https://www.acehardware.com/departments/heating-and-cooling/thermostats-and-heating-supplies/igniters/47907
Thermopile generators have long been used in self-powered heaters and hot water equipment. The Honeywell Home CQ200A has been proven in millions of appliances...
honeywell homevmetalthermopilegenerator
https://www.thethingsnetwork.org/device-repository/devices/milesight-iot/vs351/
VS351 is a compact AI thermopile people counter designed for indoor entrance and exit applications. It offers high accuracy in bi-directional people counting,...
people counterminiaithermopiledevice