Napco GEMC-WL-CO — Gemini Wireless Carbon Monoxide Detector Specifications

Product specification sheet for the Napco GEMC-WL-CO Gemini Wireless Carbon Monoxide Detector — a supervised wireless CO detector for residential, motel, hotel, and commercial/industrial system applications.

Description

The GEMC-WL-CO is a high-quality wireless carbon monoxide detector with a built-in supervised digitally-coded radio transmitter. It's compatible with Napco's GEMC Commercial Grade Wireless Receivers (GEMC-RECV), which monitor alarms, restores, low battery, tamper, and status. The GEMC-WL-CO is also UL Listed for residential applications using the GEM-RECV series Wireless Receivers.

During normal operation (standby mode, within sensitivity limits), the green LED flashes once every 10 seconds. When CO is detected, the unit sounds a local alarm and the transmitter sends an alarm signal to the supervised receiver, repeated as long as CO is present. A restore report is sent once the CO detection chamber clears. Supervision status reports are sent every minute (200-second commercial supervision, 4-hour residential supervision).

Features

• 5⅜" diameter, approximately 2" profile
• Powered by one 3V lithium battery (supplied); lasts at least one year
• Powerful 85dB alarm sounder generating the ANSI S3.41 temporal 4 pattern when in alarm
• Integral supervised digitally-coded radio transmitter — no coding switches; each transmitter gets a unique factory-assigned identification code
• Solid-state electronics — won't leak or dry up; no orientation issues
• Smart microprocessor optimizes life safety and detection accuracy
• Active self-test and LED status indicators
• Mountable on wall or ceiling (hardware included). Note: mounting on foil-backed wallpaper is NOT recommended — it reduces radio range
• Connects to a GEMC-RECV Wireless Receiver zone and/or NAC circuit designated for CO alarm use only
• UL2075 Listed; tested to meet UL 2034 CO response requirements
• Contains an electrochemical CO sensor assembly coupled with a wireless transmitter that sends alarm, trouble, end-of-life (~6 years after manufacture), tamper, and low battery messages to the control panel

IMPORTANT: This detector must be tested and maintained regularly following NFPA 720 requirements.

Low Battery Detection

The detector checks for a low battery at least every 60 seconds and transmits status to the receiver with the normal check-in. If a low battery is detected, the transmitter sends a low battery message to the control panel, which beeps and displays the detector's zone number. After 7 days, the detector's horn will "chirp" about every 45 seconds for up to 30 days. Pressing the TEST button during this time will silence the chirps for 12 hours if no other trouble conditions exist. Napco strongly recommends replacing the battery BEFORE the chirps begin.

CO Levels and Time to Alarm

Specifications

Electrical Ratings

• Input Power: Powered by a 3-volt lithium battery; use Duracell DL123A, Varta CR123A, Panasonic CR123A, or Sanyo CR123A
• Operating Frequency: 319.5MHz
• RF Range: Up to 500 feet depending on installation environment
• Dimensions (W×L×D): 5⅜" x 5⅜" x 2⅛" (13.7 x 13.7 x 5.4cm)

Operating Environment

• Temperature: 32°F to 122°F (0°C to 49°C)
• Relative Humidity: 15% – 95% RH

Regulatory Information

• Manufacturer: Napco Security Technologies, Inc., 333 Bayview Avenue, Amityville, NY 11701
• UL Rating: Evaluated to the CO detector sensitivity limits of UL 2075 / UL 2034
• Environmental Class: Indoor, per Operating Environment specifications above

Specifications are subject to change without prior notice.