Simplified Mine Instruments (SMI)
MHL SMI Extensometer
Price: US $230.00 – US $245.00
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Product info: MHL SMI Extensometer
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Product long description:
MHL SMI Extensometer
This monitor is a single point extensometer.
One rod set monitors roof sag and activates a reflectorized rod when a user defined amount of movement has occurred. Incremental movement is read with a digital micrometer (Sold separately).
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Product specifications
MHL SMI Extensometer
Features and Specifications:
- Made in America
- Single-point rock movement monitor with a 12″ reflectorized drop flag, visible from great distances
- Thousandths of an inch measurement retrievable at the instrument with the use of a dial gauge or adapter
- Non-corrosive materials
- Designed to install quickly and is easy to use by all
- 1-1/2″ diameter hole minimum
- Unlimited monitoring depth
- User set trips, resettable and adjustable
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