There are two version.

Wifi version don't need hub to work.

Zigbee Version need tuya zigbee hub to work.

Description:

1.【Smoke Alarm】Mini Smoke Detector is wonderful Safety & Security Guard for your home security.

2.【High sensitivity】360° comprehensive highsensitivity monitoring.

3.【Low power consumption】This Smoke detector designed with LOW voltage & faultprompt function and will warning when low power, with Self-test function.

4.【Mobile APP reminder】You will be alerted immediately in the event of a fire,to help you escape from Fire Hazard in time.

5. 【Wide range of uses】It is suitable for fire prevention in many places such as homes, warehouses, hotels, factories and so on.

Specifications:

Input Voltage: DC9V alkaline battery (Not Include)

Static current:＜10uA

Alarm Current:＜100mA

Low battery alert:≤6.5±0.5V

Alarm Sound Level:＞90db/2m(2.4GHz)

WiFi: 802.11b/g/n

Working Temperature:-10-50℃

Working Humidity: ≤95%RH

Tuya/Smart Life app control

Works with Amazon Alexa / Google assistant

Package Included:

1*WiFi Smoke Detector

1*User Manual

Notes:

Notice: there is no battery inside the product.