Key benefits — why this product matters Accurate, reliable environmental monitoring: high-precision temperature (±0.3°C) and humidity (±3%RH) sensors provide stable readings across wide ranges, so you can trust the data for monitoring and control. Long, maintenance-free operation: ultra-low-power MCU and sensors plus vibration-based screen sleep/wake mean extended battery life and fewer user interventions. Simple setup and stable output: integrated software calibration for temperature and humidity removes the need for manual recalibration; charging also performs automatic calibration. What it does and how it stands out Measures temperature and humidity with high precision: Temperature: ±0.3°C, working range -40 to 125°C Humidity: ±3%RH, working range 0%RH to 100%RH Detects motion/vibration with a three-axis acceleration sensor to automatically put the screen to sleep or wake it, reducing power consumption. Uses domestic electronic components throughout; main control MCU and sensors are designed for ultra-low power consumption. Rechargeable lithium battery with intelligent charging management. It is recommended to fully charge the device the first time; the charging process also performs automatic product calibration (normal to see data fluctuations during this process). Laboratory-tested battery endurance: 150mA lithium batteries can operate continuously for more than 6 months under test conditions. Models and components: Temperature & humidity sensor: NSHT30 Acceleration sensor: SC7A20H MCU: PT32L076 User-friendly features Automatic temperature and humidity calibration is built into the device software — no secondary user calibration required. Intelligent charging management protects the battery and supports automatic recalibration during initial charging. Motion-activated screen sleep/wake minimizes power use without user action. Suitable applications (practical examples) Home and office environment monitoring: maintain comfortable and healthy indoor conditions, track changes over time, and reduce the need for frequent battery replacement. Storage and equipment rooms: continuous, accurate monitoring of temperature and humidity in server rooms, supply closets, or archives where stable conditions are critical. Cold chain and logistics checkpoints: portable monitoring during storage or transit to verify environmental conditions with long battery life between charges. Performance and reliability notes Sensors and MCU designed for ultra-low power operation to maximize battery life. Expect normal data fluctuation during the initial charge as the device performs automatic calibration. All component models and specifications are retained: NSHT30, SC7A20H, PT32L076; temperature ±0.3°C (-40 to 125°C); humidity ±3%RH (0% to 100%RH); tested battery life with 150mA lithium battery exceeds 6 months. If you need a compact, low-maintenance temperature and humidity monitor with motion-aware power management and long battery life, this product delivers precise sensing and straightforward operation without manual recalibration.