Stafford, Texas

CS-DHP, Downhole Pressure Sensor

CS-DHP, Downhole Pressure Sensor

The CS-DHP Downhole Pressure Sensor uses a fully active four arm Wheatstone bridge, dielectrically isolated Silicon on Sapphire sensing element based on proprietary technology. This sensor was designed to withstand the high pressure, high temperature environments that are common in downhole oil and gas exploration. The compact design allows for installation in downhole tools without sacrificing space. Standard offering includes a 3/8”-24 UNF-2A process connection, uncompensated millivolt output signal, 12.5mm diameter housing and solder hooks. Integral high temperature cable can be added upon request. A PT1000 temperature output is available for further measurement capabilities.

  • ≤ ± 0.15% BFSL accuracy
  • Pressure from 5,000 to 30,000 PSI
  • High strength titanium BT9 sensing element
  • Operating temperature from -319 to 399°F


  • Accuracy @ 77°F*: ≤ ± 0.15% BFSL
  • Stability (1 Year): ≤ ± 0.25% of FS
  • Overpressure: 1.5X rated pressure
  • Burst Pressure: 2X rated pressure

*Accuracy includes non-linearity, hysteresis and non-repeatability


  • Measurement While Drilling (MWD)
  • Logging While Drilling (LWD)
  • Oil and Gas Exploration
  • Wellhead Measurements

Miniature Package – High Millivolt Output

The CS-DHP Downhole Pressure Sensor offers a typical full scale output of 125mV when using a 10VDC excitation. This provides a large amount of usable output, simplifying signal conditioning. An optional PT1000 temperature output is available for applications where a reference temperature measurement is beneficial. All of these features come in a small, compact package with a typical diameter of 12.5mm. The CS-DHP comes standard without a hex on the front end of the sensor (near the process connection threads) to ensure fitment in drilling tools with confined spaces. A hex comes standard on the back end of the sensor (near the electrical termination points) which can be used during installation.