The Sag Flag Roof Monitor from Simplified Mine Instruments (SMI) is designed to simplify the way miners measure rock strata separations and roof sag making it a must-have addition to any miner’s early warning systems.
One of the standout features of the SF100 Roof Monitor is its continuous visual indication of” how much” movement has occurred. Miners can receive visual indications of movement from a distance, enhancing their situational awareness and enabling swift decision-making. Easily installed and monitored, the Sag Flag simplifies monitoring of a mines back.