X-Sense Smoke Alarms (SD2L0AX, SD19-W)
The X-Sense Smoke Alarms (SD2L0AX, SD19-W) lists a 10-year life, per X-Sense. A photoelectric smoke alarm with a sealed 10-year battery that links wirelessly to other X-Sense Link+ alarms (902-928 MHz). The maker lists UL 217 10th edition and ULC S531 5th edition.
Alarm spec sheet
| Type | Smoke |
|---|---|
| Sensor | photoelectric |
| Power | 10-year sealed battery (3V CR17450 lithium, non-replaceable) |
| Listed life | 10 years, per the maker |
| Interconnect | Wireless |
| UL standards named | UL 217 10th and ULC S531 5th |
Listed features
- Sealed 10-year battery
- Wireless interconnect of up to 12 smoke and 6 CO alarms (X-Sense Link+ and Link+ Pro only)
- UL 217 10th edition
Worth checking
- Interconnect works only with X-Sense Link+ alarms
Where to buy the Smoke Alarms (SD2L0AX, SD19-W)
Prices and availability change. We may earn a commission from some links.
- Check for recalls: Search the agency's recall list with the model number and date code from the label: CPSC recall search.
- Use and supervision: follow the maker's warnings on the product, and see CPSC's Safe Nursery guide. Check the label and the maker's instructions, and ask your pediatrician about your child.
Full specs
| X-Sense Smoke Alarms (SD2L0AX, SD19-W) | |
|---|---|
| Type | Smoke or CO alarm |
| Alarm | smoke |
| Sensor | photoelectric |
| Power | 10-year sealed battery (3V CR17450 lithium, non-replaceable) |
| Interconnect | wireless |
| Standards (maker) | UL 217 10th and ULC S531 5th |
| Replace after | 10 years |
Compare the Smoke Alarms (SD2L0AX, SD19-W) with
How each closest rival differs from the Smoke Alarms (SD2L0AX, SD19-W), from the makers' specs.
Smoke Alarms (SD2L0AX, SD19-W): questions answered
From X-Sense's published specs, last checked 2026-11-11.
Where should the X-Sense Smoke Alarms (SD2L0AX, SD19-W) go?
Maker's standards wording: UL 217 10th and ULC S531 5th. Use and supervision: follow the maker's warnings on the product, and see the AAP's safety and prevention pages. Check the label and the maker's instructions, and ask your pediatrician about your child.
Still wondering? Write to us at hello@cribpicks.com and we'll look it up.
More smoke and CO alarms
- X-SenseXC0M-iR Smart Carbon Monoxide Alarm with Voice10-year
- X-SenseXP0A-MR Interconnected Smart Smoke and CO Alarm with Voice
- X-SenseXP0J-SA Hardwired Smoke and CO Alarm with Voice10-year
- X-SenseXS0B-iR Smart Smoke Alarm with Voice10-year
- First AlertSMCO210 / SMCO210V Combo
- First AlertSMCO500V Combo
Where these specs come from
Last checked 2026-11-11. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.