Skip to content

omni instruments | sensors and data acquisition equipment

Omni Instruments Ltd

Sales & Technical Support

  • +44 (0) 1382 443000
  • info@omni.uk.com
Omni Instruments Ltd
  • Home
  • Custom Systems
  • Our Brands
  • System Hires
  • About
  • Contact
  • Home
  • Custom Systems
  • Our Brands
  • System Hires
  • About
  • Contact
Products
  • Data Loggers
  • Displacement
  • Display & Control
  • Flow Meters
  • Gas Detection
  • Gyros & Accelerometers
  • Level & Distance
  • Load Cells
  • Pressure Sensors
  • Radio & GSM Telemetry
  • Remote Monitoring
  • Serial Ethernet & ModBus
  • Solar & Wind Power
  • Subsea & Offshore
  • Temperature and Humidity
  • Test & Calibration
  • Torque Transducers
  • Vibration Monitoring
  • Voltage & Current
  • Water Quality
  • Weather Instruments
  • Accessories
  • Data Loggers
  • Displacement
  • Display & Control
  • Flow Meters
  • Gas Detection
  • Gyros & Accelerometers
  • Level & Distance
  • Load Cells
  • Pressure Sensors
  • Radio & GSM Telemetry
  • Remote Monitoring
  • Serial Ethernet & ModBus
  • Solar & Wind Power
  • Subsea & Offshore
  • Temperature and Humidity
  • Test & Calibration
  • Torque Transducers
  • Vibration Monitoring
  • Voltage & Current
  • Water Quality
  • Weather Instruments
  • Accessories
  • Home
  • Custom Systems
  • Our Brands
  • System Hires
  • About
  • Contact
  • Home
  • Custom Systems
  • Our Brands
  • System Hires
  • About
  • Contact
Need Help?
£0.00 0 Basket
Product
  • Data Loggers
  • Displacement
  • Display & Control
  • Flow Meters
  • Gas Detection
  • Gyros & Accelerometers
  • Level & Distance
  • Load Cells
  • Pressure Sensors
  • Radio & GSM Telemetry
  • Remote Monitoring
  • Serial Ethernet & ModBus
  • Solar & Wind Power
  • Subsea & Offshore
  • Temperature and Humidity
  • Test & Calibration
  • Torque Transducers
  • Vibration Monitoring
  • Voltage & Current
  • Water Quality
  • Weather Instruments
  • Accessories
  • Data Loggers
  • Displacement
  • Display & Control
  • Flow Meters
  • Gas Detection
  • Gyros & Accelerometers
  • Level & Distance
  • Load Cells
  • Pressure Sensors
  • Radio & GSM Telemetry
  • Remote Monitoring
  • Serial Ethernet & ModBus
  • Solar & Wind Power
  • Subsea & Offshore
  • Temperature and Humidity
  • Test & Calibration
  • Torque Transducers
  • Vibration Monitoring
  • Voltage & Current
  • Water Quality
  • Weather Instruments
  • Accessories
£0.00 0 Basket

Relative Humidity & Temperature Transmitters

Home / Temperature and Humidity / Relative Humidity & Temperature Transmitters
  • Grid View
  • List View
RHT Climate Transmitter with Display

RHT Climate Relative Humidity and Temperature Transmitters

The RHT Climate transmitter has an integrated temperature and relative humidity sensor on the wall mounted housing, or at the end of a duct mounted probe. The Stainless Steel probe is available in 150, 250 and 400mm length probes. All RHT Climate transmitters are available with 2 analogue outputs configurable..
View Product

RHT Relative Humidity and Temperature Transmitters

RHT-DM & RHT-DM Relative Humidity and Temperature Transmitters RHT-WM and RHT-DM with dual 4-20mA outputs for temperature and humidity or dew point. RHT-WM is Wall Mounted unit with integrated sensor below the enclosure. The RHT=DM is a Duct Mounted version with the probe behind the enclosure. Options available for a..
View Product

RHT-MODBUS Relative Humidity and Temperature Transmitters.

