![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 2-5000 | Minihelic® II Differential Pressure Gage combines clean design, small size, and low cost. Latest in design. Easy to read and can safely operate at total pressures up to 30 Series 2-5000 | Minihelic® II Differential Pressure Gage combines clean design, small size, and low cost. Latest in design. Easy to read and can safely operate at total pressures up to 30](https://www.dwyer-inst.co.uk/images/Medium/2-5001_Front_1000x1000.jpg)
Series 2-5000 | Minihelic® II Differential Pressure Gage combines clean design, small size, and low cost. Latest in design. Easy to read and can safely operate at total pressures up to 30
![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
![Series 4000 | Capsuhelic® Differential Pressure Gage is designed to give fast, accurate indication of differential pressures. Measures flowing fluids, pressure drop across filters, and liquid levels in many applications. | Dwyer Instruments Series 4000 | Capsuhelic® Differential Pressure Gage is designed to give fast, accurate indication of differential pressures. Measures flowing fluids, pressure drop across filters, and liquid levels in many applications. | Dwyer Instruments](https://www.dwyer-inst.co.uk/images/addtl/Capsuhelic_600x600.gif)
Series 4000 | Capsuhelic® Differential Pressure Gage is designed to give fast, accurate indication of differential pressures. Measures flowing fluids, pressure drop across filters, and liquid levels in many 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 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 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)