Knowledge Base
Frequently Asked Questions
How do I read a strobe display?
Adjust your instrument until the pattern is as close to still as possible. Strobe displays are 'real-time' and extremely high definition. They require very precise tuning adjustments to stop the display because the frequency/pitch of any instrument is never totally stable.
You'll quickly learn to read the display, make the most precise adjustments and appreciate the high resolution that only a Peterson provides.
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Peterson Connect does not detect my StroboClip HD in Linux environment.
Chrome needs access to /dev/hidraw*, so either set "chmod a+rw /dev/hidraw*" or start chrome as root with the --no-sandbox option
*Some Ubuntu based distros do not allow running Chrome as root with the --no-sandbox option enabled. -Running as root without --no-sandbox is not supported. See https://crbug.com/638180. You can however run Chromium as a normal user and invoke that option.
Some users have reprted a fix by adding a new udev rule as follows: KERNEL=="hidraw*", SUBSYSTEM=="hidraw", MODE="0664", GROUP="plugdev", ATTRS{idVendor}=="2368", ATTRS{idProduct}=="*SEE BELOW"
* Some Peterson products operate in two different modes with individual product id's for firmware update operations. Multiple rules may need to be created. Here is the list of Peterson USB product ID's
idProduct =
Stomp Classic = 8002
StroboPLUS HD = 0003
StroboPLUS HD Firmware Mode = 8003
StroboClip HD = 8004
StroboStomp HD = 8005
StroboPLUS HDC = 0006
StroboPLUS HDC Firmware Mode = 8006
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Is the accuracy the same for all Peterson tuners?
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Does my tuner require calibration?
Unlike more modern Peterson strobes, legacy models such as the Peterson 400, 420, 450 and 700 do require occasional calibration.
If you require service, please open a support ticket and return the tuner for repair.
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What is my StroboClip HD’s Sweetened Tunings feature all about?
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Is there a carrying case available?
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Which Peterson products work with Peterson Connect?
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How accurate is my StroboClip HD?
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How do I send my product in for repair?
All products returned for service must have a support ticket number on the outside of the box as well as on the accompanying paperwork on the inside of the box. If you have not registered your tuner, you must do so before returning it. Include a description of your problem. Please be specific about the type of malfunction as well as the conditions under which it occurs.
There is a minimum charge of $70.00 US plus a shipping charge for all Peterson tuners received (unless subject to Peterson warranty). Payment options include C.O.D., VISA, MasterCard, and Discover Card.
NOTE: For international (non-USA) repairs and for all Conn tuner repairs, a different procedure may apply. If you would like an advance estimate for service, you must include a request in writing with the tuner you ship.
Contact and Shipping Details:
For service of Peterson tuners:
Peterson Electro-Musical Products, Inc. 11601 South Mayfield Ave. Alsip, IL 60803 USA
TEL: 708-388-3311 (ext. 143) FAX: 708-388-3341
Email: techwest@petersonemp.com
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How do I turn on /off Auto Preset Order of my StroboClip HD

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What should I do if my new Peterson product doesn't seem to work properly?
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What is the range of Hz calibration or Concert A calibration of my StroboClip HD?
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How do I find out how far out of tune my guitar is in cents?
The following video shows this process using a StroboPLUS HD.

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How do I completely reset my StroboClip HD to factory default?

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Not finding an answer? Open a support ticket for personalized support of your Peterson product.
Product Manuals
Not finding an answer? Open a support ticket for personalized support of your Peterson product.
Firmware History
StroboClip HD Version 1.0.6
Monday, April 27, 2020 9:16:00 AM EDT
- Various Bug Fixes & Improvements
StroboClip HD Version 1.0.5
Tuesday, November 21, 2017 3:00:00 PM EST
- Optimized startup time by 80%.
- Start tuning more quickly than prior versions.
- Various bug fixes and performance improvements.
StroboClip HD Version 1.0.4
Wednesday, September 6, 2017 12:56:00 PM EDT
- Various bug fixes and performance improvements.
StroboClip HD Version 1.0.3
Wednesday, May 24, 2017 11:07:00 AM EDT
- Two separate button combinations to power-on. This avoids accidental power-on.
- MENU/POWER button pressed only, PLUS and MINUS must not be pressed.
- Both PLUS and MINUS pressed, MENU must not be pressed.
StroboClip HD Version 1.0.2
Monday, May 1, 2017 9:48:00 AM EDT
- Various bug fixes and performace improvements.
StroboClip HD Version 1.0.1
Friday, March 10, 2017 11:21:00 AM EST
- Official Release