.webp "Temperature humidity sensor")
.webp "Temperature humidity meter")
.webp "Temperature humidity transmitter")
.webp "Temperature humidity monitor")
.webp "Temperature humidity detector")
.webp "Temperature humidity controller")
EU declaration conformity
Temperature | humidity controller wall mounting | 24 V DC
Product description
The RCTHF-2 is a smart room sensor with adjustable temperature and relative humidity ranges.
It measures temperature (0-50 °C) and relative humidity (0-95% rH non-condensing).
It features a single analog/modulating output control algorithm based on the measured temperature and humidity values. This output can be used to directly control an EC fan, an AC fan speed controller, or a damper with an actuator.
It also includes an ambient light sensor with adjustable 'active' and 'standby' levels.
It provides easy connectivity with spring-contact terminals. All parameters are accessible via Modbus RTU. It has a bootloader feature for firmware updates via Modbus RTU communication.
It includes 3 LEDs with adjustable light intensity for status indication.
It has an IP30 protection standard (according to EN 60529).
This sensor offers a smart and integrated solution to optimize your indoor climate control.
Additional specifications and description
Why Is Indoor Air Quality Important?
The temperature, relative humidity, and ambient light are all measured by this HVAC controller. The temperature is indicated visually by the green, yellow, and red LEDs. The green LED indicates that the temperature is within normal ranges. The yellow LED illuminates when the temperature reaches the alert level. The colour red represents extreme temperatures. The LEDs can also display relative humidity. Modbus RTU communication provides access to the measured temperature, relative humidity, and ambient light level.
Which Devices Can the Sensor Output Control, and How Does It Work?
The output of this sensor can directly control a damper actuator, an AC fan speed controller, or an EC fan. The output value varies in proportion to the measured temperature and relative humidity. For example, if relative humidity rises, the sensor may increase the fan speed or open the damper.
What Are the Sensor's Wiring, Power Connection, and Safety Features?
The cage clamp terminal blocks simplify installation and reduce wiring. They provide a reliable contact for solid or stranded wires and eliminate the need for routine maintenance. The supply voltage is 24 V DC. There is no internal connection between the ground terminals on the power supply (V-) and the output (GND). This means the sensor must be connected with a 4-wire cable. The majority of 24 V DC power supplies have overload, overvoltage, and short circuit protection. By including a 24 V DC supply voltage in your installation, you can improve its safety and dependability.
What Are the Sensor's Installation and Customization Options?
This sensor requires very little configuration. It is almost directly usable once it has been installed. Temperature and relative humidity are often region- and seasonal-specific. These parameters are still adjusted to the appropriate values during installation. The other default settings will be suitable for most applications. However, they can also be adjusted via the respective Modbus registers if necessary. A different output type, for example, can be selected to make it compatible with other devices: 0-10 VDC; 0-20 mA; 0-100% PWM; Modbus RTU. The light levels of the LEDs used for status indication are also adjustable. The Modbus register map provides an exhaustive list of all programmable settings.
What Are the Sensor's Manufacturing Quality, Calibration, and Protection Features?
This HVAC controller is manufactured in Europe. Each sensor is calibrated and tested in our factory. Sensor components and elements of the highest quality are used. This ensures the long-term accuracy and stability of this HVAC device. The sensor enclosure provides IP30 degree of protection against moisture and dust ingress. It can be mounted on a wall or flat surface indoors. To ensure optimal performance, it should be protected from direct sunlight.
∞ Monitoring air quality
The temperature, relative humidity, and ambient light are all measured by this HVAC controller. The temperature is indicated visually by the green, yellow, and red LEDs. The green LED indicates that the temperature is within normal ranges. The yellow LED illuminates when the temperature reaches the alert level. The colour red represents extreme temperatures. The LEDs can also display relative humidity. Modbus RTU communication provides access to the measured temperature, relative humidity, and ambient light level.
Which Devices Can the Sensor Output Control, and How Does It Work?
The output of this sensor can directly control a damper actuator, an AC fan speed controller, or an EC fan. The output value varies in proportion to the measured temperature and relative humidity. For example, if relative humidity rises, the sensor may increase the fan speed or open the damper.
What Are the Sensor's Wiring, Power Connection, and Safety Features?
The cage clamp terminal blocks simplify installation and reduce wiring. They provide a reliable contact for solid or stranded wires and eliminate the need for routine maintenance. The supply voltage is 24 V DC. There is no internal connection between the ground terminals on the power supply (V-) and the output (GND). This means the sensor must be connected with a 4-wire cable. The majority of 24 V DC power supplies have overload, overvoltage, and short circuit protection. By including a 24 V DC supply voltage in your installation, you can improve its safety and dependability.
What Are the Sensor's Installation and Customization Options?
This sensor requires very little configuration. It is almost directly usable once it has been installed. Temperature and relative humidity are often region- and seasonal-specific. These parameters are still adjusted to the appropriate values during installation. The other default settings will be suitable for most applications. However, they can also be adjusted via the respective Modbus registers if necessary. A different output type, for example, can be selected to make it compatible with other devices: 0-10 VDC; 0-20 mA; 0-100% PWM; Modbus RTU. The light levels of the LEDs used for status indication are also adjustable. The Modbus register map provides an exhaustive list of all programmable settings.
What Are the Sensor's Manufacturing Quality, Calibration, and Protection Features?
This HVAC controller is manufactured in Europe. Each sensor is calibrated and tested in our factory. Sensor components and elements of the highest quality are used. This ensures the long-term accuracy and stability of this HVAC device. The sensor enclosure provides IP30 degree of protection against moisture and dust ingress. It can be mounted on a wall or flat surface indoors. To ensure optimal performance, it should be protected from direct sunlight.
∞ Monitoring air quality
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