Only MicroGuard® Rated Capacity Indicators by Greer Company deliver the industry’s most reliable electronic monitoring technology to help crane operators avoid overloading events and unseen obstacles that can bring your operation to a grinding halt.
MicroGuard RCIs continuously monitor crane operation and provide the vital data operators need to maximize crane work capacity while alerting them to potential overloading conditions. MicroGuard’s systems are calibrated to your crane’s load chart using FASTCAL™ — Greer’s proprietary technology that ensures lightning-fast installation and calibration time that’s measured in hours, not days. What’s more, MicroGuard is engineered for predictable performance, no matter what the weather.

Reliable technology. Fast calibration. Easy operation. It’s no wonder U.S. crane manufacturers put their trust in MicroGuard Rated Capacity Indicators.


Microguard 434 Features:
• FastCal
• Backlighted graphic digital and analog LCD display
• Operator defined work areas
• Obstacle avoidance
• Fast crane calibrations in hours not days
• Continuously displays load, percentage of rated capacity, radius, length, height, and boom angle in all lighting conditions
• Operator can easily define a vertical plane between an object and the crane
• Audible and visual alarm warnings when preset limits are exceeded

MG 534 Console Upgrade

Manuals and service documentation

MG434 Service Manual

MG434 Operator's Manual