HANNA- Handheld Colori meters + + Free Calibration Certificate (001)

*  Light detector is silicon photocell.

*  Environment is 0 to 50 celusis (32 to 122 fernhit);RH max 95% non-condensing

*   Battery type is (1) 1.5 V AAA

*   Dimensions is 81.5 * 61 * 37.5 MM (3.2 * 2.4 * 1.5" )

*   Dedicated to single parameter.

*   Digital read out 

*   Auto shut off

*   Single button operations

*   Fits in the palm of your hand