LUFFT INSTRUMENTS - GERMANY Digital Data Logger : Merrk : Lufft Model : OPUS 10THI Range : Temp. : -20C to 50C Humidity : 10% to 95% Memory : 120.000 Sampling interval : 1/ 10/ 30/ 60s, 1/ 10/ 30min, 1/ 3/ 6/ 12/ 24h Interface : RS 232 / USB LCD display size 65 x40 mm