Replacing the Batteries – Smoke and Carbon Monoxide Detectors

NOTE:  Make sure that your security system is disarmed prior to replacing the batteries in any sensor.

Choose your device below

Honeywell Wireless Smoke/CO Combo Sensor

• Remove the detector from the mounting base by turning counter clockwise (Fig 1)
• Remove old batteries and replace them with new Panasonic CR123A Lithium batteries ONLY.   (Fig 2 and 3)
  • Note:  All 4 batteries must be replaced at the same time
• Wait ten (10) seconds before re-installing onto mounting plate (Fig 4)
• Reattach the detector to the mounting base by turning clock-wise (Fig 5)

 
EcoLink Wireless Audio Detector (Firefighter)

• Remove the top cover of the sensor by pressing the button located on the side and lifting off the top
  • Note:  Some models have 2 Phillips head screws on the bottom.  Be sure to check your sensor and remove screws if necessary.
• Remove existing battery and replace with a Panasonic CR123A Lithium battery.  Be sure to observe proper polarity
• Replace the sensor cover and remount the device

SMC SMCMT10-Z Smoke Detector (Legacy)

• Remove the detector from the mounting bracket by twisting the detector counter clock-wise
• Slide the battery compartment cover away from the smoke detector to unsnap it and lift it off
• Remove existing batteries and replace with new CR123A batteries
• Replace the smoke detector to the mounting base as follows:
• • Line up the raised alignment tab on the lip of the smoke detector with the arrow on the mounting base
  • Insert the smoke detector into the base and turn clockwise about 15 degrees until it snaps into place.
    • Note:  The detector cannot be reinstalled on the base if there are no batteries

SMC SMCCO02-Z CO Detector (Legacy)

• Remove the detector from the mounting bracket by sliding the detector to the side
• Remove the existing batteries and replace with three (3) new AA Alkaline batteries
• Replace the detector on the mounting bracket
  • Note:  The detector cannot be reinstalled onto the mounting bracket without batteries