First Alert CM2837 manual First Alert OneLink Competitive Comparison Summary

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Pull out battery drawer makes it easier to replace the batteries. No need to remove from wall or ceiling. The competition’s battery access on the back of the unit.

The SA520B hardwired alarm has the same contractor preferred features like a AC power quick connector, large opening in mounting bracket for easy access to wiring, keyhole slots in the bracket to eliminate the need to completely remove the electrical box screws to install the bracket and a universal bracket that fits any standard electrical box up to 4” in size.

All smoke alarms have a 10-year limited warranty and CO’s or Smoke/CO combos have a 5-year limited warranty.

First Alert® OneLink® Competitive Comparison Summary

Feature

Competitive Wireless

 

SKU Lineup

 

Smoke and CO alarms

 

Smoke alarms only

 

 

(4 SKUS)

 

(2 SKUS)

 

 

 

 

 

Smoke-Sensing Technology

 

Photoelectric

 

Ionization

 

Patented Optipath 360Smoke

 

Yes

 

No

 

Technology

 

 

 

 

 

Electrochemical CO Sensor

 

Yes

 

No CO Alarm

 

Pullout Battery Drawer

 

Yes

 

No

 

 

 

 

 

 

 

Voice With Programmable

 

Yes (First Alert Exclusive)

 

No Voice

 

Location

 

 

 

 

 

 

 

 

CO Peak-Level Memory Recall

 

Yes

No CO Alarm

 

 

 

 

 

 

 

Battery

 

2 AA batteries

 

9V and 3 AA batteries

 

Unique House Code

 

Automatic Software-programmed

 

255-location 8 position dip switch

 

 

65,000 unique codes

 

(manual)

 

 

 

 

 

Frequency

 

915MHz with 3-channel frequency

 

433 MHz w/o frequency hopping

 

 

 

hopping

 

 

 

Silence Feature

 

Nuisance and low battery silence

 

Nuisance only

 

 

for up to 8 hours

 

 

 

 

 

 

 

Mesh Network

 

Yes

 

No

 

 

 

 

 

 

**Interconnected alarms provide added warning as compared to single alarms.

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CM2837

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Contents Introduction Competitive Dip Switches CM2837 Adding and Linking Additional Onelink Alarms CM2837 CM2837 CM2837 CM2837 First Alert OneLink Competitive Comparison Summary