Please Note: GEOKON will be closed Thursday, July 4 and Friday, July 5 in observance of Independence Day. Normal business hours resume on Monday, July 8.
The Model 4420 Crackmeter is intended to measure movement across surface cracks and joints. It is installed by grouting, bolting, or bonding two threaded anchors (with ball joints) on opposite sides of the crack and then attaching the ends of the gauge to the anchors.
¹Other ranges available on request.
²Accuracy established under laboratory conditions.
³Length dimensions are in mid-range position.
Please Note: GEOKON maintains an ongoing policy of design review and reserves the right to amend products and specifications without notice. Various instruments are discontinued over time and replaced with new, updated models.