# X-Sense SD2L0AX Smoke Detector, 10-Year Battery, 5-Pack

Pack: The X-Sense SD2L0AX smoke detector is a five-unit battery-powered set with a built-in battery rated for up to 10 years. It uses photoelectric sensing and includes a test/silence button, with no-wire installation described in the listing.

- [Original product page](https://best-deals.pro/product/x-sense-sd2l0ax-smoke-detector-5-pack)
- [View offer](https://best-deals.pro/visit/x-sense-sd2l0ax-smoke-detector-5-pack)
- Market: US
- Language: en-US
- Currency: USD
- Brand: X-Sense
- Model: SD2L0AX
- Category: Electronics > Smart Home & Security > Alarms & Sensors
- Price: 79.98 USD
- Previous price: 109.99 USD
- Discount: 27%
- Price checked: 2026-11-13T05:44:35.205Z
- Rating: 4.5 / 5
- Reviews: 776

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The listing claims a built-in, tamper-resistant lithium battery provides up to 10 years of power.
- Photoelectric sensing is described as helping reduce nuisance alarms from cooking fumes and steam.
- A test/silence button and built-in self-test are listed.
- Installation is described as no-wire, with mounting screws included.
- The title identifies the detector as UL 217 certified, while the feature text says ETL listed and tested to meet UL 217.

## Pros

- A five-pack can cover several intended locations without separate wiring, according to the listed no-wire installation claim.
- A hush control and self-test provide basic on-device test and nuisance-alarm handling functions.
- The long-life built-in battery is intended to reduce routine battery replacement.

## Specifications

### Identity
- Brand: X-Sense
- Model: SD2L0AX
- Pack quantity: 5
### Detection and alarm
- Sensor type: Photoelectric
- Alarm: Audible
### Power and battery
- Power configuration: Battery Powered
### Dimensions and installation
- Dimensions listed: 4.8"D x 4.8"W x 1.8"H
- Weight listed: 1.1 kg
### Appearance
- Color: White

## Before you buy

- The listing describes the battery as providing up to 10 years, not a guaranteed service life. Customer feedback is mixed on durability and reliability, including reports of early failure, and customers differ on perceived loudness. The title says UL 217 certified, while the feature text says ETL listed and tested to meet UL 217. Confirm the exact certification wording and suitability for your installation before buying.

## A good fit for

- Households that need multiple standalone smoke alarms and prefer battery power over wiring.
- Buyers looking for a photoelectric detector with test and hush controls.

## Less suited to

- Buyers who require a documented interconnected alarm system or a combined smoke and carbon monoxide detector, neither of which is established for this model in the listing.

## Customer feedback

Customer feedback highlights easy installation, appearance, perceived value and reduced need for frequent battery changes. However, reliability and durability reports are mixed, with some customers describing early failures and differing expectations about lifespan. Customers also disagree about loudness. The long-life battery claim may suit buyers seeking less routine maintenance, but it should not be read as evidence that every unit will last for the full stated period. Aggregate ratings are generally positive, but do not resolve those individual concerns.
- Positive themes: Customers describe installation as easy and appreciate the appearance.
- Positive themes: Some customers value the battery life and consider the product good value.
- Negative themes: Some customers report that a detector stopped working in less than two months.
- Mixed feedback: Customers disagree about durability, with reports ranging from early failure to expectations of a much longer life.
- Mixed feedback: Customers differ on whether the alarm is loud enough.

## Frequently asked questions

### How many detectors are listed in this pack?
The listing identifies it as a five-pack, and the package inventory names five smoke alarms.
### What kind of sensor does the SD2L0AX use?
The product details identify a photoelectric sensor. The listing says this sensing approach helps reduce nuisance alarms from cooking fumes and steam.
### Does it need to be wired in?
The listing describes no-wire installation using included screws. It does not establish that this model interconnects with other alarms.
### How long is the battery expected to last?
The listing claims up to 10 years from its built-in battery. This is a stated maximum, not a guaranteed service life.

