High-accuracy test gauges are recommended for verifying the vacuum/pressure in canisters before and after sampling.

• Accurate measurement of vacuum to –30" Hg and pressure to 60 psi
• Available in both analog and digital formats
• Accuracy to +/– 0.25%
• Gauge connector to canister valve available

The 6-inch face on the analog gauge allows for easy reading. The digital gauge operates on two AAA batteries and offers an unambiguous readout. Both gauges have an accuracy of +/– 0.25% and all-metal wetted parts.