No longer produced. Price: 2nd hand $100-350 Description: Reliable but older technology. Lacks sensitivity for Solo and upper level auditing. No clock. Warranty: needs annual certification ($150). Year of design: c.1965
Mark VI
No longer produced. Price: 2nd hand $200-600 Description: More sensitive than M5; electronics prone to breakdowns. Has clock, electronic TA counter. Warranty: needs annual cert. ($150). Year of design: c.1979
Super VII
No longer produced Price: 2nd Hand $300-900? Description: Good, reliable Meter adapted for Solo as well as upper level auditing. Warranty: needs annual cert. ($150). Year of design: c.1987
Quantum Super VII
Price: $4.620 Students, who are IAS members get 25% off = $3465.- Description: Top of the line. Very sensitive needle. Electronics gets mixed reviews by some experts. Warranty: needs annual certification ($150). Year of design: c. 1996
