The Kistler Battery Powered Preload Tester Type 5991 is used for local electrical charge measurements; e.g., for measuring the necessary preload when mounting piezoelectric strain sensors. The preload is directly displayed in picocoulombs.

• Battery operated service instrument for measuring electrical charges up to 100,000 pC
• Display of measured values via 3 1/2 digit LCD
• Check of alternating signals at the monitor output
• Most easy operation
• Automatic switchoff when not in operation

Kistler Type 5991 Preload Tester