Factory-grade IoT temperature monitoring built by folks who heat with wood themselves. Live supply & return temps, history, SMS alerts, and warranty telemetry — on every boiler you ship or own.
The Tempist Mini reads supply and return temperatures, captures every heat cycle and overboil event, and streams it straight to your phone. Works with outdoor wood boilers, indoor gasification units, and every brand we've tested so far.
Dual DS18B20 probes ride in thermowells on your supply and return lines. Long-range WiFi antenna so the signal reaches the house from the boiler shed. Factory-flashed, ships activated.
No hub. No bridge. No mystery app store. Most folks have their boiler online in under five minutes.
Two DS18B20 probes go in thermowells on your supply and return lines. We ship adapters for most common pipe sizes.
Power it up, pick your WiFi from the device's setup page, enter the password. Done.
Log in at tempisthub.com. Pair the device, pick your alert thresholds, and bookmark it on your phone's home screen.
The same rugged sensor runs on more than wood boilers. Swap the probe placement and you've got a monitoring rig for whatever else you need to watch.
Temperature logs for food-safety compliance. SMS the second a freezer starts to warm.
Learn more →Remote temp monitoring for pool heaters and spa loops. Know before the kids do.
Learn more →Custom sensor packages for process heat, greenhouses, data-center rooms, and farm use.
Learn more →We work with wood-boiler manufacturers to factory-install Tempist on every unit that leaves the floor. Warranty telemetry, dealer diagnostics, and a branded customer app — without the app-development spend.
From $135/unit with a long-range WiFi antenna. Co-branded customer dashboard, warranty telemetry packaged for your service team, and a dealer diagnostics tool that reads any customer's live data before the truck rolls.
See the OEM program →We're not a Silicon Valley shop that discovered a market. We live it. Our team's in northwest Pennsylvania, just outside Erie — lake-effect country where 7 feet of snow in a season isn't unusual and below-zero stretches are a winter tradition. Our own wood boilers run hard through all of it, which is why every feature on this platform started as something we wanted for ourselves.
The firmware is ours. The cloud is ours. The sensors are designed and supported in-house. When something breaks, we pick up the phone.
Meet the engineering team →Live data flowing in from boilers across the country. These aren't marketing numbers.