Napco Gemini Wireless Recessed Door/Window Sensor

The GEM-RTRANS is a recessed window/door transmitter designed for use in Napco GEM-series wireless systems. When used with the supplied magnet, the transmitter functions as a window/door sensor.

• For recessed use in both windows and doors
• Powerful wireless transmitter
• White housing, magnet and hole cover
• Field-replaceable 5 year battery
• Long-life 3V type DL123A lithium battery supplied

The GEM-RTRANS is powered by a 3-volt lithium battery, which will power the transmitter for up to 5 years. When battery voltage drops below normal, a low-battery report will be sent to the receiver (replace battery with a Duracell DL123A or Varta/Power-One CR123A only).

Each transmitter has a unique factory-programmed code (printed on the board and also on the transmitter tube) that distinguishes itself to the receiver.

NOTE: See control-panel instructions for entering this six-digit hexadecimal code and its checksum digit into the panel; be sure to enter all numbers and/or letters, including leading zeros, if any).