Specification :
     * Temperature measurement :
     * Range : -40 to 80 °C. Resolution: 0.1°C
     * Response time : up to 30 s in fairly still air
     * Humidity measurement :
     * RH Range : 0 to 100 %RH. Resolution: 0.1%RH
     * RH : ± 3% between 20 and 80% (see manual)
     * Temperature : ± 0.5 °C at 20°C (see manual) Memory.
     * 32,000 recordings, total for one channel or 16,000 recordings for
        each channel
     * Recording interval : Programmable from 1s to 18 hours
     * Power : Internal replaceable lithium cell (3.6V 1/2 AA)
     * Estimated battery life 2 years with one daily download (battery
        life depends heavily on data retrieval frequency)

    Software:
     * Configuration and data retrieval software for Windows 98, XP,  
        2000, Vista  and PalmOS
     * Operating temperature : -40°C to 80°C
     * Enclosure : IP65 (electronics), IP40 (sensor probe), Flame
        retardant, ABS+PC
     * Dimensions: 70 x 60 x 35 mm