TOMST s.r.o.
TOMST develops and manufactures durable, autonomous dataloggers for environmental research - made in Prague, deployed worldwide.
Every device is built to run for years unattended: a sealed body with no buttons, a battery that lasts more than a decade, and data that stays consistent in real field conditions. The approach comes from decades of building electronics that must keep working no matter what happens around them.
Products
TMS Dataloggers
One unit measures soil moisture together with soil, surface, and air temperature - three temperature sensors and a soil moisture sensor at standardized positions, so measurements stay comparable across sites and studies. One battery runs it for more than a decade at 15-minute readings, and the memory holds over half a million records - all fully unattended.
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Point Dendrometer
A potentiometer-based point dendrometer that records stem diameter changes with sub-µm resolution, plus air temperature from an integrated thermometer. It stays on the tree through every season, running for over ten years on one battery - no external power or wiring.
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Thermologger
A single-sensor temperature datalogger on the same sealed platform as the TMS. At 48 grams it can be hung on a tree, fixed to a structure, buried in soil, or placed almost anywhere outdoors - and left there to log for over ten years.
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Guard Tour System PES
Beyond dataloggers, TOMST builds the PES guard tour system: rugged iButton patrol readers with ANTI-VANDAL® technology and WinKontrol reporting, made since 1997.
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