KLIMALOGG PRO thermo-hygro logger
The deluxe version of digital indoor environment monitors - can record up to 50,000 data logs from up to 9 different locations. Initial unit records base values and up to 8 extra senders can be purchased separately.
Temp (0 - 50 C, wthin 1C) and humidity (1-99%,within 5%), max and min of both, time-referenced. Also has alarm functions, with alarm event records.
USB transceiver supplied with console, enables downloads. Radio-controlled clock.
Much more versatile (and much cheaper!) than the former mechanical THGs, and no more chart/ink management.