DSC PG9945 Wireless PowerG Door/Window Contact with Auxiliary Input

The DSC PG9945 is a PowerG wireless door and window contact with an auxiliary wired input for residential and commercial intrusion detection systems. Featuring 912-919 MHz two-way wireless communication, 128-bit AES encryption, and an internal magnetic reed switch, it monitors protected openings and supports an additional hardwired contact as a separate alarm zone. The PG9945 operates on a 3V CR123A lithium battery with up to 8 years of typical battery life and is compatible with supported DSC PowerSeries Neo, PowerSeries Pro, and Qolsys security panels.

DSC PG9945 PowerG Wireless Door/Window Contact with Auxiliary Input

The DSC PG9945 PowerG Wireless Door and Window Contact provides supervised perimeter intrusion detection for residential properties, commercial buildings, offices, and other protected facilities. Manufactured by DSC, a Johnson Controls security brand, the PG9945 combines an internal magnetic reed switch and a configurable auxiliary wired input in one compact wireless transmitter. The internal contact detects when a protected door or window opens or closes, while the auxiliary input allows an additional conventional contact to communicate through the same PowerG device. The auxiliary input can be enrolled as a separate alarm zone, enabling independent monitoring of two protected points when supported by the connected control panel. Its white enclosure measures approximately 3.19 inches high by 1.25 inches wide by 1 inch deep, supporting installation on compatible door and window frames.

The PG9945 incorporates PowerG frequency-hopping spread spectrum communication, two-way wireless signaling, and 128-bit AES encryption to provide secure communication with compatible alarm receivers. The North American PG9945 operates within the 912-919 MHz frequency band and uses adaptive transmission power and synchronized wireless communication to maintain reliable system connectivity. Device supervision messages are transmitted approximately every four minutes, while low-battery, alarm, and tamper conditions are reported to the security control panel. An integrated LED provides visual signal-strength feedback during installation and placement testing. The contact is powered by one 3V CR123A lithium battery, with an expected service life of up to eight years under typical operating conditions. The device also includes cover and wall tamper detection to identify unauthorized opening or removal.

The DSC PG9945 auxiliary input supports normally open (NO), normally closed (NC), and single end-of-line (EOL) supervised contact configurations, allowing installers to connect compatible hardwired magnetic contacts or other dry-contact intrusion devices. End-of-line supervision uses a 47K-ohm resistor, with an auxiliary input cable length of up to 32.8 feet (10 meters) using 22 AWG wiring. The internal magnetic contact should be installed with the transmitter secured to the stationary door or window frame and the magnet mounted to the moving surface. DSC recommends a maximum installation gap of approximately 0.24 inches (6 mm) between the magnet and transmitter. The PG9945 supports compatible DSC PowerSeries Neo and PowerSeries Pro control panels, along with supported Qolsys PowerG-equipped systems. Compatible North American wireless receivers include the HSM2HOST9, HS2LCDRF(P)9, HS2ICNRF(P)9, and PG9920, with final compatibility dependent on the control panel and receiver configuration.

The PG9945 wireless security contact measures approximately 81 x 34 x 25 mm and weighs 1.9 ounces (53 grams), including its battery. Its specified operating temperature range is 14 F to 131 F (-10 C to 55 C), with relative humidity up to 93% non-condensing, although UL/ULC environmental verification covers 32 F to 120 F (0 C to 49 C). The detector is intended for indoor, nonhazardous installations and supports both adhesive and screw mounting, subject to applicable installation requirements. The North American PG9945 is UL/ULC listed for applicable burglary alarm applications, including requirements under UL 634 and ULC/ORD-C634. Its PowerG communication architecture also supports compatibility with systems designed for supervised wireless commercial security installations. The PG9945 features a white enclosure, while the PG9945BR provides equivalent functionality in a brown housing. Unlike a standard magnetic contact without an auxiliary input, the PG9945 allows an additional wired detection point to be incorporated into a compatible wireless intrusion system, reducing the need for a separate transmitter at supported openings.