Prostat CVM-780 Contact Voltmeter is powered by rechargeable Nickel Metal Hydride batteries and is the professional ESD practitioner’s most valuable ESD Analysis Tool. It measures voltages on conductors in the manufacturing process that can make contact with ESD sensitive devices causing Machine Model (MM) ESD events. It easily measures voltages on devices and subassemblies that cause Charge Device Model (CDM) and Charged Board (CBE) ESD events.