The RHT-WM-485-LCD and RHT-DM-485-LCD transmitters include high precision and stability sensors for measuring relative humidity and temperature. They are microprocessor based devices and, therefore, allow being entirely configured through an RS485 interface using the Modbus RTU command. The DigiConfig software allows the configuration of all transmitter features as well as..
View Product

Climate Air+ Wireless Environmental Monitoring

The Climate Air+ Solution combines the RHT Air+ and AirGate Air+ devices to provide an accurate, secure and scalable temperature and humidity monitoring in critical environments such as pharmaceutical warehouses, data centers, and industrial facilities. Utilising LoRa technology for long-range wireless communication and in-built proprietary encryption for data security, this..
View Product
RHT-AIR Temperature & Relative Humidity Transmitter

RHT-AIR Wireless Temperature & Humidity Transmitter

The RHT-AIR is a battery-powered wireless temperature and humidity transmitter. The internal battery can provide up to 2 years operation, or units can also be powered via a 10-30vDC supply for continuous monitoring. Wireless transmission range is up to 1Km and will interface with an AirGate Modbus to connect to..
View Product

RH-W Wall Mount Temperature and Humidity Transmitter

The RH-W Wall Mounted Humidity and Temperature Sensors offer the latest technology high precision and accuracy Relative Humidity & Temperature elements. Jumper selectable 0-10v (0-5V) and 4-20mA (2/3-Wire) outputs. An optional multi-line backlit LCD display is available, custom temperature ranges can be requested between -20 and +50°C and direct PTC/NTC..
View Product

HygroFlex HF1 Series Transmitters

The HygroFlex 1 series contains inexpensive HVAC transmitters for relative humidity and temperature measurement. The devices are equipped with Hygromer IN-1 sensor. Duct and Wall Mounted version are available online, but space mounted versions have a minimum Order Quantities of 100 pieces...
View Product

HF3 Transmitters (Space/Room Mount)

The Hygroflex HF3 Transmitter is a Space/Room mounted transmitters for relative humidity and air temperature. This group of HF3 series offers the basic version for use in indoor environments for air temperature and relative humidity. Accuracy of <1.5% RH and 0.2 K. The transmitter has 2 X 2 wire 4..
View Product

HF3 Series Temperature & Humidity Transmitters

The new Hygroflex 3 Series is the latest development in HVAC transmitters for relative humidity, temperature and dew point. The HF3 series offers you maximum reproducibility and a guaranteed system accuracy of <2% RH and 0.3 K. The transmitter has 2 or 2x2 wire 4 - 20mA loop outputs or..
View Product
HF5A Advanced Humidity & Temperature Transmitter

Rotronic HF5A Advanced Humidity and Temperature Transmitter

The new HF5A Advanced Humidity and Temperature Transmitter is ideal for all applications where the exact measurement of humidity and temperature is of decisive importance, for example the food and pharmaceutical industries, printing and paper industries, meteorology, agricultural sector, archaeology and climatology. The HF5A can also provide Psychrometric calculations for..
View Product
Intrinsically Safe Temperature and Humidity

Intrinsically Safe Temperature & Humidity Transmitter – HF5-EX

The HF5-EX series can only be used together with the intrinsically safe HC2-EX probes to provide a temperature and humidity monitoring system suitable for use in a Zone 1 or 2 Hazardous Area. The relative humidity and temperature can be displayed and output as analogue 4-20mA signals. Calculated psychrometric values..
View Product
RHT Climate Transmitter with Display

RHT Climate Relative Humidity and Temperature Transmitters

The RHT Climate transmitter has an integrated temperature and relative humidity sensor on the wall mounted housing, or at the end of a duct mounted probe. The Stainless Steel probe is available in 150, 250 and 400mm length probes. All RHT Climate transmitters are available with 2 analogue outputs configurable by the NXperience software with options for 4-20mA or 0-10V outputs. Unit with the backlit LCD display can also be configured using the buttons on ...
View Product

RHT Relative Humidity and Temperature Transmitters

RHT-DM & RHT-DM Relative Humidity and Temperature Transmitters RHT-WM and RHT-DM with dual 4-20mA outputs for temperature and humidity or dew point. RHT-WM is Wall Mounted unit with integrated sensor below the enclosure. The RHT=DM is a Duct Mounted version with the probe behind the enclosure. Options available for a Polyamid Plastic or Stainless Steel probe with length options of 150 or 250mm insertion lengths. SigNow or TxConfig-USB can provide the digital communication interface to ...
View Product

RHT-MODBUS Relative Humidity and Temperature Transmitters.

