Oil-Filled Pressure Sensors for Corrosive Liquids and Gases
Media-isolated pressure sensors use silicone oil to transfer pressure from a corrosion-resistant stainless-steel diaphragm to the MEMS sensing element. This construction isolates the sensing element from liquids and gases compatible with 316L stainless steel while supporting O-ring, weldable and threaded process interfaces. AV Sensors offers OEM sensor cells for pressure ranges up to 500 psi, specialized high-pressure cells from 1,000 to 5,000 psi, and conditioned analog and digital transducers.
Compare Media-Isolated Pressure Sensors
AV Sensors offers several media-isolated pressure-sensor platforms for measuring liquids and gases compatible with 316L stainless steel. Select a series based on mechanical configuration, pressure range, output type and installation requirements. The table below provides an initial comparison; individual product pages and datasheets contain complete specifications.
OEM Oil Filled Sensor Cells—Up to 500 PSI
MIOF-85 Series
Mechanical Configuration
0.500-inch body; weldable or NPT, UNF and BSP fittings; optional snubber
Available Outputs
Constant Current (CC), Constant Voltage (CV), Digital Output (DO)
Primary Distinction
Maximum process-fitting flexibility; TE/MEAS 85 replacement
MIOF-86 Series
Mechanical Configuration
Compact 0.625-inch body with O-ring port
Available Outputs
Constant Current (CC), Constant Voltage (CV), Digital Output (DO)
Primary Distinction
Compact O-ring cavity integration; TE/MEAS 86 replacement
MIOF-154 Series
Mechanical Configuration
19 mm O-ring port with optional mounting flange
Available Outputs
Constant Current (CC), Constant Voltage (CV), Digital Output (DO)
Primary Distinction
Industry-standard 19 mm O-ring/flange installation; TE/MEAS 154N replacement
High Pressure, OEM Oil Filled Sensor Cells—1,000 to 5,000 PSI
MIOF-87N Series
Mechanical Configuration
Welded high-pressure OEM sensing cell with configurable process-fitting options
Available Outputs
Constant Current (CC)
Primary Distinction
1,000, 3,000 and 5,000 psi ranges; TE Model 87N replacement option
Industrial Transmitters, Transducers and Gauges
MIMCT-7A Series
Mechanical Configuration
316L threaded NPT, G½ and BSP ports; Hirschmann, M12 and Bendix connector options
Available Outputs
0–5 V, 1–5 V, 1–6 V, 0–10 V, 0.5–4.5 V ratiometric or two-wire 4–20 mA
Primary Distinction
ASIC-compensated analog transmitter for direct PLC, controller or data-acquisition integration; ±1% TEB
MIMCT-7D Series
Mechanical Configuration
316L threaded NPT, G½ and BSP ports; Hirschmann, M12 and Bendix connector options
Available Outputs
Digital pressure and temperature through I²C or SPI
Primary Distinction
Media-isolated digital transducer for direct microcontroller integration without an external analog signal chain
DPG-2 Series
Mechanical Configuration
304 stainless-steel gauge housing with threaded process connection
Available Outputs
Battery-powered 2.7-inch, four-digit backlit LCD; auto-tare and automatic shutoff
Primary Distinction
Standalone local pressure indication where no external controller or transmitter output is required
The MIOF-85CC, MIOF-86CC, MIOF-154CC and MIOF-87N CC provide 1% field interchangeability when used with the specified excitation circuit.
Specialized Medical Sensors
CHT-19FS Series
Mechanical Configuration
19 mm flush-surface package with flange/O-ring mounting, Molex connector and reference vent
Available Outputs
Non-oil-filled, constant-voltage, normalized 100 mV output
Primary Distinction
Specialized medical/helium-compatible sensor for intra-aortic balloon pump pressure sensing
Media-Isolated Pressure Sensor Products
MIOF-85CC
0.500-inch oil-filled platform with configurable threaded or weldable process interfaces and constant-current-excited mV output. Best suited for OEM designs using external bridge signal conditioning.
Sensor Type
- 0.500-inch media-isolated sensing platform
- Threaded, weldable and configurable process interfaces
- Constant-current-excited mV bridge output
- Intended for external OEM signal conditioning
MIOF-85CV
0.500-inch oil-filled platform with configurable process interfaces and normalized mV output using constant-voltage excitation. Best suited when voltage excitation and improved sensor-to-sensor interchangeability are required.
Sensor Type
- 0.500-inch media-isolated sensing platform
- Threaded, weldable and configurable process interfaces
- Constant-voltage-excited mV bridge output
- Improved interchangeability for voltage-excited systems
MIOF-85DO
0.500-inch oil-filled platform with ASIC-compensated digital pressure and temperature output. Best suited for direct I²C or SPI integration without an external analog signal-conditioning circuit.
