THT66-2 Duct temperature and humidity transmitter
This temperature and humidity transmitter can be widely used in places that require temperature and humidity measurement, such as computer rooms, HVAC systems, buildings, warehouses, vegetable greenhouses, and livestock farms.

The THT66 Temperature and Humidity Transmitter is a versatile device specially crafted for industrial applications. It offers three diverse installation methods—wall-mounted, duct type, and split—catering to various installation environments. With optional output modes of current, voltage, and RS485, it ensures flexibility and compatibility with various processing equipment. Designed for rapid installation and boasting strong on-site adaptability, the THT66 is ideal for use in computer rooms, HVAC systems, buildings, warehousing, and any other places requiring precise temperature and humidity measurement.
Key Specifications:
• Core Function: Comprehensive temperature and humidity measurement for industrial applications
• Installation Methods: Wall-mounted, duct type, and split
• Output Signal Options:
Humidity: 0-10VDC, 4-20mA, or RS485/Modbus
Temperature: 0-10VDC, 4-20mA, or RS485/Modbus (dependent on model configuration)
• Operating Conditions:
Temperature: -20°C to 60°C
Humidity: 5% to 95%RH (non-condensing)
• Accuracy:
Humidity: ±3% at 20°C & 20-80%RH
Temperature: ±0.3°C within 0-60°C (digital type)
• IP Grade: IP65 for enhanced protection
• Display: Optional LCD display for easy monitoring
• Material: PC shell, PA6 probe rod, and polymer filter (optional stainless steel probe and stainless steel sintered filter)
Typical Applications:
✔ Monitoring and control of temperature and humidity in computer rooms and data centers
✔ HVAC systems for maintaining optimal indoor climate conditions
✔ Industrial process control in manufacturing and warehousing environments
✔ Building automation systems for energy efficiency and comfort
✔ Environmental monitoring in museums, libraries, and other sensitive facilities
Catalogue:
Additional information
1) | Relative humidity |
---|---|
0utput | 0utput:RS485/Modbus,0…10VDC,4…20mA optional |
Respond speed | <10s(25°C,Slow flow air) |
2) | Temperature |
Sensor | Digital or thermal resistor, see selection table |
Range | 0…50℃,-20…60℃ etc |
Output | 4…20mA,0…10VDC,RS485/Modbus optional |
Accuracy | Digital sensor:±0.3℃@[0…60℃],Thermal resistance:typical±0.2…0.4℃@25℃ |
Work environment | -20…+60℃,5%…95%RH(Non condensing) |
IP grade | IP65 |