The RHT-WM-485-LCD and RHT-DM-485-LCD transmitters include high precision and stability sensors for measuring relative humidity and temperature. They are microprocessor based devices and, therefore, allow being entirely configured through an RS485 interface using the Modbus RTU command. The DigiConfig software allows the configuration of all transmitter features as well as its diagnostic procedure.The RHT-WM-485-LCD model is intended for wall mounting while the RHT-DM-485-LCD model is equipped with an elongated sensor rod for installation in ducts ...
View Product

Climate Air+ Wireless Environmental Monitoring

The Climate Air+ Solution combines the RHT Air+ and AirGate Air+ devices to provide an accurate, secure and scalable temperature and humidity monitoring in critical environments such as pharmaceutical warehouses, data centers, and industrial facilities. Utilising LoRa technology for long-range wireless communication and in-built proprietary encryption for data security, this solution ensures regulatory compliance and operational continuity, even in challenging environments. ...
View Product
RHT-AIR Temperature & Relative Humidity Transmitter

RHT-AIR Wireless Temperature & Humidity Transmitter

The RHT-AIR is a battery-powered wireless temperature and humidity transmitter. The internal battery can provide up to 2 years operation, or units can also be powered via a 10-30vDC supply for continuous monitoring. Wireless transmission range is up to 1Km and will interface with an AirGate Modbus to connect to a local RS485 Modbus network, or AirGate 4G Wi-Fi for direct connection to Novus Cloud platform. ...
View Product

RH-W Wall Mount Temperature and Humidity Transmitter

The RH-W Wall Mounted Humidity and Temperature Sensors offer the latest technology high precision and accuracy Relative Humidity & Temperature elements. Jumper selectable 0-10v (0-5V) and 4-20mA (2/3-Wire) outputs. An optional multi-line backlit LCD display is available, custom temperature ranges can be requested between -20 and +50°C and direct PTC/NTC sensing Elements. Enthalpy and Dew Point Measurements optional. ...
View Product

HygroFlex HF1 Series Transmitters

The HygroFlex 1 series contains inexpensive HVAC transmitters for relative humidity and temperature measurement. The devices are equipped with Hygromer IN-1 sensor. Duct and Wall Mounted version are available online, but space mounted versions have a minimum Order Quantities of 100 pieces. ...
View Product

HF3 Transmitters (Space/Room Mount)

The Hygroflex HF3 Transmitter is a Space/Room mounted transmitters for relative humidity and air temperature. This group of HF3 series offers the basic version for use in indoor environments for air temperature and relative humidity. Accuracy of <1.5% RH and 0.2 K. The transmitter has 2 X 2 wire 4 - 20mA loop outputs or 3 wire 4-20mA/0-10V outputs. The transmitters is available with various configurations, but a MOQ of 20 units is require for ...
View Product

HF3 Series Temperature & Humidity Transmitters

The new Hygroflex 3 Series is the latest development in HVAC transmitters for relative humidity, temperature and dew point. The HF3 series offers you maximum reproducibility and a guaranteed system accuracy of <2% RH and 0.3 K. The transmitter has 2 or 2x2 wire 4 - 20mA loop outputs or 3 wire 4-20mA/0-10V outputs (User scaleable with software). The transmitters come in various configurations and the optional HW4 Software allows many useful functions to be ...
View Product
HF5A Advanced Humidity & Temperature Transmitter

Rotronic HF5A Advanced Humidity and Temperature Transmitter

The new HF5A Advanced Humidity and Temperature Transmitter is ideal for all applications where the exact measurement of humidity and temperature is of decisive importance, for example the food and pharmaceutical industries, printing and paper industries, meteorology, agricultural sector, archaeology and climatology. The HF5A can also provide Psychrometric calculations for more detailed outputs of readings, making this unit more suitable for more detailed analysis of environmental conditions. The transmitters come in various configurations and the ...
View Product
Intrinsically Safe Temperature and Humidity

Intrinsically Safe Temperature & Humidity Transmitter – HF5-EX

The HF5-EX series can only be used together with the intrinsically safe HC2-EX probes to provide a temperature and humidity monitoring system suitable for use in a Zone 1 or 2 Hazardous Area. The relative humidity and temperature can be displayed and output as analogue 4-20mA signals. Calculated psychrometric values such as dew point or mixing ratio can also be derived and provided as one of the output signals. Probes are interchangeable and suitable for ...
View Product
RHT Climate Transmitter with Display

RHT Climate Relative Humidity and Temperature Transmitters

The RHT Climate transmitter has an integrated temperature and relative humidity sensor on the wall mounted housing, or at the end of a duct mounted probe. The Stainless Steel probe is available in 150, 250 and 400mm length probes. All RHT Climate transmitters are available with 2 analogue outputs configurable..
View Product

RHT Relative Humidity and Temperature Transmitters

RHT-DM & RHT-DM Relative Humidity and Temperature Transmitters RHT-WM and RHT-DM with dual 4-20mA outputs for temperature and humidity or dew point. RHT-WM is Wall Mounted unit with integrated sensor below the enclosure. The RHT=DM is a Duct Mounted version with the probe behind the enclosure. Options available for a..
View Product

RHT-MODBUS Relative Humidity and Temperature Transmitters.

