Up to eight ANN-80s may be connected to the ANN-BUS of each FACP. No programming is required, which saves time during system commissioning.

9V BATTERY OPERATED PHOTOELECTRIC SMOKE ALARM WITH TEST BUTTON, TAMPER RESIST LOCKING PIN, LOW BATTERY INDICATOR, TWIST-OFF MOUNTING, AND RED LED POWER INDACATOR.

Ideal for Fire and Security Alarm System Maintenance The ductchecker and dbchecker from SDI are ideal for the maintenance of fire and security alarm systems. The ductchecker is an easy-to-use tool perfect for testing duct detectors to ensure they sample airstream properly, according to manufacturer’s instructions and required by the National Fire Protection Association. This portable, battery operated device includes hard case and sampling tube plugs, making it convenient for initial and semiannual duct detector testing.
• Simple to Use
• Portable
• Battery Operated
• Meets NFPA 72 Requirements
• Perfect for Annual and Semi-Annual Testing
• Easy to Read Display

"The Fenwal Detect-A-Fire Fire Detectors are the ""heart"" of many fire protection systems. These highly reliable devices have been a standard of the industry for over 45 years. Many thousands of these units are now in use controlling the release of extinguishants such as clean agents, CO2, water, or dry chemicals. In some systems the Detect-A-Fire is used as a fire alarm device, to sense overheat or fire and alert personnel. In other systems it is used as a release device, to sense fire and actuate fire attack systems. The Fenwal Detect-A-Fire has met with wide acceptance because it is designed with ""rate compensation."" Rate compensation provides a unique advantage over both fixed temperature and rate-of-rise types of detectors because only the Detect-A-Fire unit accurately senses the surrounding air temperature regardless of the fire growth rate. At precisely the predetermined danger point, the system is activated.
The secret of the unit's sensitivity is in the design. The outer shell is made of a rapidly expanding alloy which closely follows changes in surrounding air temperature. The inner struts are made of a lower expanding alloy. Designed to resist thermal energy absorption and sealed inside the shell, the struts follow temperature changes more slowly. A slow rate fire will heat the shell and struts together. At the ""set point,"" the unit will trigger. A transient rush of warm air up to 40F/min. may expand the shell, but not enough to trigger the unit, virtually eliminating false alarms. If a fast rate fire starts, the shell will expand rapidly. The struts will close and the unit will trigger. The faster the fire rate of growth, the sooner the Detect-A-Fire will react. Fenwal Detect-A-Fire units are not position sensitive. Horizontal and vertical detectors refer to the most common mounting configuration for that unit. Each type can be mounted either horizontally or vertically depending on the application and installation requirements

The Fenwal Models THD-7052 and THD-7053 are thermistor- based electronic Heat Detectors with a 135Deg F (57Deg C) Fixed Temperature set point. In addition, the Model THD-7052 has a Rate-Of-Rise of temperature detection feature rated at 15Deg F (8.3Deg C) per minute. Both detectors have advanced solid-state, low-voltage, surface- mount circuitry and are designed for 2-Wire and 4- Wire installation using the appropriate Detector base. The detectors are designed for Open Area Protection (UL 521) and may be installed in systems intended for Releasing Device Service through use of a compatible Fire Alarm Control Panel Two Red Light Emitting Diodes are located diametrically opposite each other so as to allow 360-degree viewing. Both LEDs continuously indicate the operating condition of the Detector. During standby, the LEDs flash once every six seconds. During alarm, both LEDs light steady at full brilliance. A double flash every six seconds indicates a detector with a thermistor trouble. An optional base is available to provide remote LED function. A unique gated output circuit design provides improved stability and transient suppression. Special signal processing techniques verify the presence of smoke before the detector will alarm. The detector head is installed into the base with a simple twist-lock action. A locking feature is provided for vandal resistant security. Detector base options are available to provide for auxiliary test, indication and/or control functions Optional bases are available for supplementary 2-wire or 4-wire relay functions. The Model THD-705x Heat Detectors may be interchanged with other Fenwal Series CPD- 705X Ionization and Series PSD-715X Photoelectric Smoke Detectors when using multifunction base configuration