Invonics FA203S Single-Button Pendant Transmitter

The Inovonics FA203S is a single-button wireless pendant transmitter designed for personal emergency and security signaling through compatible Inovonics FA Series receivers. Operating on the 902-928 MHz frequency band with frequency-hopping spread-spectrum technology, it provides supervised wireless communication with an open-field range of up to 1 mile. The transmitter features a flashing transmission indicator LED, included breakaway-style beaded necklace chain, and replaceable 3V CR2 lithium battery with a typical service life of 3-5 years. It supports portable operation or optional fixed-position mounting.

Inovonics FA203S Single-Button Wireless Emergency Pendant Transmitter

The Inovonics FA203S Single-Button Pendant Transmitter is a compact wireless signaling device designed to initiate personal emergency, duress, or other programmed security notifications through compatible Inovonics wireless receiving equipment. Part of the Inovonics FA200 Series, the FA203S features a single push-button activation mechanism and a lightweight white enclosure that can be worn around the neck using the included beaded pendant chain. The transmitter provides an accessible method of initiating an alarm without requiring a user to reach a fixed wall-mounted keypad or emergency switch. Applications include personal emergency signaling, assisted-living facilities, commercial security systems, and portable duress notification, subject to the capabilities of the connected alarm controller. The device can also be mounted to a fixed surface when stationary signaling is preferred.

The FA203S operates over the 902-928 MHz North American wireless frequency band using frequency-hopping spread-spectrum communication to help maintain reliable signal transmission in environments subject to radio-frequency interference. Its communication architecture employs redundant transmissions and a 56-bit signaling protocol documented in the FA200 Series technical literature. The manufacturer specifies an open-field transmission range of up to 1 mile (1.6 kilometers), although actual range depends on receiver placement, building construction, obstructions, and local radio conditions. When the single activation button is pressed and held, the transmitter repeatedly sends alarm messages to the compatible receiver. An integrated transmission indicator LED flashes during signaling, and releasing the button sends an alarm restoration message to the receiving system. This functionality supports momentary emergency activation and monitored transmitter operation.

Designed for supervised wireless emergency signaling, the Inovonics FA203S can be enrolled into compatible FA Series receivers and security control panels using the manufacturer's programming procedure. Supported receiver families include FA400, FA404R, FA416R, and FA422 when installed with appropriate Bosch-compatible control equipment. Other legacy Inovonics FA receivers require confirmation of their specific programming and system compatibility. Inovonics recommends configuring the FA203S as a supervised transmitter, allowing the receiving system to monitor periodic check-in messages and identify communication faults according to the selected supervision settings. Programming data is retained in nonvolatile memory, preventing the need to re-enroll the transmitter after ordinary battery replacement. A programming header and internal reset button provide access to the manufacturer's setup and initialization functions.

The Inovonics FA203S is powered by one replaceable 3V lithium CR2 battery, identified by Inovonics as replacement part BAT608, with a typical operating life of 3-5 years under normal conditions. Its white housing measures approximately 3.0 inches long, 1.6 inches wide, and 0.72 inches deep and weighs approximately 1.7 ounces (48.2 grams). The transmitter operates in ambient temperatures from 32 F to 140 F (0 C to 60 C) and supports relative humidity up to 95%, non-condensing. The supplied beaded necklace chain incorporates a breakaway-style connector intended to separate under excessive tension, while compatible accessory options include replacement leather, metal, and plastic necklace cords. The FA203S is not weatherproof and should not be exposed to direct water immersion or used as a waterproof pendant. Inovonics recommends functional testing at least once per week to confirm communication with the receiving system. Its single-button operation, supervised signaling, and replaceable battery make the FA203S suitable for maintaining compatible legacy Inovonics emergency notification systems.