixed (static) temperature thermistor heat sensor
5251BPI
Analogue addressable heat detector with 57 °C fixed (static) temperature threshold
5251RBPI
Analogue addressable rate of temperature rise heat detector with 57 °C fixed (static) temperature threshold
5251RB-WP
Weatherproof AA rate of temperature rise heat detector with 57 °C fixed (static) temperature threshold, including special base
5251B-WP
Weatherproof analogue addressable heat detector with 57 °C fixed (static) temperature threshold, including special base
7251
Highly sensitive (laser-based) photoelectric smoke detector