for the control of temperature (-40...+70°C, precision ± 1°C for -20...+50°C) and humidity (0...99%, precision ± 3%), alarm LED, memory for 32.000 measured values, selectable storage interval (2 seconds up to 24 hours), USB port, batteries 1/2 AA 3,6 V and software included 130 x 25 x 30 mm, 117 G