York Survey Supplies

Avonguard Standard Tell Tale

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Price: £12.30

Product Code: 37000

• 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 Avonguard Crack Monitors can be left in place to record movements across cracks for many years if used in normal ambient conditions.