Air Ions
 $360 High Resistance Meter Measures resistance up to 1999.9 G ohms (1.9999 x 1012 ohms) and conductance down to 0.01 pS. |
 $310 Surface DC Voltmeter Measures the static charge on surfaces without contact. Sensitivity is 1V @ 1” (range 30kV). |
 $570 Ultra Stable Surface DC Voltmeter Measures static charge on surface with extreme sensitivity (down to 0.1 V at 1”) |