## Alternative options

- [X-Sense Smoke Detector, 10-Year Battery, UL 217 Certified, SD2J0AX, 5-Pack \| Photoelectric Smoke Alarm, Fewer Cooking Nuisance Alarms, One-Button Hush & Self-Test, Easy No-Wire Installation](https://best-deals.pro/visit/x-sense-sd2l0ax-smoke-detector-5-pack)
- [SITERWELL Smoke Detector, 10 Year Product Life Fire Alarm \| Battery Smoke Alarms with Photoelectric Sensor & Low Battery Warning Function for House,GS509A,5 Packs](https://best-deals.pro/visit/x-sense-sd2l0ax-smoke-detector-5-pack)
- [X-Sense Interconnected Smoke Detector, 10-Year Battery, SD20-W, 6-Pack \| Up to 18 Link+ Alarms, All Alarms Sound Together, UL 217 Certified, Self-Check and One-Button Hush for Bedrooms](https://best-deals.pro/visit/x-sense-sd2l0ax-smoke-detector-5-pack)
- [for Smoke Detector Fire Alarm with 10 Year Product Life 5 Pcs \(New\) \| 10 Year Product Life](https://best-deals.pro/visit/x-sense-sd2l0ax-smoke-detector-5-pack)
- [X-Sense Smoke Detector, 10-Year Battery, SD2J0AX \| Self-test & One-button Silence Fewer Cooking Nuisance Alarms, Easy No-wire Installation](https://best-deals.pro/visit/x-sense-sd2l0ax-smoke-detector-5-pack)
- [SITERWELL Smoke Detector Fire Alarms, 10 Year Battery Smoke Alarm Fire Detectors with Photoelectric Sensor & Low Battery, UL217 10th Listed, GS525A, 6 Packs](https://best-deals.pro/visit/x-sense-sd2l0ax-smoke-detector-5-pack)
- [12 Pack Home Safety Detector,Small Siren for Bedroom \| Home Security, 85dB Alert](https://best-deals.pro/visit/x-sense-sd2l0ax-smoke-detector-5-pack)
- [SITERWELL Smoke Detector, 10 Year Product Life Fire Alarm \| Battery Smoke Alarms with Photoelectric Sensor & Low Battery Warning Function for House,GS509A,6 Packs](https://best-deals.pro/visit/x-sense-sd2l0ax-smoke-detector-5-pack)
- [X-Sense Smoke Detector, 10-Year Battery, UL 217 Certified, SD2J0AX, 10-Pack \| Photoelectric Smoke Alarm, Fewer Cooking Nuisance Alarms, One-Button Hush & Self-Test, Easy No-Wire Installation](https://best-deals.pro/visit/x-sense-sd2l0ax-smoke-detector-5-pack)
- [2-in-1,Home Detector, Home Safety Siren Combination Detectors 6 Pcs \| interlink fun...](https://best-deals.pro/visit/x-sense-sd2l0ax-smoke-detector-5-pack)
- [SITERWELL Smoke Detector Photoelectric Smoke Alarm 9V Battery Backup \| Hardwired Smoke Detector Interconnected, Fire Alarms with Test/Silence Button, UL217 Listed Fire Detector,GS562A, 5 Packs](https://best-deals.pro/visit/x-sense-sd2l0ax-smoke-detector-5-pack)
- [X-Sense Smoke Detector and Carbon Monoxide Detector, SC01, 5-Pack \| 10-Year Sealed Battery \(Not Hardwired\), Real-Time CO and Battery LCD Display, UL 217 & UL 2034 Certified](https://best-deals.pro/visit/x-sense-sd2l0ax-smoke-detector-5-pack)

## Add-ons

- [X-Sense Smoke Detector Carbon Monoxide Detector Combo, SC07, 1-Pack \| 10-Year Sealed Battery \(Not Hardwired\), 2-in-1 Smoke & CO Detection, LCD Display, UL 217 & UL 2034 Certified](https://best-deals.pro/visit/x-sense-sc07-smoke-carbon-monoxide-alarm)

## Images

![X-Sense SD2L0AX Smoke Detector, 10-Year Battery, 5-Pack — 1](https://best-deals.pro/i/kbMdUq8wOVXMsfzBZjLuc59pWe-ACPiy5nIYPp66zJf4wziTjzGQ9hgv0pGTr26sVZEvPJAjNjm6gQJc78vCK0zMtjKdmQZ2DMElHPUkCpBICtA7-s3PSq-4.jpg)

![X-Sense SD2L0AX Smoke Detector, 10-Year Battery, 5-Pack — 2](https://best-deals.pro/i/pbAacmAkBSfoh4CL3-zGWn2TzGEyvYrxDcZDl8UtSjq-sEFtZTLF9EJVM2JSXUckcnGdQlnx4WXaSRv7vaaEAkE0wGTMdGmiKPb8L9xPG-YhMoVLE6VoYCTb.jpg)

![X-Sense SD2L0AX Smoke Detector, 10-Year Battery, 5-Pack — 3](https://best-deals.pro/i/4ypHHBZ5QDoAVJZEQsWxj1kXHneW5Z4S8bg8Q35Tpkmji-1rSyFJx3KRRmMYMtqQjXyhbOL5BYjYBo20LdeWS3vwKPyyOKCAneeGqZfGRAU8GnIzMvwdi_-H.jpg)

![X-Sense SD2L0AX Smoke Detector, 10-Year Battery, 5-Pack — 4](https://best-deals.pro/i/yzx76kU1fg3j9aGcsy4bPkfYTiWyjnG0xHPzkQrFlSErOLUlvO0I7XWJxlWR1lYTHhjVz-jrE2QfrdViO2_EJFpgIbmmphA5iiK8uQKG9NTRzGD6nBNA2JIk.jpg)

![X-Sense SD2L0AX Smoke Detector, 10-Year Battery, 5-Pack — 5](https://best-deals.pro/i/znJBg01gWVKRv2Xclp_Bw4M4bwIWzg_sPyjqWnuu5D452-zC6iIddb6xO_zP2Og26gw5B-dTj1-UqxcSLrv4_ct-UTWUszam9rgqa5f-eZGmFmC_xk5Yy0p_.jpg)

![X-Sense SD2L0AX Smoke Detector, 10-Year Battery, 5-Pack — 6](https://best-deals.pro/i/4HheXyJY0YbMIUkgvFS6s6dcdmRPAuNY3n0mhnyoKV2nw3rr4SXVK1ulep6sheSTt7OCmmBbIrOtI4WGe5S44qRc_l-vOdYuh4ZQTemfQMp0BB8Puwr5mi1L.jpg)

![X-Sense SD2L0AX Smoke Detector, 10-Year Battery, 5-Pack — 7](https://best-deals.pro/i/uKlfRNoR4hWK0UVS6affDvxSGuBKQa423XziuYleANl0wp05xdFnM9admPDNirnnDwKBBr-_BZsjiZLE8JBeq_mcpwn63eqRagGKHEPTasgbiraMMgQCxR_U.jpg)