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Description
Integrated Circuit Tester Transistor IC Tester, Host, Host+3 SOP Test Socket1. Scope of application: can test 74ch series, osmo series, cd4000 series, hef400 series, 4500 series, operational amplifiers, interface chips, optocouplers, automatic transistor identification, voltage regulator voltage identification 2. Integrate more than 1,300 types of chip data models and more than 420 types of transistor data models, covering most common general purpose devices within 24 pins, which can greatly reduce maintenance workload and
1. Scope of application: can test 74ch series, osmo series, cd4000 series, hef400 series, 4500 series, operational amplifiers, interface chips, optocouplers, automatic transistor identification, voltage regulator voltage identification
2. Integrate more than 1,300 types of chip data models and more than 420 types of transistor data models, covering most common general-purpose devices within 24 pins, which can greatly reduce maintenance workload and improve work efficiency
3. Press the Enter key to turn on the machine for the first time and automatically run a self-test. The self-test detects the battery voltage and displays it on the screen after more than two seconds. When the battery voltage is lower than 7v, replace the battery to ensure the measurement accuracy. If If there is no alarm, the measurement work can be started
4. Nativead 10 ad, the theoretical resolution of 5v voltage is 0.0048v
5. Due to the use of batteries for power supply, it is not suitable for measuring high-power thyristors
6. The Zener value must be based on the actual measurement, not just the nominal value
7. The default directory for initialization is the search directory
8. Different test modes: 5v mode, 3.3v mode, auto mode
9. There are seven buttons on the panel, which are respectively used for up, down, left, right and typing keys and hotkeys o, p
10. The up and down keys are used to adjust the catalog and change the model, and the left and right keys are used to move the cursor left and right to select the item to be changed
11. The input key is used to change the machine and execute the test command
12. Use two AA 1.5v batteries (not included), press Enter for more than 2 seconds to turn on the machine, and the current battery voltage will be displayed automatically when the machine is turned on. When the battery power is too low, replace the battery. Too low voltage will affect the reliability of the test results. and automatic shutdown protection
13. After 60 seconds without any operation, it will automatically shut down
14. Test socket: SOP16 narrow body, SOP20 medium body, SOP24 wide body
The device positioning method is as follows:
1. Place the chip and optocoupler on the top of the alignment, and the 1-pin ic alignment seat
2. The triode on the left, mostly three slots
3. The 13 and 14 pins of the ic regulator are placed
Note: Transistor display pin sequence from left to right corresponds to 10-foot, 11-foot, 12-foot ic block (not built-in battery or adapter)
Specification:
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Shipping Notes
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 4
Review after a year of use
So i had this Vacuum for a little over a year, and i am happy with it, but in the past couple of months some issues showed up / or where kind of present the whole time because of how it works...
- Its gonna find everything, and its gonna eat everything: Cables on Floors in general, behind couches, or behind sideboards, corners of lightweight carpets - gonna get stuck in the brush or robot looses contact to the floor with wheels (f.e. behind media sideboards)...you have to make sure nothing is on the floors where it could get stuck, even shoes are sometimes difficult for it.
- Under Couch issue (all the time issue): the Lidar Sensor is on top of the robot (highest point) If you have a couch where the fabric underneath hangs a little down, the robot goes there but gets stuck because the Lidar sensor cant see anything, because the fabric hangs down on it. And im not talking ripped fabric - its just bulging down a little but thats enough in my case to cover the Sensor and its just sitting down there - spinning and turning, until i get under the couch and push the fabric up a little...
- Battery Runtime (all the time issue): I have aprox. 1400sqft living space under AC - it needs up to 1-2 battery charges on "standard mode" to clean all floors 1x.
- Corner or Edge Cleaning brush (showed up after aprox 11 months): starts to squeak sometimes really loud. Since i changed them regularly as recommended, i made sure its always clean beneath the brush and the mount, so no hair or any other debris down there.
- It has problems with sliding doors (all the time issue): scans trough the doors and wants do go there but cant of course. You have to go into the app and draw a line close to sliding doors so it doesn't try to go there....
- Biggest inconvenience (showed up after 12 months): it happens to me almost every time after a clean, It drives back onto the base station - and it feels like the charging Pins either on the base or on the robot, lose contact, and the robot just discharges and next time you want to use it (f.e next day), its Batteries are empty, and you have to try turn it back on (with empty batteries) and wait for it to charge up. i cleaned both pins on the base station and the contact surfaces on the robot (no, no protective plastic strips on pins or contacts) but it doesn't really seem to help.
- Sometimes the app / Robot looses Maps (sporadically): The first thing is a mapping. Robot drives around and scans the whole area - splits the map into different rooms. You can adjust this Rooms and "No go zones" via the app. Sometimes those maps inside the app go "bye bye" and you have to do it all over again.
Other than that its a very nice robot and it does its thing.
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Reviewed in the United States on December 14, 2025
★★★★★ 2
App/Vacuum Loses maps after 3 months of use.
