MP-1.55 Ultra miniature pressure sensor

---

Key features

• Outer diameter only 1.55 mm
• Absolute pressure range from 2 to 7 bar (30–100 psi)
• Operating temperature up to 185 °C
• High resonance frequency of 2.7 MHz
• mVolt output with optional amplification
• Custom configurations available. Please read our tutorial

---

About the MP-1.55 Ultra miniature pressure sensor

The MP-1.55 ultra miniature pressure sensor combines extreme miniaturization with high thermal and mechanical resistance.
With an outer diameter of just 1.55 mm and a resonance frequency of 2.7 MHz, it delivers highly accurate pressure measurements under dynamic conditions. The sensor’s design is optimized for harsh environments, making it ideal for applications where space, precision, and reliability are essential.

Usage conditions

Available in two temperature versions:

• ST – standard temperature up to 100 °C
• HT – high temperature up to 185 °C

Its rugged housing and reliable signal output ensure long-term stability in demanding setups, from test benches to field measurements.

Possible applications

• Aerodynamic testing and wind tunnels
• Automotive instrumentation and validation
• Industrial process monitoring
• Pumps and hydraulic systems
• Biomedical and catheter-based applications
• Oil and gas measurement

Advantages of choosing this product

The MP-1.55 offers a combination of small size, high resonance frequency, and wide thermal capability, enabling accurate pressure detection in environments where conventional sensors cannot fit. It’s an excellent solution for engineers seeking uncompromising accuracy and flexibility in compact configurations.

Other important features

• Available in stainless steel or Inconel tube designs
• Supplied with calibration sheet (pressure vs mV @ 25 °C / 5 V)
• Optional signal conditioning and temperature compensation
• Compatible with Althen SC-MP-4-XX signal conditioners
• Temperature measurement/compensation available. Please read our tutorial.

---