First Sensor news
We will keep you informed about company and product news.
February 2013


New digital mass flow sensors with very high accuracy in both flow directions

First Sensor presents the new cost-effective Sensortechnics WBI mass flow sensors with ranges of 200 sccm and 1 slpm. In addition to unidirectional devices the WBI series offers bidirectional sensors to measure flows in both directions. The digital flow sensors achieve a very high accuracy over the complete measuring range in the positive as well as negative flow direction. A linear output signal is available via a digital I²C bus interface (analogue output on request).

The WBI mass flow sensors utilise a very sensitive thermal measuring principle to detect even lowest air and gas flows. The sensors feature a 2.7...5.5 V supply and low power consumption to allow for battery powered portable or handheld applications. The small housings enable space-saving and flexible PCB-mounting and compact OEM device constructions.

The Sensortechnics WBI flow sensors are ideal for medical device applications such as ventilators, sleep diagnostic equipment, CPAP, anaesthesia machines, spirometers and oxygen concentrators/conservers. Due to their fast response time the sensors ensure the early detection of the patient's breathing phases and thereby improve the device control system. Further applications include HVAC, leak detection, analytical and laboratory devices as well as fuel cells.

Important features of the new WBI series:

  • Flow ranges 200 sccm and 1 slpm
  • Very high accuracy in both flow directions
  • Digital I²C bus interface
  • Fast response time and low power consumption
Download press photo WBI

If you need further information please contact .

First Sensor AG is among the world's leading providers in the area of sensor technology. Our company develops and manufactures both standardized and tailor-made sensor solutions for applications in the industrial, medical and mobility growth markets. We will be among the top three providers in our core markets by 2019.
Investor Relations
Our investor relations activities aim at raising the international publicity of First Sensor AG and at consolidating and extending the perception of our share as an attractive growth stock. This means we keep our online communication transparent, comprehensive and continuous in order to enhance your trust in our share.
In many market-specific applications, sensors are components that are critical to your success. First Sensor is the partner you need on projects that call for careful selection, customized adaptation and the highest standards of excellence. Our Business Units Industrial, Medical and Mobility are clearly aligned to the core markets of industrial applications, medical technology as well as automotive and transport.
Electronic engineering & manufacturing services
First Sensor specializes in the development and manufacture of custom sensors, electronics, modules and complex systems. As a solution provider the company offers complete development services from a first draft and proof of concept up to the development of prototypes and finally serial production. First Sensor offers comprehensive development expertise, state-of-the-art packaging technologies and production capacities in clean rooms from ISO class 8 to 5.
Innovation, excellence, proximity – these are our values, our ambition, our drive. Anything less is not an option Our sensor solutions stand for technical innovation and economic growth. As such, they form the basis for the development and application of new technologies in almost all areas of life. We aim to shape this future together with you.