I'm hoping someone from Eufy is monitoring these reviews. We love...loved our Eufy. It works great. The mapping and map editing is so nice to be able to program the vacuum to clean different rooms each day. We love the self cleaning system that empties the Eufy after each use. We owned a Roomba a few years ago with the self empty option and it never worked. We had it replaced by Roomba twice and it still never worked. This one works exceptionally well. BUT here we are 3 months later and the app is losing the map. nearly every day, the system has to re-map our entire space. Yesterday, it had no map and went down the stairs. The unit is supposed to have a sensor to prevent it from going where there are drop offs but apparently this issue with the mapping is also showing up in the unit being unable to stay in the cleaning area. I'm hoping that someone from Eufy will reach out to help. Thanks,
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Quiet, that's about the only good quality
UPDATE: Moving to 5 stars! Quickly after my 2 star review (below) the seller reached out and askked to exchange the defective product for an upgraded model at no cost to me. They were attentive and quick in responding, and I received a replacement version that also included the mopping functionality (The first didn't have this), and it works as expected. Customer service was too notch. I wouldn't hesitate to buy again.
This is a lot quieter than my original Roomba, that is still running strong...but I wanted a 2nd robot vac so I could run one on the main floor and 2nd floor of my home. This one doesn't fit the bill, and I will be returning. I ran it while I was at home, and it stopped 4 times, telling me I needed to clean the brush. There was absolutely nothing bound on the brush any of the times. But had I not been home, it wouldn't have finished cleaning because it stops completely when it thinks there is hair. Then, another time, it just stopped running. It didn't say anything, so I don't know why it stopped. I assume it thought it was done, but the whole level of my home wasn't finished. This was all in just the one time I attempted to run it for 1 cycle. When I pushed the start button again, it said something to the effect of starting cleaning, so that's what makes me assume the last cycle was over. It does clean well, and is very quiet; however, it just stops for no reason far too often. I want it to run while I'm at the office, which obviously won't work if I have to be here babysitting it for the imaginary dirt on the brush. This will unfortunately be getting returned. I think I'll stick to the Roomba brand, as I have far less issues with my 10+ year old vac than this new one with all the nice features.
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Reviewed in the United States on March 4, 2025
★★★★★ 3
Decent robot vacuum, but struggles with dog hair
The setup was straightforward and the self-empty station is a nice feature. It navigates the house fairly well and does a decent job picking up everyday dust and debris on hard floors.
Where it struggles is with dog hair. With a shedding dog in the house, I noticed it tends to leave behind quite a bit of hair, especially along edges and in areas where it tends to accumulate. It works better for lighter debris but doesn’t seem powerful enough to keep up with heavier pet hair.
Pros:
Easy setup and app integration
Self-empty station is convenient
Navigates rooms fairly well
Cons:
Struggles with dog hair
Not as strong as expected for pet households
Bottom Line:
This vacuum works fine for general cleaning and light debris, but if you have a dog that sheds a lot, it may not keep up as well as expected. For pet owners specifically, it might not be the best fit.
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Reviewed in the United States on March 11, 2026
★★★★★ 1
Very Disappointed with this Vacuum
After having a Shark Robot Vacuum for many years, my husband decided to upgrade to newer technology (easier boundary settings, better mapping etc)
On a good note, when this thing works - it works great. One of my biggest complaints with the Shark was I had to put physical boundary strips at the top of the stairs etc. This Eufy is very easy to set "no go zones" on the app, works famously in that aspect. This vac also seems to "work" in a more organized manner. I can see on the app exactly what was cleaned after every scheduled cleaning etc. The Shark would just buzz around the house all willy nilly, but this Eufy seems to be very organized in the cleaning, not missing anywhere. Now for the most aggravating part. I have my Eufy scheduled to clean every night @ 1:00 am, while we are sleeping. Most nights @ 1:15 am I get a notification on my phone "Roller Brush Stuck". Well obviously I don't see the notification until morning. I go "find" Eufy (which is easy with the app - shows you right where she is - another nice thing compared to the Shark) Pull the Roller Brush, which mind you, nothing is wrong with, it is not stuck, there is nothing wrapped around it etc. Put it back in & restart. This has done this since day one, brand new out of the box. After doing some scouring of the Internet, I see that this is a big complaint with many other owners of this model. From what I gather, Eufy is aware of this and it is a known problem. I called Eufy Customer Care after about using this for one week. The phone call lasted over 45 minutes (part of my life that I will never get back!) Now mind you, the representative was very helpful & thorough. We walked through a couple procedures, (The Rep had me pull the roller brush etc & report to her what I was "seeing") Which again, I had performed everything the Rep had me do religiously for the past week, but No, she like wouldn't take my word for it, I had to do all this again while on the phone with her - - almost like she didn't believe me at first. Next, the Rep offered to send me a "newer design roller brush" Ok, cool, if it solves the problem let's do it - I just wanted to get off the phone & on with my day. Oh wait, there are no new design roller brushes in stock. Now I'm told to send just the robot back (not the dock) I told the Rep to send me a call tag, as I wasn't going to pay shipping on a "brand new used one week" item. Oh wait, now she has located the replacement roller brushes. So here we are back to the original solution, she will send me a replacement roller brush. Took my name, my address, phone number, name of first & last born children etc. Just a long drawn out process to send me the "fix" for their known manufacture problem. So to make my long story even longer, here I sit a month and a 1/2 later without ever receiving the replacement brush and an unreliable product who doesn't complete her "mission" most nights. I wish this vacuum was still within the 30 day Amazon return period, because I would have sent it back after experiencing this defect. However my husband had bought this for me for Christmas (before the date that Amazon offers their extended holiday returns window) I didn't even unbox this vacuum before the 30 days were up.
The App with the mapping & the expansive scheduling options is great compared to the Shark, but I bought the Eufy to vacuum, which she fails @ nightly.
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Reviewed in the United States on February 5, 2026
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