Avongard Corner Tell-Tale Crack Monitor SMR Target Holders The A150 battery tray is

The A150 battery tray is made of sturdy plastic which ensures its durability

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The Schonstedt level of sensitivity allows you to find what you’re looking for quickly

loose gravel and wet ground

Avongard Corner Tell-Tale Crack Monitor SMR Target Holders The A150 battery tray isMonitors horizontal and vertical movement across a crack in a corner. The Tell Tale is hinged enabling it to be used in internal corners of angles between 70 and 180 degrees. Monitors both internal and external corners. Avongard Tell Tales are precision gauges that consist of two plates which overlap for a part of their length. The bottom plate is calibrated in millimeters and the top plate is transparent and marked with a hairline cursor in the form