The Tyco 801PHEX (Model 516.800.530.P) is an intrinsically safe optical Multisensor, which is able to detect smoke and heat.

Tyco 801PHex Multisensor

The Tyco 801PHex is also known as:
801 PH EX

The 801PHEx Intrinsically Safe Optical Smoke & Heat Detector plugs into a 5BEx base. The detector is designed to transmit to a remote MX fire controller, digital signals which represent the status of the optical smoke and heat elements of the detector. Software within the controller interprets the returned optical and heat values to raise an alarm or other appropriate response according to the type of programmed configuration. the mode of the detector may be: Optical Smoke only detector (High/ Normal / Low) HPO smoke detector (Sensitivity High,Normal,Low) Heat Only Rate of Rise (A 1R) detector (no sensitivity selection) Optical (sensitivity High,Normal,Low) Combined with heat fixed temperature. Part Number 516.800.530