The Swiss company KELLER is Europe's largest and one of the world's largest manufacturers of pressure sensors and transmitters.
The scope of production includes, among others:
• a wide range of piezoresistive, isolated pressure sensors;
• standard and special pressure and differential pressure transmitters, ranges from 5 mbar to 2000 bar; accuracy from 0.5% to 0.01%, intrinsically safe and flameproof;
• hydrostatic level probes, ranges from 30 cmH2O to 300 mH2O, accuracy from 0.25% to 0.05%, also in an intrinsically safe version
• autonomous - battery-operated, level, pressure and temperature recorders - also with GSM, Lora, IoT modules;
• digital manometers for leak testing of pipelines - ranges from 30 mbar to 2000 bar, accuracy from 0.5% to 0.01%; also with data logging.