EnOcean unveils new solar-powered multisensor for data gathering

EnOcean, a developer of energy harvesting wireless technology, has introduced a new self-powered multisensor, providing monitoring and reporting of five separate parameters from a solar cell, integrated into a single case.

The EnOcean STM 550 combines sensors for temperature, humidity, lighting, acceleration and magnetic contact within a small, single package to allow users to collect data for a wide range of applications.

A solar cell integrated into the multisensor generates the energy required for measurement and data communication. 

Storing the energy internally, the multisensor is still able to operate when there is little or not light, allowing it to be used flexibly in buildings. A single charge requires 200 lux for six hours and this will allow the multisensor to run for four days without light. 

The STM 550 has EnOcean’s standard PTM form factor and is easy to use with established frame designs. Also available as a module to be integrated into other products, the module version is compatible with most PTM 21x switch frames. 

The multisensor is available for both the EnOcean wireless standard and for Bluetooth systems, and can also be easily configured and commissioned using an NFC interface. EnOcean’s app, ‘EnOcean Tool’ serves as the configuration interface between the multisensor and the smartphone or tablet. It can be used to determine important product parameters and to integrate the multisensor into existing systems. 


Able to monitor and report on five separate parameters in the single form factor, the STM 550 has a temperature sensor accuracy of better than +/-0.3⁰C, as well as humidity sensor accuracy of better than +/-3% r.h. throughout the entire operation temperature range. 

Another parameter built into the multisensor is vibration and this is measured and reported as two modes: direction of acceleration or orientation and detecting if it’s been moved or shaken. 

Additionally, the sensor is able to report the light levels directly underneath the sensor, taking a spot measurement, as well as having a magnetic contact sensor that detects the presence of a magnetic field for door or window opening detection. 

Completely maintenance-free and wireless, the device can be installed anywhere in a room. It can also be integrated directly into various assets wherever the data is needed, including on walls, ceilings, windows, doors, and furniture. It can also be integrated into active devices such as air conditioners and objects such as printers, copiers, medical equipment or vending machines.