Sonoff Zigbee Temperature Humidity Sensor With Precision Climate Temperature SNZB-02B

• High-Accuracy Sensing : Measures temperature with ±0.2°C (±0.4°F) accuracy and humidity with ±2%RH accuracy. Data refreshes every 5 seconds for reliable real-time monitoring
• Dew Point & VPD Monitoring : Go beyond basic temperature and humidity monitoring with real-time Dew Point and Vapor Pressure Deficit (VPD) analysis. Detect condensation risks early, help prevent mold growth on walls / furniture / and valuables / and maintain ideal transpiration conditions for healthier plants
• Slim Design for Small Spaces : Only 27.8 mm wide and 20 mm thick. Supports both hanging and adhesive mounting for flexible installation in guitar cases / cigar humidors / jewelry cabinets / wine racks / and other tight spaces
• Long Battery Life : Powered by two standard AAA batteries, designed for easy replacement and no specialized tools required, delivering up to 2 years of battery life for long-lasting, maintenance-free operation
• 6-Month Data History : View temperature, humidity, dew point, and VPD trends anytime in the app. Access up to six months of historical data to monitor long-term environmental changes

Specifications

• MCU : TLSR8656
• Input : 3.0V ⎓ (2×1.5V batteries)
• Battery Model : LR03 AAA
• Wireless Connection : Zigbee 3.0 (IEEE 802.15.4)
• Net Weight : 43.0g (including batteries)
• Color : White
• Dimensions : 66.3×27.8×20mm
• Casing Material : PC
• Application Environment : Indoor
• Operating Temperature : -20°C ~ 60°C
• Operating Humidity : 5-95%RH (non-condensing)
• Temperature Accuracy : ±0.2°C/±0.4°F
• Humidity Accuracy : ±2% RH
• Certification : CE/FCC/RoHS