EZVIZ T51C Temperature and Humidity
EZVIZ T51C Temperature and Humidity
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EZVIZ T51C Temperature and Humidity
The EZVIZ T51C (CS-T51C-A0-BG) is a two-in-one indoor thermometer and hygrometer with a 1.8-inch display that shows the room temperature and humidity at a glance. It connects over ZigBee 3.0 to the EZVIZ Home Gateway, so you can also follow the readings and receive alerts in the EZVIZ App. It runs on a replaceable CR2450 coin cell that EZVIZ rates for up to 12 months.
1.8-inch display: The current temperature and humidity are shown on the sensor itself. Anyone in the room can read them directly, without opening the app.
Monitoring and alerts in the EZVIZ App: Once the sensor is paired with the EZVIZ Home Gateway, you can check the real-time readings and the history trends in the EZVIZ App. You receive a mobile notification when the temperature or humidity changes sharply or leaves the range you set.
ZigBee 3.0 connection: The sensor talks to the gateway over ZigBee 3.0, a low-power wireless protocol. EZVIZ states a communication distance of under 200 m, tested in an open environment.
Long battery life: The included CR2450 coin cell lasts up to 12 months based on a refresh rate of 5 seconds. A low-battery reminder tells you when it is time to replace the cell.
Place it anywhere indoors: Stand it on a table or shelf, or stick it to a wall with its adhesive back. Several T51C sensors can be used in different rooms, such as a baby's room, kitchen, bathroom or storage room.
Who it's for / Works with
Homes that use the EZVIZ smart home system. The T51C needs the EZVIZ Home Gateway A3 for the EZVIZ App features, and through the gateway it can be linked with compatible EZVIZ cameras.
Good to know
The gateway is not included. Without a connection to the gateway, the sensor does not send mobile alerts. The T51C is made for indoor use.
Technical Specifications
| Model | CS-T51C-A0-BG |
| Sensor Type | Temperature and humidity sensor (high-precision digital sensor) |
| Display | 1.8-inch |
| Protocol | ZigBee 3.0 |
| Communication Distance | < 200 m (open environment) |
| Battery | CR2450 coin cell, replaceable |
| Battery Life | Up to 12 months (5-second refresh rate) |
| Operating Voltage | DC 3V |
| Low Battery Reminder | Supported |
| Operating Temperature | -10°C to 60°C |
| Dimensions | φ 70 × 17.5 mm |
| Weight | 51.9 g |
| Installation | Desktop placement or adhesive back |
| Certifications | CE / UKCA |
📄 Datasheet: Download the official EZVIZ T51C datasheet (PDF)
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