Sensirion has released a new mass flow meter, the SFM4300, which allows more sensitive gas mixture measurements at low-flow rates, according to the company.
The device’s newly developed flow channel geometry allows the sensor to precisely measure air, oxygen, and N2O.

The SFM4300 features improved sensitivity, measuring mass flows of up to 20 standard liters per minute (air, O2 and N2O) and is available with various mechanical connections (downmount, Legris and O-rings).

The sensor unit, which was developed for integration into anesthesia devices among other applications, has an I²C interface and provides a fully calibrated and temperature-compensated output signal.

“The SFM4300’s performance characteristics make it the ideal solution for controlling gas mixtures in the medtech sector. It enables the mixing of very precise concentrations even at low flow rates,” says the leading product manager, Dr. Daniel Träutlein. According to Träutlein, the sensor will primarily be used in anesthesia devices and is usually integrated directly into the device. To ensure patient safety, the flow sensors in the machine need to be stable and reliable for exact, reproducible measurements – throughout the entire service life of the device. The SFM4300 is therefore the top choice when it comes to safety and reliability. Customers also benefit from an expanded measurement range of up to 20 slm.

Samples of the mass flow meter SFM4300 are available for testing in initial larger projects. Please contact Sensirion at info@sensirion.com for more information. The sensor is expected to be launched on the market in the second quarter of 2020. The sensor will then be available worldwide via official Sensirion distributors.

The device will be on display at the Compamed trade fair from November 18 to 21, 2019 in Düsseldorf, Germany.