Ratings may include incentivized customer reviews.
What Customers Are Saying
The product has mixed reviews. Some users found it useful and affordable, but the majority reported significant issues with functionality and reliability. Key problems include a poorly designed companion app, low image quality, short USB cable, and frequent device failures. While a few reviewers noted the borescope worked well for basic tasks when functioning, the overall consensus is that it is a disappointing product with many frustrated customers.
Customer review summary generated by AI, including incentivized reviews.Does not work at all
Would Not RecommendBought this, installed the app, and connected it. Despite my device meeting all the specifications, the app kept telling me that the boroscope was not connected. Which it was. I tested on another device with the The same app and got the same results.
the app makes this tool worthless
Would Not Recommendthe app for this tool does not work. the company does has not responded with a fix
Thanks for sharing your feedback. We’re sorry your experience wasn’t satisfactory, as we take pride in our long history of making high quality tools....

Amazed how well it works
Would RecommendI was hesitant to purchase this camera after reading the reviews, but I needed a way to confirm there was a floor drain beneath a stacked washer dryer in a very tight closet. So, I purchased the Klein Tools ET16 Borescope, and after downloading the app and plugging the cable into my Pixel 7 the camera view coupd be seen on my phone. Threading the armored cable below the washer I was able to locate the drain. It also allowed me to view as I threaded some plastic tubing to the drain so we could pu...
Basic boroscope
Would Not RecommendDisappointed be the quality of the image. Minimal depth of field in the focus limits it's usefulness
Verified Purchaser
Wasre of money
Would Not RecommendThe only thing that works is the light. Tried it on 8 different phones and only get a black screen.
From Klein Tools
Black screen
Would Not RecommendBeen wanting one for a while, got it black screen on the app light turn on but there is no image useless product back it goes
From Klein Tools
Disappointing.
Would Not RecommendWorked for about an hour before the camera quit, and nothing I did could get it to work again.
Verified Purchaser
AMAZING!
Works phenomenally AFTER I figured it out! EVERYONE LISTEN: if you are getting a solid black screen on the app, pull the usb-c plug out and flip it 180°! it took me 20 minutes before figuring out that one side of the usb-c plug had to be facing up, UNLIKE a phone charger! KLEIN, an insanely easy fix would be to color the side that should be facing upward! I'll be using a paint pen on mine! :)
From Klein Tools
NO HELP LINE FOR PRODUCT-------------WASTED 40.00
Would Not RecommendTHIS DID NOT WORK ON MY ANDRODE PHOHE WICH WAS BOUGHT IN2023
Verified Purchaser
works well
Would RecommendI bought this to look down a sewer pipe. I downloaded USB Camera Viewer and it worked perfectly. Not bad at all for 40 bucks.
Impressed
Would RecommendEasy to use and the camera quality was better than expected for the price
Verified Purchaser
Et16
Would Not RecommendApp does not work, just a black screen.... Very disappointed.... trash!!!
From Klein Tools
Worked flawlessly
Would RecommendAfter reading so many negative reviews about this product I almost passed on it and bought a more expensive model with the built-in screen....I'm so glad I didn't. I opened the box, scanned the QR code, downloaded the app and it was working within 5 mins....I mirrored my phone screen to a TV and I was witnessing the cameras travels on a big screen.....two thumbs up....this will only work with an Android phone....so do not buy it if you use Apple.....
Useless
Would Not RecommendI bought this with intention of using it the same day. I downloaded the app and followed the instructions. The light came on but there was no picture. I looked the issue up and it seems as if the Klein app is the issue. I downloaded a generic borescope app and it worked. I might be able to overlook the issue with the app, but the USB pigtail is so short that I anticipate failure would happen quickly. All in all, I would say this thing is junk. I expected more from Klein. Thankfully there hand ...
Verified Purchaser
Thanks for sharing your feedback. We’re sorry your experience wasn’t satisfactory, as we take pride in our long history of making high quality tools....

No good no pictures just lights
Would Not RecommendReceived as gift, how do you tell your son it's crap. After telling him how good Klein tools are, the best best you can buy.
From Klein Tools
Worked great at first
Would Not RecommendI had bought it several months ago and it worked like a dream. Had to get a new phone and when I downloaded the app, I could no longer use the tool. Rather upset
From Klein Tools
ET16 Not Working at all.
Would Not RecommendI bought this a year ago it worked for a little while and has not worked for over a year. I'm really really aggravated with this item.
From Klein Tools
Admittedly defective
Would Not RecommendI started it up and followed the directions. The pictures I took did not display. I went to the Klein website. There was a very low rating for this product. They posted reviewers comments about the defective software. I have returned this product.
Verified Purchaser

Thanks for sharing your feedback. We’re sorry your experience wasn’t satisfactory, as we take pride in our long history of making high quality tools....