# SimpliSafe Entry Sensor

*SimpliSafe*

> The SimpliSafe Entry Sensor is a small magnetic door and window sensor that sounds the alarm when the magnet moves more than 1.5 inches away. It suits Home Assistant users through an integration (the maker's hub).

- Canonical page: https://smarthomecanon.com/devices/simplisafe-entry-sensor
- Last checked: 2026-10-18

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [SimpliSafe](https://smarthomecanon.com/brands/simplisafe) |
| Category | Contact sensor |
| Status | Current[^1] |
| Type | Entry (door and window) sensor[^1] |
| Power | 1 CR2032 (included), up to 5 years[^1] |
| Key spec | Alarm when the magnet moves more than 1.5 in away[^1] |
| Size | 1.25 x 1.5 x 0.62 in[^1] |
| Installation | Peel and stick, magnetic strip[^1] |
| Location | Indoor use only[^1] |
| Secret alerts | Secret Alerts notify the owner quietly without sounding an alarm[^1] |
| Battery life | Up to 5 years depending on usage[^1] |

## Integration paths

**How the SimpliSafe Entry Sensor connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Proprietary + hub](https://smarthomecanon.com/protocols/proprietary-gateway) | unknown | unknown | unknown |

**Platform support for the SimpliSafe Entry Sensor**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Proprietary + hub | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | withheld |  |

## Related pages

- [SimpliSafe security system](https://smarthomecanon.com/lines/simplisafe-security-system) (line)
- [SimpliSafe](https://smarthomecanon.com/brands/simplisafe) (brand)
- [Proprietary radio with a hub](https://smarthomecanon.com/protocols/proprietary-gateway) (protocol)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)

## Sources

[^1]: Entry Sensor - SimpliSafe. https://simplisafe.com/entry-sensor (manufacturer, checked 2026-10-18)