Avongard Standard Crack Monitor

Both positive & negative graduations marked.

Monitors to ±1.00mm accuracy.

Fine red crosshair allowing accurate estimation to 0.25mm.

Crack recording sheets are supplied with each unit to allow accurate recording of movement over a period of time.

Please note that Avongard Crack Monitors can be left in place to record movements across cracks for many years if used in normal ambient conditions.