The RHT-WM-485-LCD and RHT-DM-485-LCD transmitters include high precision and stability sensors for measuring relative humidity and temperature. They are microprocessor based devices and, therefore, allow being entirely configured through an RS485 interface using the Modbus RTU command. The DigiConfig software allows the configuration of all transmitter features as well as..
View Product

Climate Air+ Wireless Environmental Monitoring

The Climate Air+ Solution combines the RHT Air+ and AirGate Air+ devices to provide an accurate, secure and scalable temperature and humidity monitoring in critical environments such as pharmaceutical warehouses, data centers, and industrial facilities. Utilising LoRa technology for long-range wireless communication and in-built proprietary encryption for data security, this..
View Product
RHT-AIR Temperature & Relative Humidity Transmitter

RHT-AIR Wireless Temperature & Humidity Transmitter

The RHT-AIR is a battery-powered wireless temperature and humidity transmitter. The internal battery can provide up to 2 years operation, or units can also be powered via a 10-30vDC supply for continuous monitoring. Wireless transmission range is up to 1Km and will interface with an AirGate Modbus to connect to..
View Product

RH-W Wall Mount Temperature and Humidity Transmitter

The RH-W Wall Mounted Humidity and Temperature Sensors offer the latest technology high precision and accuracy Relative Humidity & Temperature elements. Jumper selectable 0-10v (0-5V) and 4-20mA (2/3-Wire) outputs. An optional multi-line backlit LCD display is available, custom temperature ranges can be requested between -20 and +50°C and direct PTC/NTC..
View Product

HygroFlex HF1 Series Transmitters

The HygroFlex 1 series contains inexpensive HVAC transmitters for relative humidity and temperature measurement. The devices are equipped with Hygromer IN-1 sensor. Duct and Wall Mounted version are available online, but space mounted versions have a minimum Order Quantities of 100 pieces...
View Product

HF3 Transmitters (Space/Room Mount)

The Hygroflex HF3 Transmitter is a Space/Room mounted transmitters for relative humidity and air temperature. This group of HF3 series offers the basic version for use in indoor environments for air temperature and relative humidity. Accuracy of <1.5% RH and 0.2 K. The transmitter has 2 X 2 wire 4..
View Product

HF3 Series Temperature & Humidity Transmitters

The new Hygroflex 3 Series is the latest development in HVAC transmitters for relative humidity, temperature and dew point. The HF3 series offers you maximum reproducibility and a guaranteed system accuracy of <2% RH and 0.3 K. The transmitter has 2 or 2x2 wire 4 - 20mA loop outputs or..
View Product
HF5A Advanced Humidity & Temperature Transmitter

Rotronic HF5A Advanced Humidity and Temperature Transmitter

The new HF5A Advanced Humidity and Temperature Transmitter is ideal for all applications where the exact measurement of humidity and temperature is of decisive importance, for example the food and pharmaceutical industries, printing and paper industries, meteorology, agricultural sector, archaeology and climatology. The HF5A can also provide Psychrometric calculations for..
View Product
Intrinsically Safe Temperature and Humidity

Intrinsically Safe Temperature & Humidity Transmitter – HF5-EX

The HF5-EX series can only be used together with the intrinsically safe HC2-EX probes to provide a temperature and humidity monitoring system suitable for use in a Zone 1 or 2 Hazardous Area. The relative humidity and temperature can be displayed and output as analogue 4-20mA signals. Calculated psychrometric values..
View Product

CONTACT US

8:30am to 5pm Monday to Thursday
8:30am to 3pm on Friday.

  • +44 (0) 1382 443000
  • info@omni.uk.com

A real person will answer the phone and deal with your enquiry.
You can also click the button below and fill in our online enquiry form.

Technical Sales

links

  • About
  • Contact
  • Custom Systems
  • Privacy & Cookies
  • Terms & Conditions

omni instruments

Omni Instruments Ltd,
Unit 1, 14 Nobel Road,
Wester Gourdie Industrial Estate,
Dundee, DD2 4UH, UK

Sales & Support

  • +44 (0) 1382 443000
  • info@omni.uk.com

Payments

mastercard-color
visa-color
amex-color
Copyright Omni Instruments 2026 | Design. Build. Host.

        We are here to help

        Need help with your products or have a question for us on our custom systems? Use the form below to send us a message and our experts will be in touch to help.

        Call us on +44 (0)1382 443000