ProSight Smart Duct Type Temperature and Humidity Transmitter

The ProSight Smart Duct Type Temperature and Humidity Transmitter is an industrial environmental monitoring device designed to measure air temperature and relative humidity within air ducts and ventilation systems.

The transmitter uses an advanced temperature and humidity sensing element and electronic signal-processing circuitry to convert measured environmental conditions into electrical output signals. The integrated indicator provides local visibility of measured conditions, while the 4-20 mA output enables the transmitter to communicate measurement values to compatible HVAC controllers, PLCs, building management systems (BMS), data acquisition equipment, or other monitoring systems.

The duct-mounted probe is designed for installation directly into air ducts, allowing the device to monitor the actual air conditions within the ventilation system rather than relying only on measurements from a nearby room or wall-mounted sensor.

How Does It Work?

The ProSight Smart Duct Type Temperature and Humidity Transmitter is installed through the wall of an air duct using its supplied duct mounting arrangement. The probe extends into the airflow and senses the surrounding temperature and relative humidity.

The transmitter processes the sensor signals and provides an analog 4-20 mA output proportional to the configured measurement range. This output can then be connected to a compatible controller or building management system for monitoring, control, alarms, or data logging.

The temperature measurement range can be configured according to the selected transmitter version, while the humidity measurement range covers 0-100% RH in the referenced MTH500S configuration. An integrated display/indicator allows users to view measurements locally without relying exclusively on the connected control system.

Why Choose this Product?

• Designed for duct installation – Measures temperature and humidity directly within HVAC and ventilation air ducts.
• Dual environmental measurement – Monitors both temperature and relative humidity using one instrument.
• 4-20 mA output – Provides a widely used industrial analog signal for integration with HVAC controllers, PLCs, BMS, and monitoring systems.
• Local indication – Integrated indicator enables convenient viewing of measured values at the transmitter.
• Stable sensing technology – Uses an advanced sensor module designed for accurate and stable environmental measurement.
• Adjustable configuration – Temperature measurement range and offset can be configured according to the selected model and setup.
• Dust-proof probe – Helps protect the sensing element in typical air-handling and duct environments.
• Duct mounting bracket – Simplifies installation into ventilation ductwork.
• Wide application range – Suitable for commercial buildings, warehouses, libraries, medical environments, HVAC systems, and greenhouses.
• Industrial-style construction – Designed for continuous environmental monitoring applications.

Benefits

• Helps maintain appropriate temperature and humidity conditions in HVAC systems.
• Supports more effective building environmental control.
• Enables centralized monitoring through a standard 4-20 mA signal.
• Provides local measurement visibility through the integrated indicator.
• Helps HVAC operators identify temperature or humidity changes in ventilation air.
• Can support energy-efficient HVAC operation by providing real-time environmental feedback.
• Reduces the need for separate temperature and humidity transmitters.
• Suitable for integration into automated control and monitoring systems.
• Helps protect sensitive environments where temperature and humidity control is important.
• Provides a practical solution for continuous environmental measurement in ducted air systems.