Optical smoke detectors

Optical switch

Optical switching apparatus and optical communication...

Optical system and element for detecting ice and water

Optical system and element for detecting ice and water

Optical tank-level gauge

Optical warning system

Optical wireless sensor network

Optically biased smoke detector

Optically sensing auxiliary switch

Optimization of building ventilation by system and zone...

Optimization of the field profile on a high field strength...

Optimizing RFID reader duty cycle or power to preserve...

Optimum electrolyte level sensing method and the automatic toppi

Opto-electronic apparatus for monitoring and detection of...

Opto-electronic security fence

Optoacoustic measuring arrangement and use thereof

Optoelectric safety system for a folding press

Oral drug compliance monitoring using radio frequency...

Organic clock generator