Advanced Connectivity: Utilizes Zigbee protocol for reliable and efficient real-time data transmission to your smart home system. Accurate Weather Monitoring: Measures temperature and humidity with high precision, ensuring you're always aware of your outdoor environment. Energy Efficient: Designed for longevity with extended battery life, reducing the need for frequent replacements. Compact and Durable: Small size allows for discreet outdoor placement; built to withstand various weather conditions. Color: White Material: ABS Battery Type: CR2032 Temperature Detection Range: -10C to +55C Humidity Detection Range: 0% to 95% RH Temperature Detection Accuracy: 0.5C Humidity Detection Accuracy: 3% Wireless Protocol: Zigbee 3.0 Requires a Zigbee gateway for operation. Product appearance and printed text may vary slightly between batches; this does not affect functionality. Package Contents: 2 x Sensor Note: Light reflection and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.