This industrial-grade digital temperature and humidity sensor is engineered to deliver precise and reliable environmental data across a wide range of demanding applications. Designed with a cutting-edge digital transducer and robust digital processing circuit, it converts real-time ambient temperature and humidity into RS485 signals, supporting seamless integration with host computer systems through the standard MODBUS RTU protocol. Whether used in HVAC systems, building automation, or climatology monitoring, this sensor ensures exceptional accuracy with a temperature range of -40°C to 70°C and humidity detection from 0 to 99.9% RH.
Built to endure harsh conditions, the sensor is housed in a durable plastic enclosure that protects it from physical stress, moisture, and dust. The breathable, dust-proof probe design maintains optimal airflow while shielding the internal circuit, extending its lifespan and performance. With fast response time, excellent repeatability, and strong resistance to chemical interference, it is ideally suited for long-term deployment in museums, hotels, climate control systems, and industrial automation environments.
Pinout
Key Features for Superior Environmental Monitoring Performance
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Wide Measurement Range: Measures temperature from -40°C to 70°C and humidity from 0 to 99.9% RH
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High Accuracy: ±0.1°C temperature accuracy and ±1% RH humidity accuracy at 25°C
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Fast Response Time: Quickly detects and transmits environmental changes for real-time monitoring
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RS485 Output with MODBUS RTU Protocol: Ensures compatibility with industrial systems and centralized monitoring software
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Robust Enclosure: Plastic casing resists harsh conditions, dust, and moisture
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Long-Term Stability: Maintains accuracy over extended periods with minimal drift
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Dust-Proof Probe Design: Protects internal circuitry and enhances durability
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Power Supply Flexibility: Operates with a wide voltage range of 12–36V DC
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Simple Wiring: Colour-coded wires (Yellow: RS485 B, Green: RS485 A, Red: Power Input, Black: GND) for easy installation
- Supply Voltage:
- 12 ~ 36V (DC)
- Temperature Measurement Range:
- -40 ~ 70C
- Humidity Measurement Range:
- 0 ~ 99.9%RH
- Temperature Accuracy:
- +- 0.1C (25C)
- Humidity Accuracy:
- +- 1%RH (25C)
- Output Signal:
- RS485 signal
- Communication Protocol:
- standard MODBUS RTU protocol
- Baud Rate:
- 9600 (default)
- Resolution:
- Temperature: 0.1C; Humidity: 1%RH
- Wire Sequence:
- yellow wire - RS485 B; red wire - power input; black wire - GND; green wire - RS485 A
- Cable Length:
- 2 meter
