
EZVIZ T2C Open/Close Sensor
The EZVIZ T2C (model CS-T2C-A0-BG) is a ZigBee 3.0 open/close contact sensor for doors and windows. It consists of a main body and a magnet, sends alerts to the EZVIZ app when the door or window opens or closes, and runs on two CR1632 cell batteries rated for up to 2 years. It requires the EZVIZ Home Gateway A3.




Open/close detection: When the magnet moves away from the main body, the sensor reports that the door or window has opened, and reports again when it closes. EZVIZ recommends a trigger gap of more than 25 mm on wooden doors and more than 15 mm on iron doors.
Instant alerts in the EZVIZ app: Through the gateway, you receive a notification on your phone each time the door or window is opened or closed, so you know about entry points even when you are away.
Anti-tamper alarm and low-battery reminder: The sensor raises an alert if someone tries to tamper with it, and the app reminds you when the battery is running low.
Peel-and-stick installation: The sensor and magnet fix in place with the adhesive back and included double-sided tape, so no drilling or wiring is needed.
Long battery life: Two CR1632 cell batteries last up to 2 years, based on EZVIZ's figure of 30 detections per day.
Who it's for / Works with
The T2C works with the EZVIZ Home Gateway A3. After it is connected to the gateway, it can also be linked with EZVIZ wired cameras running firmware version 5.3.4 or later.
Good to know
The gateway is not included; the sensor does not work without the EZVIZ Home Gateway A3. Camera linkage works only with EZVIZ wired cameras on firmware 5.3.4 or later; EZVIZ advises confirming camera compatibility with its support team. The communication distance of under 200 m was measured by EZVIZ in an open environment.
Technical Specifications
| Model | CS-T2C-A0-BG |
| Detection Type | Open / close status |
| Recommended Trigger Distance | Wooden door > 25 mm; iron door > 15 mm |
| Protocol | ZigBee 3.0 |
| Communication Distance | < 200 m (tested in open environment) |
| Gateway Required | EZVIZ Home Gateway A3 |
| Anti-Tamper Alarm | Supported |
| Low Battery Reminder | Supported |
| Installation | Adhesive back, peel-and-stick |
| Battery | CR1632 cell battery × 2 |
| Battery Life | Up to 2 years (30 detections per day) |
| Operating Conditions | -10 °C to 55 °C, humidity 95% or less (non-condensing) |
| Dimensions | Main body: 53.5 × 22.5 × 13.5 mm; Magnet: 32.0 × 10.5 × 13.5 mm |
| Weight | 80 g with package |
| Certifications | CE / RoHS / REACH / WEEE / UKCA |
| In the Box | T2C open/close sensor, double-sided tape strip(s), quick start guide, regulatory information |
📄 Datasheet: Download the official EZVIZ T2C datasheet (PDF)
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