The 73 III is perfectly suited for many electronic applications and has the "classic" 70 series design with removable holster. The 77 III has all the features and functions for a wide range of industrial applications packaged in an ergonomic case with integrated holster.  

• 0.3% basic accuracy
• 3200 count resolution
• Digital display with analog bargraph
• Manual and automatic ranging
• Automatic Touch Hold
• Resistance, continuity and diode measurements 
• "Classic" design with removable holster (Fluke 73 III)
• Sleep mode preserves battery life
• 73-III: All inputs are protected to EN61010-1 CAT II 600V