Camera shutter tester with light source for smartphone and tablet up to 1/1000th

Description

If you are experiencing problems making a purchase please tell me. eBay switched my account from the classic PayPal payment system to the eBay managed payments system and sometimes there are issues.
Listing summary: Affordable and simple to use tester designed for mobile devices. Adjustable light source included. 90 days money back, no questions asked and 24 month warranty. Free priority shipping anywhere in the world!
What you get:
- 2 Camera shutter testers.
- 1 adjustable light source.
- A PDF English manual with detailed information on how to use the device.
- 24 month warranty.
About the product:
- The testers are built by me. Every device will be tested before shipping.
- The tester measures light, not sound.
- The tester works with mobile devices like smartphones and tablets.
It works with iOS, Anroid and Windows phone operating systems.
I do not provide any of the apps. The tester should work with any sound recorder apps or special apps for testing shutters. Free or paid. Buyers will choose the best apps for them and their devices.
- The tester is capable of measuring speeds up to 1/1000th of a second.
- Needs 2AA batteries (NOT included).
-
This model is suitable for a wide variety of cameras. The black box can be used with 35mm cameras and cameras that have a flat back. The cable  is suitable for cameras with bellows, TLR cameras or cameras that have the shutter far from the edge of the back of the camera.
Important information:
- The 1/1000th of a second tests were done with an iPad mini with the TW Recorder free app. Cheaper Android devices with cheaper electronic components, might have trouble to accurately measure speeds that fast.
- The offer is only for the testers. You will need a mobile device (smartphone or tablet) and an app. I do not endorse any mobile devices or apps.
- The tester will not work with PCs. If you want a tester that works with PCs look at my other listings.
-The iPad screen shot shows a test at 1/1000th of a second made with a Canon EOS 1N.
Payment:
- Paypal only!
- Payment must be received within 3 days after the invoice is sent!
Shipping:
- Priority shipping is free anywhere in the world.
- In order to save money on customs taxes, split shipping is available (if needed) for countries outside the European Union. Each split shipping request will be discussed individually.
- Official delivery time is 8-10 days but in some cases this can go to 20-25 days. Please understand that I have no influence over third party organizations  (postal services), weather or other variables that will slow down the delivery and that it is not my fault if your package is late.
- Please allow up to 5 business days for shipping from the moment payment has been confirmed.
Returns:
- 90 days, no questions asked. I stand by my products and they work exactly as advertised.
- Buyer pays return shipping. Please don't insist with other requests!
Other info:
- Please allow up to 2 business days for replies.
- Buyers are responsible for any customs duties, taxes, tariffs or brokerage fees associated with shipping to their respective countries.