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 DIP switches.
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 highest protection level can reach IP65.
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 element temperature and humidity resistance | -40℃~+80℃，0%RH~95%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 — Monitors temperature and humidity in commercial buildings for optimal HVAC control and energy efficiency.
- HVAC Systems — Provides accurate climate data for heating, ventilation, and air conditioning systems to ensure comfortable indoor environments.
- Greenhouse & Agriculture — Tracks environmental conditions in greenhouses to optimize plant growth and crop yield.
- Pharmaceutical & Chemical — Ensures precise temperature and humidity control in sensitive production and storage areas.
Keywords：RS485 temperature transmitter, industrial duct humidity sensor, Modbus temperature humidity, duct mounted transmitter, HVAC temperature sensor, RS485 humidity transmitter, industrial temperature humidity, Modbus RTU sensor
