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Comparisons of the The
Sanderson Accu-Tuner® Models
Feature Sanderson
Accu-Tuner® III

Sanderson
Accu-Tuner® IV

Accuracy ± 0.005 cents ± 0.005 cents
Resolution ± 0.05 cents ± 0.05 cents
Repeatability ± 0.05 cents ± 0.05 cents
Sequence Pages Chromatic or one of 4 programmable sequence pages. Works with Auto-Stepping. Chromatic or 8 programmable
sequence pages. 
Temperaments other than Equal 14 Temperament Pages, user- programmable. Select one to combine with any Page. Store with tuning, or use on the fly. 28 Temperament Pages, user- programmable. Select one to
combine with any Page. Store with tuning, or use on the fly.
Pitch Raise 1/4 or 1/3 Overshoot,
user-selectable.
1/4 and programmable overshoot page.
Computer Interface MIDI-IN interruptible with Warm Stop. Mini USB port, software for offloading tunings included.
Battery Charge Status LO-BAT, and 25% of Charge LO-BAT, and hours left of use
Battery Charge Status LO-BAT, and % of Charge Left LO-BAT, and 1 % of Charge Increments
Memory Capacity

165 Generic Tunings,
 33 piano pages,
 14 temperament pages
4 sequence page

168 Generic Tunings
 401 User piano pages,
 28 temperament pages
8 sequence page

Dimensions 6” x 4.5” x 3.5” 7” x 5” x 2”
Note, Oct,
& Cents Displays
4-1/2 Digit with Auto up, Auto-down, Temperament indicators Dot Matrix LCD, displays characters on two lines, allows over four times the information to be displayed at one time.
Long Term Durability More than 30 years, all Accu-Tuners are still repairable
and still in use.
Long Term Value

10-year depreciation history only 30%,
SATs have retained 70% of their value for over 5 years.

Obsolescence No need to pay for upgrades to stay current, unlike software.
Repair Service 1 to 2 days in shop.
Support Toll Free Support 1-800-FAST-440 (1-800-327-8440)
9-5 Eastern Time, Mon. thru Fri, excluding holidays.

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Testimonials:

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exceptional products and
service.
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Original Technology

Read about inventor
Al Sanderson’s innovation
in aural measurements
and how it changed how
we tune pianos.
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The Sanderson
Accu-Tuner® IV



Did You Know?
Your older SAT can be retrofit to upgrade its capabilities...
LEARN MORE

 

 

 
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