2-in-Protection: This combination detector protects against both smoke and carbon monoxideWireless Interconnection: When one alarm sounds, all alarms will go off10-year Sealed Battery: This wireless alarm features a 10-year lithium battery and will give a low battery warningTest/Silence Button: The single push of a button will either test or silence all units in the systemFull Home Coverage: Link up to 24 Link+ wireless smoke alarms, CO alarms, and combination alarms for maximum home protectionEasy to Install: This smoke and CO detector is easy to mount onto any wall or ceiling using the included accessories
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| Model XP04 | Model XS03-WX | Model XP01-W | Model XC01-WR | Model SC07-W | RC01 (Remote Controller) |
| Sensor Type | Photoelectric & Electrochemical | Photoelectric | Photoelectric & Electrochemical | Electrochemical | Photoelectric & Electrochemical | |
| Detection Type | Smoke & Carbon Monoxide | Smoke | Smoke & Carbon Monoxide | Carbon Monoxide | Smoke & Carbon Monoxide | |
| Power Source | AC or Back-up battery | Replaceable Battery | 10 Years Built-in Battery | Replaceable Battery | 10 Years Built-in Battery | Replaceable Battery |
| Low Battery Warning | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Digital Display | | | | ✓ | ✓ | |
| Interconnection | Hardwired | | Wireless | Wireless | Wireless | ✓ |
| Link+ Series | | | ✓ | ✓ | ✓ | ✓ |
| Compatible with Remote RC01 | | | ✓ | ✓ | ✓ | |
| APP Control | | ✓ | | | | |
| Item Size | Ø 5.5 x 1.5 in | Ø 3.1 x 1.9 in | Ø 5.3 x 1.7 in | 5.3 x 2.5 x 0.6 in | Ø 5.7 x 2 in | 3 x 1.6 x 0.5 in |