Low range differential pressure sensors for measuring very small pressure differences.
DPS Low Differential Pressure Transmitter - Ultra low differential pressure transmitter for HVAC applications with 4-20mA current loop or amplified voltage output signal in pressure ranges from 0.1 mb up to 1 bar differential. 
PrimAtü 10 Low Cost Low Range Differential Air Pressure Transducer - The PrimAtü 10 low cost low range differential air pressure transducer can detect and display both positive and negative differential pressure variations of very low low pressure ranges from 0.5 up to 1000 mbar/hPa, and output the pressure as a 4-20mA, 0-20mA or a 0-10Vdc analog output.
DPS200 HVAC Differential Pressure Transmitter - Differential air pressure sensor with a 10 volt or a 4-20mA output for building ventilation applications. Ranges from 0 to 6 mbar up to 0 to 1000 mbar.
DPS300 User Switchable Pressure Range, Volts or Current Output Low DP Sensor - The DPS 300 is a low range HVAC differential pressure sensor. The lowest possible pressure range is 0...100 pascals. 2 or 3 switchable pressure ranges, plus volts or current output are included with most standard configurations.
DMD341 Compact Differential Air Pressure Sensor - Small size dp sensor for measuring differential air pressure on HVAC, compress air and pneumatic control systems.
41X Low Range Digital Output Pressure Sensor - Low pressure sensor with a USB, RS232 or RS485 digital output interface for measuring low range gauge or differential pressures from 10 to 300 mbar.
- Ethylene glycol antifreeze compatible 300 pascal dp sensor
- 4 inch water column range 4-20mA differential pressure sensor for liquids
- -3 to 3 psi dp range high accuracy 4-20mA air pressure transmitter for water treatment use
- Portable data acquisition trolley +/-20 kPa dp RS485 Modbus RTU interface air pressure sensor and display package
- -200 to 200 Pa bi-directional range 4-20mA output dp pressure transmitter for venturi tube
- -3 to 4 mbar dp range 4-20mA ATEX approved biogas pressure sensor for process control use on a 1bar line
- 1 inH2O differential intrinsically safe 4-20mA out air pressure sensor for HVAC use
- 5 psi dp 0-10V out air pressure sensor for automation flow rate testing use on a 15psi line
- 3inH2O differential 4-20mA nitrogen pressure sensor and display for annealing furnace flow control use
- 100mbar dp range 0-5Vdc amplified output air pressure sensor for aerospace research test rig use
- 10Pa diff range 0-20mA output air pressure sensor for automotive component testing
- 20 Pa DP range 0-10V output air pressure sensor for building management use