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HTW-211 High-precision Temperature Humidity Sensor
Product Overview:
The HTW-211 is a high-precision temperature and humidity sensor commonly used in environmental monitoring, industrial control, and smart home scenarios. Employing advanced sensing technology combined with digital signal processing, it delivers real-time calibrated temperature and humidity data, featuring fast response and high stability.
Technical Parameters:
Measurement Range:
Temperature: -40°C ~ 80°C (some models up to -50°C ~ 125°C)
Humidity: 0%RH ~ 100%RH (non-condensing)
Accuracy:
Temperature: ±0.5°C (at 25°C)
Humidity: ±3%RH (at 20% ~ 80%RH)
Output Signals:
Digital interfaces: I²C, SPI, or UART (model-dependent)
Analog outputs: 0~5V, 4~20mA (supported by some models)
Supply Voltage: 3.3V ~ 5V (DC)
Power Consumption:
Measurement mode: Typical 5mA
Standby mode: Typical 10μA
Response Time:
Temperature: <10 seconds
Humidity: <5 seconds (at 1m/s airflow)
Package:
Plastic housing (IP65 protection) with metal mesh for dust filtration
Pin configuration: 4 pins (VCC, GND, DATA, CLK)
Product Features:
Wide-Range Adaptability: Supports -40°C ~ 80°C temperature and full humidity range, suitable for harsh environments (e.g., cold storage, greenhouses).
High Reliability:
Built-in anti-condensation algorithm for quick recovery in dew conditions
Corrosion-resistant coating to withstand chemical gases (e.g., SO₂, NO₂)
Low Power Design: Enables sleep mode, ideal for battery-powered wireless sensor nodes (e.g., LoRa, NB-IoT devices).
Easy Integration:
Standard digital interfaces compatible with mainstream MCUs (e.g., Arduino, STM32)
Open-source drivers and sample codes available (e.g., Python, C)
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