alarm for 2 15 for sale, brand-new and used.

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FrSky DJT 2.4GHz Two Way Transmitter Tx Module for JRDescription: FrSky DJT 2.4GHz Two Way Transmitter Tx Module for JR The Two-way Radio System developed by FrSky provides an additional return link that would be used for monitoring the Rxa??s voltage, temperature, location, speed and so on. Features: - Advanced Continuous Channel Shifting Technology (ACCST SYSTEM) achieves high reliable link in interference rich environments. - Easy to bind and instant link-up.

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Extech 445814 Electronic Thermometer Hygrometer Features: Characteristics: Extech 445814 Electronic Thermometer Hygrometer Hygro-Thermometer Humidity Alerts with Dew Point Programmable Alarm warns of High Humidity Conditions %RH audible and visual alarm alerts when humidity excee

The Vista 21iP combines the versatility and security features of the Vista 20P with a built-in 7847i IP communicator. The panel supports a maximum of 48 zones, 2 partitions, and Honeywell offers GSM4G communicator specifically designed to snap directly onto the panel. The panel is connected to an AC transformer and a backup battery power supply.

Features: Adjustable lens position (0° or 10°) Selectable operational voltage (12V DC or 24V DC) Adjustable alarm signal duration Detects hand-sized objects for card access applications 2m X 1.5m (7ft X 5ft) Detects body-sized objects for security applications 6m X 4.5m (20ft X 15ft) Specification: Description Paradoor 460 Sensor Dual, low noise high response Detection speed 0.2m – 3.5m/second (0.6ft. – 11.5ft./second) Operating temperature -10°C

Alarm Two Beam Photoelectric Infrared Detector ABT-30m Alarm Two Beam Photoelectric Infrared Detector ABT-30m. Integrated design, installation brackets, the most convenient insta