Visually demonstrate the conductivity of a solution.

• Overall length of the meter and probes together is 14 cm
• Each probe is 53 mm long with a diameter of 3 mm

This handheld device provides a qualitative visual indicator of the conductivity of different solutions, acids or salts. Two brass probes can be touched to a solid substance, or immersed in a liquid, to show conductivity on green LEDs that range from 1 to 10.