<p>Features</p><p>Power supply:5V/1A (DC)</p><p>Battery:Built in 850mAh / 3.7V battery(rechargeable)</p><p>Sensor range:-40℃ to +120℃</p><p>Work environment:-30℃ to +60℃;0% RH ~ 85% RH(non condensation)</p><p>Communication mode:WiFi</p><p></p><p>Uploading interval:</p><p>1 minute to 60 minutes (configurable)</p><p>1 minute by default</p><p>The actual product may have slight color difference or difference, which will not affect the use</p><p>Colour:Photo Color</p><p>Material:plastic</p><p></p><p>Package Contents:</p><p>1 x Digital Temperature Transmitter</p>