Founded by Jonas König and Conrad Großer, the company develops Internet of Things products and software, drawing on experience that includes building a LoRa data aggregation, transformation, and visualization platform.

Its first product is a battery-free LoRaWAN thermostat, designed and engineered in Germany. The device harvests its own energy and requires neither batteries nor wiring. It is intended to work with common radiator types, with adapters for a broad range of systems, and can be installed using standard tools. The thermostat supports high- and low-temperature heating systems and includes hydraulic balancing according to Method C.

reglr offers open-source hardware and software, including accessible schematics, board layouts, firmware, and a payload decoder for custom integrations. Optional app and cloud services provide alerts, while device-to-app communication is end-to-end encrypted. Wireless firmware updates, frost protection, and a replaceable internal buffer cell support ongoing use.