Product news

The APF-1865 Series is a high-precision piezoresistive force and pressure sensor for demanding OEM and medical applications. It measures either direct pressure or transmitted forces via a membrane – stable, temperature-compensated and reliable over the long term.
Available as an unamplified sensor, but also with an analogue output signal from 0.5 V to 4.5 V; customised signal ranges are also possible. Ideal for applications such as infusion systems, ventilators or other precision-critical systems.


In modern medical and OEM systems, the quality of the sensor technology determines safety, precision and reliability. Stable, reproducible measurements are essential, especially when monitoring fluids or mechanically transmitted forces.
The APF-1865 Series, which is compatible with the Honeywell 1865, was developed precisely for these requirements. The piezoresistive silicon sensor can measure both direct pressure and forces transmitted via a flexible membrane. This makes it ideal for applications such as occlusion detection in infusion and syringe pumps, pressure monitoring in ventilators or for precise force measurements in compact OEM systems.
A key advantage is the high measurement accuracy achieved through temperature compensation and laser-trimmed sensor elements. This ensures low drift and stable performance – even under changing environmental conditions.
The flexible signal output is particularly interesting for developers: the sensor is available with an analogue output signal from 0.5 V to 4.5 V. Customised output voltages are also possible, enabling direct connection to microcontrollers or existing electronics without additional signal processing.
Thanks to its compact design, it also represents a space-saving alternative to classic load cells or larger pressure transducers – ideal for portable or miniaturised devices.
So if you are looking for a precise, compact and flexible solution for force or pressure measurement, you will find a technology here that has been specially optimised for safety-critical applications.