Please see the chart below for what type of battery your sensors require.
*CR123A batteries are sometimes listed as CR123. They are the same battery.
*CR123A batteries are sometimes listed as CR123. They are the same battery.
| Part # | Description | Battery | Picture | Video |
|---|---|---|---|---|
| WS4945 | Door/Window Sensor with aux input | CR2 | ![]() |
|
| EV-DW4975 | Vanishing Door/Window Sensor | CR2032 | ![]() |
|
| EV-DW4917 | Recessed Door/Window Sensor | CR2 | ![]() |
|
| WS4904P | Pet Immune Motion Detector | CR123A | ![]() |
|
| WS4936 | Photoelectric Smoke Detector | 3 × AAA | ![]() |
|
| WS4933 | CO Detector | CR123A | ![]() |
|
| WLS922L-433 | Glassbreak Detector | CR123A | ![]() |
|
| WS4985 | Wireless Flood Detector | CR2 | ![]() |
Same as WS4945 |
| WS4938 | Panic Button | 2 × CR2025 | ![]() |
|
| WS4939 | 4 Button Keyfob | 2 × CR2025 | ![]() |
|
| WT5500 | Wireless Keypad | 4 × AA | ![]() |












