09429606 - Kell-Strom KS5549 – PRO 360 Digital Protractor
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The 09429606 is a specific part number of the series Kell-Strom KS5549. For more generalized information on this item series or for more options, click here.
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| Alternate Models | |
|---|---|
| 09429606 | Alternative Part Number |
| PRO 360 | Alternative Model Number for PRO-360 Digital Protractor |
| General Information | |
|---|---|
| Part # | 09429606 |
| Manufacturer | Kell-Strom |
| NSN | 4920014206291 |
| Shipping Information | |
|---|---|
| Product Weight | 1.5 lbs. |
| Product Dimensions | 8.3 x 5.3 x 2.3 in. |
| Schedule B | 9017208060 |
| ECCN | EAR99 |
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AIRCRAFT COMPATIBILITY
This item is for use on all aircraft.
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QUESTIONS & ANSWERS
To maintain accurate measurements, the PRO 360 should be tested for accuracy daily using the “end-to-end” method. If any of the four readings differ by more than 0.1°, recalibration using the Superset® procedure is required. This is especially important after drops or when operating in environments with temperature shifts greater than 9°F (5°C) from the last calibration setting.
Superset® is a built-in, eight-step electronic recalibration process that realigns the PRO 360 across its entire 360° range. It records four horizontal and four vertical positions, ensuring precision without special tools. The process takes only a few minutes and can be done onsite by following the step-by-step instructions in the owner’s manual.
The PRO 360 runs on a 9-volt alkaline battery, which provides up to 500 hours of typical use. A lithium 9V battery can be used for extended life. The unit features an automatic shutoff after five minutes of inactivity and a low battery warning that flashes “LO bAt” when it’s time to replace it.
While it doesn’t have permanent memory storage, the PRO 360 includes a HOLD feature that temporarily “freezes” the current reading. This is useful when measuring in hard-to-read positions or when recording values. Pressing the HOLD button again will release the display for continued measurements.
Yes, the ALT ZERO function allows you to designate any angle as your reference 0.0° point. This is helpful when measuring relative angles from surfaces that aren’t perfectly level. Simply place the device on the reference surface, wait five seconds, and press ALT ZERO to activate the alternate mode
Routine maintenance is minimal. Clean the unit with mild liquid soap and a damp cloth – never immerse it in water or use solvents. Perform the daily accuracy test before use, and recalibrate as needed. Proper storage and care will extend the unit’s service life.
The PRO 360 digital protractor includes a one-year limited warranty covering defects in materials and workmanship. It does not cover damage from misuse, tampering, water exposure, or improper maintenance. Warranty service requires proof of purchase and a brief explanation of the issue.