Sensor Type
- 0.500-inch media-isolated sensing platform
- Threaded, weldable and configurable process interfaces
- Digital pressure and temperature output
- I²C or SPI communication interface
MIOF-86CC
Compact 0.625-inch O-ring package with constant-current-excited mV output. Best suited for OEM manifold cavities requiring a sealed, media-isolated sensing element and external signal conditioning.
Sensor Type
- Compact 0.625-inch-diameter package
- O-ring-sealed OEM cavity installation
- Constant-current-excited mV bridge output
- Intended for external OEM signal conditioning
MIOF-86CV
Compact 0.625-inch O-ring package with normalized mV output using constant-voltage excitation. Best suited for manifold installations requiring voltage excitation and improved interchangeability.
Sensor Type
- Compact 0.625-inch-diameter package
- O-ring-sealed OEM cavity installation
- Constant-voltage-excited mV bridge output
- Improved interchangeability for voltage-excited systems
MIOF-86DO
Compact 0.625-inch O-ring package with ASIC-compensated I²C or SPI output. Best suited for space-constrained digital pressure and temperature measurement.
Sensor Type
- Compact 0.625-inch-diameter package
- O-ring-sealed OEM cavity installation
- Digital pressure and temperature output
- I²C or SPI communication interface
MIOF-154CC
19 mm O-ring pressure-sensor platform with optional mounting flange and constant-current-excited mV output. Best suited for established 19 mm OEM cavities using external bridge conditioning
Sensor Type
- 19 mm media-isolated sensing platform
- O-ring installation with optional mounting flange
- Constant-current-excited mV bridge output
- Compatible with established 19 mm OEM cavities
MIOF-154CV
19 mm O-ring platform with optional mounting flange and normalized mV output using constant-voltage excitation. Best suited for 19 mm installations requiring voltage excitation and improved interchangeability.
Sensor Type
- 19 mm media-isolated sensing platform
- O-ring installation with optional mounting flange
- Constant-voltage-excited mV bridge output
- Compatible with established 19 mm OEM cavities
MIOF-154DO
19 mm O-ring platform with optional mounting flange and ASIC-compensated digital output. Best suited for direct I²C or SPI integration in existing 19 mm mechanical designs.
Sensor Type
- 19 mm media-isolated sensing platform
- O-ring installation with optional mounting flange
- Digital pressure and temperature output
- I²C or SPI communication interface
MIOF-87N CC
High-pressure welded OEM cell available with configurable process fittings and constant-current-excited mV output. Select for 1,000, 3,000 or 5,000 psi measurement and TE Model 87N replacement opportunities.
Sensor Type
- Welded high-pressure OEM sensing cell
- Constant-current-excited mV bridge output
- 1,000, 3,000 and 5,000 psi pressure ranges
- Process-fitting options for TE Model 87N replacement designs
MIMCT-7A Series
ASIC-compensated industrial pressure transducer with analog voltage or 4–20 mA output. Uses the common MIMCT-7 stainless-steel mechanical platform with threaded process ports and industrial connector options. Best suited for direct connection to PLCs, controllers and conventional analog acquisition systems.
Sensor Type
- ASIC integrated industrial pressure transducer
- Threaded stainless-steel process connection
- Analog voltage, ratiometric or 4–20 mA output
- Industrial connector options for PLC and controller integration
MIMCT-7D Series
ASIC-compensated industrial pressure transducer with digital pressure and temperature output through I²C or SPI. Uses the same MIMCT-7 mechanical footprint, process ports and connector options as the 7A. Best suited for direct integration with microcontrollers and digital control systems.
Sensor Type
- ASIC integrated industrial pressure transducer
- Same mechanical footprint and connections as MIMCT-7A
- Digital pressure and temperature output
- I²C or SPI interface for microcontroller integration
DPG-2 Series
Self-contained battery-powered digital pressure gauge with a large backlit display. Best suited for local hydraulic and pneumatic pressure indication without an external controller or display.
Sensor Type
- Self-contained digital pressure gauge
- Four-digit 2.7-inch backlit display
- Battery-powered local pressure indication
- Designed for hydraulic and pneumatic service
CHT-19FS Series
Non-oil-filled 19 mm flush-surface ceramic-hybrid sensor with normalized mV output. Designed for specialized medical pressure measurement, including helium-compatible IABP applications.
Sensor Type
- Non-oil-filled ceramic-hybrid construction
- 19 mm flush pressure-sensing surface
- Normalized 100 mV output with constant-voltage excitation
- Helium-compatible configuration for IABP medical equipment