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.webp "Dew point temperature humidity transmitter wall mounting")
.webp "Dew point temperature humidity meter wall mounting")
.webp "Dew point temperature humidity detector wall mounting")
.webp "Dew point temperature humidity controller wall mounting")
.webp "Dew point temperature humidity monitor wall mounting")
EU declaration conformity
Temperature | humidity sensor wall mounting | PoM
Product description
The RSTHM-2 series is a versatile room sensor that measures indoor temperature, relative humidity, and ambient light. It features selectable ranges for both temperature (0–50 °C) and humidity (0–100% rH).
The sensor operates on 24 VDC via Modbus and transmits data through three analog outputs (0–10V default) as well as Modbus RTU. All settings and firmware updates can be managed through the Modbus RTU (RS485) interface.
An integrated ambient light sensor allows for ventilation control based on occupancy, and the intensity of the status indicator LEDs is adjustable.
With its IP30 protection standard, this sensor ensures long-term stability and accuracy.
The RSTHM-2 series is a precise, flexible, and smart solution for indoor environment control, making it ideal for HVAC applications and a wide range of indoor spaces.
Additional specifications and description
Why is it necessary to measure temperature and relative humidity?
Temperature and relative humidity have a direct impact on residents' sense of well-being and comfort. Dry skin and itchy eyes are caused by dry air. Too high relative humidity levels will cause condensation to form on colder-than-air windows, walls, and ceilings, potentially damaging building materials and causing odors in poorly ventilated spaces.
Temperature and relative humidity have a direct impact on residents' sense of well-being and comfort. Dry skin and itchy eyes are caused by dry air. Too high relative humidity levels will cause condensation to form on colder-than-air windows, walls, and ceilings, potentially damaging building materials and causing odors in poorly ventilated spaces.
What Parameters Does This Sensor Measure and How Are They Indicated?
This sensor measures temperature, relative humidity and ambient light level. Based on the temperature and humidity measurements, the dew point is calculated. The LED indicators provide a clear visual indication of the temperature. The green LED indicates that the temperature is within the acceptable range. The yellow LED illuminates when the temperature enters the alert range. Red denotes extreme heat or cold. The LEDs can also be used to display relative humidity. Modbus RTU provides access to the measured temperature, relative humidity, dew point, and ambient light level.
How is the Sensor Mounted and What are its Physical Installation Requirements?
This sensor can be mounted on a wall or a surface indoors. The mounting holes are designed to accommodate standard European wall mounting boxes. Two screws are required to secure the sensor to the wall mounting box. The sensor enclosure will completely enclose the wall mounting box.
How is the Sensor Mounted and What are its Physical Installation Requirements?
This sensor can be mounted on a wall or a surface indoors. The mounting holes are designed to accommodate standard European wall mounting boxes. Two screws are required to secure the sensor to the wall mounting box. The sensor enclosure will completely enclose the wall mounting box.
How is the Sensor Powered and Connected Using PoM?
This sensor can be connected with just one RJ45 connector. Power over Modbus, or PoM, connects Modbus RTU communication and a 24 VDC power supply via a single cable. Modbus RTU communication makes all measured values available. To facilitate wiring, we recommend using Sentera 24 V DC power supplies with RJ45 connectors. These power supplies provide short-circuit, overload, and overvoltage protection. A supply voltage of 24 V DC improves the safety and reliability of your installation.
What Are the Sensor's Configuration and Customization Options?
This sensor requires very little configuration. Once installed, it is almost directly ready to use. Temperature and relative humidity are frequently region- and season-specific. These parameters are still set to the correct values during installation. The other default settings are likely to be adequate for most applications. They can, however, be adjusted using the respective Modbus registers if necessary. The light intensity of the LEDs for status indication, for instance, is adjustable. The Modbus register map provides a complete overview of all adjustable settings.
This sensor can be connected with just one RJ45 connector. Power over Modbus, or PoM, connects Modbus RTU communication and a 24 VDC power supply via a single cable. Modbus RTU communication makes all measured values available. To facilitate wiring, we recommend using Sentera 24 V DC power supplies with RJ45 connectors. These power supplies provide short-circuit, overload, and overvoltage protection. A supply voltage of 24 V DC improves the safety and reliability of your installation.
This sensor requires very little configuration. Once installed, it is almost directly ready to use. Temperature and relative humidity are frequently region- and season-specific. These parameters are still set to the correct values during installation. The other default settings are likely to be adequate for most applications. They can, however, be adjusted using the respective Modbus registers if necessary. The light intensity of the LEDs for status indication, for instance, is adjustable. The Modbus register map provides a complete overview of all adjustable settings.
What is the Manufacturing Quality and Protection Rating of the Sensor?
This HVAC transmitter is manufactured in Europe. Each sensor is calibrated and tested in our factory. We use sensor elements and components of high quality. This ensures the long-term stability and accuracy of this HVAC transmitter. The enclosure offers an IP30 protection against ingress of dust and moisture. To ensure optimal performance, it should be protected from direct sunlight.
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