Desco 19780 Surface Resistance Test Kit includes 19781 resistance meter plus two 5 lb electrodes and test leads.

Desco 19784 Analog Surface Resistance Test Kit includes 19784 resistance meter plus two 5 lb electrodes and test leads in a carry case.

Desco 19787 Surface Resistance Test Kit includes resistance meter plus two 5 lb electrodes and test leads.

Desco A-50070 LCD Megohmmeter Surface Resistance Test Kit (aka - Charles Water 19770)