Product Introduction
Adopts high-precision temperature and humidity measurement unit, typical annual temperature drift ≤0.03℃, typical annual humidity drift ≤0.25%RH.
Adopts a dedicated 485 circuit, standard ModBus-RTU communication protocol, and the communication address and baud rate can be set.
The address and baud rate can be modified on site via buttons.
Both AC and DC power supply are available, DC12~36V or AC24V (±20%).
Flange mounting, using polymer material high-elastic sealing ring to ensure the sealing of the measurement hole.
The probe rod can be extended up to 2 meters.
| Power supply | DC12~36V or AC24V (±20%) | |
| Maximum power consumption | 0.1W | |
| Accuracy | Humidity | ±2%RH（60%RH，25℃） |
| Temperature | ±0.2℃（25℃） | |
| Temperature range | Default -40℃~+80℃ | |
| Humidity range | 0%RH-100%RH | |
| Transmitter circuit operating temperature and humidity | -20℃~+60℃, 0%RH~99.9%RH (non-condensing) | |
| Probe operating temperature | Default -40℃~+80℃ | |
| Probe operating humidity | 0%RH-100%RH | |
| Long-term stability | Humidity | ≤0.25%RH/y |
| Temperature | ≤0.03℃/y | |
| Response time | Humidity | ≤8s (1m/s wind speed) |
| Temperature | ≤25s (1m/s wind speed) | |
| Maximum allowable airflow speed | 16m/s | |
| Output signal | RS485 (ModBus protocol) | |
| Electromagnetic compatibility level | GB/T 17626.4-2018 Electromagnetic compatibility - Testing and measurement techniques - Electrical fast transient/burst immunity testClass 4 GB/T 17626.5-2019 Electromagnetic compatibility - Testing and measurement techniques - Surge immunity testClass 4 GB/T 17626.2-2018 Electromagnetic compatibility - Testing and measurement techniques - Electrostatic discharge immunity testClass 4 GB/T 17626.8-2006 Electromagnetic compatibility - Testing and measurement techniques - Power frequency magnetic field immunity testClass 4 GB/T 17626.11-2008 Electromagnetic compatibility - Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity testsClass 3 |
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Main Application Areas
- Building Automation — Used for temperature and humidity monitoring in intelligent building control systems.
- HVAC Systems — Provides accurate climate data for heating, ventilation, and air conditioning signal acquisition.
- Greenhouse Agriculture — Monitors environmental conditions in greenhouses to optimize plant growth.
- Pharmaceutical Industry — Ensures precise temperature and humidity control in pharmaceutical manufacturing and storage.
- Chemical Industry — Used in chemical production processes where temperature and humidity are critical.
Keywords：RS485 temperature transmitter, duct humidity transmitter, LCD temperature humidity, industrial transmitter, Modbus temperature sensor, duct mounted transmitter, RS485 humidity sensor, HVAC temperature sensor
