CRL Wood's Powr-Grip® 9" Vacuum Cup with Low Vacuum Audio Alarm

Flexible Vacuum Pad Edge for Materials that May Bend or Flex When Lifted 9" (229 mm) Diameter Fast Attachment on Smooth, Non-porous Flat Surfaces Red-Line Indicator Provides User With Visual Warning of Any Vacuum Loss Available in Diameters of 8", 9" and 10" (203, 229, 254 mm) CRL Wood's 9" (229 mm) Diameter Vacuum Cups are available with a durable metal handle. Low Vacuum Audio Alarm supplements visible red-line indicator with an audible indicator, adding a measure of safety in circumstances that make it difficult to monitor the visual indicator. Plunger emits an audible warning to the user and others, in the case of a vacuum loss. Advanced design automatically turns Audio Alarm on or off as necessary, eliminating power switch, increasing battery life, and simplifying operation. Check valve allows re-pumping without loss of vacuum. Release valve lever permits quick and complete release. Supplied with protective Carrying Case. Product images shown are of the actual product or a close