WiFi Hygrometer Thermometer Indoor Outdoor: Smart Temperature and Humidity Sensor with App Notification and Data Storage, 150m Range, Compatible with Alexa, 4 Sensors +1 Base Station

The Tuya temperature sensor connects to 2.4 GHz WiFi (does not support 5G). You can switch the temperature unit between ℉/℃, preset the alarm value, and receive notifications through the app. The user-friendly app includes a dynamic temperature and humidity chart, and you can access current as well as historical data via the app.Specifications:(1) Host unit:Communication range of the host (between master and sub-devices): ≤150 m (open)Operating temperature: -20-60℃Operating humidity: 0-99% RHAccuracy: ±0.5℃, ±5% RHMaximum number of connected sub-devices: 9Power supply: USB-DC 5V / 1 AWireless protocol: WiFi, Bluetooth, 433 MHz RFSize: 60*60*20 mm(2) Sub-device:Operating temperature: -20-60℃Operating humidity: 0-99% RHAccuracy: ±0.5℃, ±5% RHWireless protocol: 433 MHz RFPower supply: AAA*2/3VSize: 71*25*20 mm

• Multi-point Monitoring: Our weather station supports 9 external sensors to monitor various locations such as rooms, yards or greenhouses. Compare indoor and outdoor temperatures easily with one click. The communication range between the Wi-Fi temperature and humidity sensor and the base station is up to 150 metres.
• Alarm Function: Connects to 2.4 GHz WiFi (does not support 5G WiFi). You will receive an alert in the app if values go beyond the preset temperature and humidity range. You will also receive push notifications from the app when the battery is low, allowing you to respond more quickly to sudden changes in the fridge, room temperature, and more.
• Suitable for Indoor and Outdoor Use: With an IP65 rating, the outdoor thermometer-hygrometer is also weather-resistant. They are easy to use, lightweight and portable. Perfect for kitchens, bathrooms, greenhouses, refrigerators, guitar cases, humidors, attics, basements, crawl spaces and more.
• Use Voice Commands: You can now use voice commands to retrieve temperature and humidity information and also control your device remotely. Just ask Alexa – it's quick and convenient! The wireless indoor thermometer also supports Google Home.
• Smart Scene for Triggering Devices: The Alexa indoor thermometer can perform smart automations. You can set a condition in the smart scene, for example, that the fan turns on/off when the temperature reaches a threshold, or that the dehumidifier in your room starts as soon as the humidity is too high. Make your home smarter.