Sensors & Initiating Devices

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Photoelectric Sensors

Autocall photoelectric sensors help protect your people and operations while reducing the nuisance alarms that can cause disruption to your occupants and costly downtime for your business. Autocall TrueAlarm technology addresses a major causes of nuisance alarms — dirty sensors that result in overly sensitive devices.

Highlights:

Drift compensation: Sensors evaluate environmental data and help compensate for contamination to maintain detector performance and increase nuisance alarm immunity.
Automatic sensor cleaning indication: An alert on the Autocall panel warns system operators that a sensor is dirty and requires cleaning before its maximum drift compensation level has been reached.
Seven UL-approved sensitivity levels: Each sensor can be set at the optimum sensitivity for the environment it protects down to 0.2%. You can select sensitivity levels from one of the widest sensitivity ranges in the industry, providing notable differences in response time.
Programmable day/night operation: TrueAlert sensor operation can be set to automatically adjust based on time of day, fine-tuning protection and helping to reduce false alarms.
Peak value logging: You get a historical accounting of how close each sensor has come to its alarm point, allowing you to more accurately set your system for maximum sensitivity without triggering nuisance alarms.

Heat Detectors

Autocall TrueAlarm addressable heat sensors provide rate-compensated, fixed-temperature sensing, selectable with or without rate-of-rise temperature sensing. Due to its small thermal mass, the sensor accurately and quickly measures the local temperature for analysis at the control panel. Rate-of-rise temperature detection is selectable at the control panel. Fixed temperature sensing is independent of rate-of-rise sensing.

Highlights:

Fixed temperature or rate of rise operation.
Programmable day/night operation: TrueAlert sensor operation can be set to automatically adjust based on time of day, fine-tuning protection and helping to reduce false alarms.
Peak value logging: You get a historical accounting of how close each sensor has come to its alarm point, allowing you to more accurately set your system for maximum sensitivity without triggering nuisance alarms.

Multicriteria Detectors

Autocall TrueAlarm Multi-Sensor Devices combine the established performances of a TrueAlarm photoelectric smoke sensor with a TrueAlarm thermal sensor to provide both features in a single sensor/base assembly. Smoke and thermal activity are correlated to provide intelligent fire detection earlier than either activity alone.

Highlights:

Special point types enable the TrueAlarm Multi-Sensor Device to communicate smoke and heat analog sensing data
A software filtering process compensates for environmental factors (dust, dirt, etc.) and component aging, significantly reducing the probability of false or nuisance alarms.
Smoke and heat sensors in the same unit can work together or operate independently.

CO & Sounder Bases

The Autocall CO Sensor Base is the ideal solution for detecting toxic CO gases in critical areas, such as residential properties, dormitories, hotels, nursing homes, and assisted living facilities. The CO sensor base has a replaceable CO element that can either work independently as a toxic gas detector or be combined with a photo or heat sensor to provide a method to reduce unnecessary alarms from common sources such as steam from showers, aerosols from personal care products, cooking materials, dust, and exhaust fumes. The CO sensor base does not require a separate device to be mounted on the wall or ceiling. An Autocall smoke or heat sensor can plug into the base with the CO sensor element, saving mounting space as well as installation costs compared to using two independent units.

The Autocall Sounder Base is designed to meet NFPA low-frequency signaling requirements for unattended sleeping areas, the Autocall TrueAlarm 520Hz Sounder Base is a perfect solution for hospitality, education, and multi-occupancy residential applications. It offers an efficient, cost effective way to upgrade existing Autocall systems to NFPA compliance with minimal disruption.

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