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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
3 In 1 Oscilloscope Transistor Tester Signal Generator 10M Bandwidth Burn-In Proof, FNIRSI DSO-TC41. All round intelligent anti burn protection, safe measurement, comprehensive protection for your safety 2. Higher performance 10mhz bandwidth +48MS sampling, accurate capture of the waveform, master every detail 3. Efficient detection and intelligent identification of easy to test devices, such as diodes, zener diodes, thyristors, capacitors, resistors, inductors, transistors, mosfet 4. 13 kinds of signal waveforms, can meet a variety of test needs
1. All-round intelligent anti-burn protection, safe measurement, comprehensive protection for your safety
2. Higher performance 10mhz bandwidth +48MS sampling, accurate capture of the waveform, master every detail
3. Efficient detection and intelligent identification of easy to test devices, such as diodes, zener diodes, thyristors, capacitors, resistors, inductors, transistors, mosfet
4. 13 kinds of signal waveforms, can meet a variety of test needs
5. Built-in 1500mAh lithium-ion battery, Type-C charging, automatic sleep mode, suitable for long-time work
6. USB share waveform data, easy to manage the oscilloscope, and connected to the PC via USB cable for secondary analysis
Functional parameters:
1. Screen: 2.8-inch TFT color screen
2. Backlight: adjustable backlight brightness
3. Power supply: TYPE-C (5V/1A)
4. Battery: 3.7V/1500mAh
5. Language: Chinese, English, German, Portuguese, Spanish, Japanese, Russian, Korean
6. Size: about 90 x 142 x 27.5mm
7. Weight: about 186g
Oscilloscope parameters:
1. Real-time sampling rate: 48MSa / s
2. Analog bandwidth: 10MHz
3. Input impedance: 1 megohm
4. Coupling method: AC/DC
5. Test voltage range: 1:1 probe: 80Vpp (+40V); 10:1 probe: 800Vpp (+400V)
6. Vertical sensitivity: 10mV/div-10V/div (X1 gear)
7. Vertical displacement: adjustable with indication level
8. Horizontal time base range: 50ns-20s
9. Trigger mode: automatic, regular and single (Auto/Normal/Single)
10. Trigger type: rising edge, falling edge
11. Trigger level: adjustable, with instructions
12. Waveform freeze: Yes (HOLD function)
Transistor parameters:
1. Diode: forward voltage drop less than 5V
2. Voltage regulator diode: 0-32V
3. Field Effect Tube: JFET, IGBT, MIOSTET
4. Unidirectional thyristor: turn-on voltage less than 5V, gate level
5. Bidirectional thyristor: trigger current 6 less than mA
6. Capacitance: 25pF-1000uF
7. Resistance: 0.01 ohm-50 megohm
8. Inductance: 10uH-1000uH
Signal generator parameters:
1. Output waveform: support 13 kinds of waveform output
2. Waveform frequency: 0-50KHz
3. Square wave duty cycle: 0-100 percent
4. Waveform amplitude: 0.1V-3.0V
Packing list:
DSO-TC4 tester x 1
P1600 oscilloscope probe x 1
Adaptor x 1
TYPE-C charging cable x 1
Normal probe x 1
Test hook x 3
Specification:
| Package Weight |
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.4 ★★★★★
Based on 1216 reviews
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Product Reviews
★★★★★ 5
Very firm and durable
Color: Cool Grey, Size: 24x24x12 inch
worked great for husbands surgery recovery. Very affordable, firmness was great, looked nice on the bed and also used it for the grandkids when they were watching a movie. Moved around with ease. Didn't use it to sleep with all night though. He could only make it half the night but that wasn't the pillows fault. It was the cast on his arm. Definitely did its purpose after surgery and the need to sit up in bed more. highly recommend
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Sasstie Wedge Pillow
Color: Cool Grey, Size: 24x24x12 inch
Perfect. I used it when I was recovering from hip surgery. Relieved a lot of pain in my hip and knee at a time when I needed relief.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Comfortable, firm, great for positional sleep therapy
Color: Cool Grey, Size: 24x24x12 inch
This is just what I needed to breathe better in my sleep, my doctor recommended a pillow like this for sleep apnea symptoms. I have an upcoming surgery too, so i'm glad I was able to test it out a week prior and see how it can help me prop up in bed. Feeling better about my upcoming recovery knowing i'll have this great pillow to support me!
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Reviewed in the United States on April 4, 2026
★★★★★ 5
Literally perfect and exactly what I needed!
Color: Cool Grey, Size: 24x24x12 inch
I can't recommend this enough! It was exactly what i was looking for! I have an annoying habit of researching everything for months before I purchase something that will get used this often. I finally decided on this one and I was very pleasantly surprised. I needed a wedge pillow to put at my back while sitting in bed. Mostly for when I'm working on my laptop. This one was the perfect height and perfect fit for me.I'm a female that is 5'4 and weigh about 117pds. I wanted something firm enough to support my back, and this most certainly does! It had a very pleasant appearance with the light gray sides. It has a removable cover I can take off and wash when needed. It's portable enough to move from room to room, also works great on my couch and it has amazing versatility. It can also be used as a pillow for someone that might need to sleep at a slight incline. It also works if you need to prop your legs up.
It came vacuum packed. Once opened It said to let is sit for at least 24-48 hrs to give it time to properly inflate. For me, It plumped right up immediately! Again, from someone that does her research, if your looking for something like this at a reasonable price, this is it!
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Reviewed in the United States on May 10, 2026
★★★★★ 5
It was worth every cent
Color: Cool Grey, Size: 24x24x12 inch
I have BPPV. It's a condition where tiny ear crystals come out of place and move within your ear canals - this fools your brain into thinking you're in motion, causing severe dizziness. The most common treatment is the Epley Maneuver, and that actually helps a lot. However, I was going through a period where every single day I'd wake up with severe dizziness. Even if I managed to do the Epley Maneuver and it worked, the entire rest of the day would be ruined because I'd still feel generally unwell and nauseous. I ended up getting a book about BPPV and the author strongly recommended sleeping at at least a 30 degree angle. So, that's why I ended up buying this wedge pillow...
I started using it April 26 and today is May 17. Since I began using it as a pillow, I have not woke up dizzy again. That is so huge! It may be that sleeping at a 30 degree angle deserves 5 Stars but thought I'd give this pillow 5 Stars too, as it's been a great experience. If you suffer from this, here's how the angle should be...If you lay your head on a pillow and open your eyes, you should not be looking at the ceiling. With the right angle, you should be looking at where the wall meets the ceiling. If so, you know you're at the right angle.
As far as pillow itself, I'd say the pillow case fabric is of average quality. Not really remarkable in any way. It seems decent. Good value for the price. The inside is firm (which is just what I needed) but comfortable, and I tend to not move around much the entire night. I like this very much and if it does start wearing out, I'll definitely come back here and buy another. Would recommend.
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Reviewed in the United States on May 17, 2023
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