Wireless open / close sensors

Wireless open / close sensors monitor the state of a machine, door or any other object that changes its state. Open / close sensors are used for instance to check whether the medical refrigerator is opened or if the warehouse door has been closed. Moreover these sensors can be also used as a general I/O sensors, which can detect the state of an alarm output of a device connected to it. Efento’s wireless open / close loggers use Bluetooth Low Energy, NB-IoT and LTE-M technologies to send the data to Efento Cloud or any other cloud platform.

Showing all 5 results

Newsletter December 2025

Alerts just got smarter
Discover the latest Efento Cloud update with advanced alert logic that delivers more control, fewer false alarms, and faster response to what truly matters.
New Resources Portal
Explore Efento’s brand-new Resources Portal at docs.efento.io, featuring completely rewritten and expanded documentation, improved navigation, and a built-in chatbot to help you find answers faster than ever.
Groundwater level monitoring in Iceland
See how Efento sensors are used to reliably monitor groundwater levels in remote areas of Iceland, providing accurate data even in harsh environmental conditions.
“Connected hospital” at the University Medical Center Schleswig-Holstein
Learn how Efento BLE sensors and cloud integration are powering continuous temperature and humidity monitoring across the “Connected Hospital”, improving workflow efficiency and patient safety.
New NB-IoT water level logger
Introducing Efento’s new NB-IoT wireless water level data logger - a long-lasting solution built for precise, remote water level monitoring in the most demanding environments.

Subscribe to our Newsletter