![Series RH-R | Humidity/Temperature Transmitter is an ideal transmitter for applications where space is limited. Ideal for environmental chambers, rubber bladder burst detection, and air handler applications. | Dwyer Instruments Series RH-R | Humidity/Temperature Transmitter is an ideal transmitter for applications where space is limited. Ideal for environmental chambers, rubber bladder burst detection, and air handler applications. | Dwyer Instruments](https://www.dwyer-inst.co.uk/images/addtl/RH_R_600x600.gif)
Series RH-R | Humidity/Temperature Transmitter is an ideal transmitter for applications where space is limited. Ideal for environmental chambers, rubber bladder burst detection, and air handler applications. | Dwyer Instruments
![Series DH3 | Differential Pressure Controllers are available in 3-in-1 instruments that have a digital display gage, control relay switches, and a transmitter with current output. | Dwyer Instruments Series DH3 | Differential Pressure Controllers are available in 3-in-1 instruments that have a digital display gage, control relay switches, and a transmitter with current output. | Dwyer Instruments](https://www.dwyer-inst.co.uk/images/addtl/DH3_SS_TopLeft_PA_1000x1000.gif)
Series DH3 | Differential Pressure Controllers are available in 3-in-1 instruments that have a digital display gage, control relay switches, and a transmitter with current output. | Dwyer Instruments
![Series RSME | Designed for low differential pressure applications that require stringent pressure monitoring and alarming. | Dwyer Instruments Series RSME | Designed for low differential pressure applications that require stringent pressure monitoring and alarming. | Dwyer Instruments](https://www.dwyer-inst.co.uk/images/Medium/RSME_Plastic_Front_1000x1000.jpg)
Series RSME | Designed for low differential pressure applications that require stringent pressure monitoring and alarming. | Dwyer Instruments
![Series 647 | Wet/Wet Differential Pressure Transmitter monitors pressure in air/liquid flow systems. Used in flow, process control, HVAC automation, and pneumatic systems. | Dwyer Instruments Series 647 | Wet/Wet Differential Pressure Transmitter monitors pressure in air/liquid flow systems. Used in flow, process control, HVAC automation, and pneumatic systems. | Dwyer Instruments](https://www.dwyer-inst.co.uk/images/addtl/647_600x600.gif)
Series 647 | Wet/Wet Differential Pressure Transmitter monitors pressure in air/liquid flow systems. Used in flow, process control, HVAC automation, and pneumatic systems. | Dwyer Instruments
![Dwyer Instruments Ltd | Rate Master flowmeters, Magnehelic pressure gages, Photohelic switch/gages, Hi-Flow valves, transmitters, pressure switches Dwyer Instruments Ltd | Rate Master flowmeters, Magnehelic pressure gages, Photohelic switch/gages, Hi-Flow valves, transmitters, pressure switches](https://images.findtheneedle.co.uk/findtheneedle//products/6304137.jpg)
Dwyer Instruments Ltd | Rate Master flowmeters, Magnehelic pressure gages, Photohelic switch/gages, Hi-Flow valves, transmitters, pressure switches
![Model 460 | Air Meter/Draft Gage is popular for servicing air conditioning, heating and ventilating equipment. Gives consistent, accurate results with no tedious calibration. | Dwyer Instruments Model 460 | Air Meter/Draft Gage is popular for servicing air conditioning, heating and ventilating equipment. Gives consistent, accurate results with no tedious calibration. | Dwyer Instruments](https://www.dwyer-inst.co.uk/images/Medium/460_Kit_1000x1000.jpg)