$37.99 – FNIRSI DSO-TC3 Digital Oscilloscope Transistor Tester Function Signal Generator 3 in 1 Multifunction Electronic Component Tester – DSO-TC3 (Standard).
I have checked all old coupons and price is $37.99 for FNIRSI DSO-TC3 Digital Oscilloscope (in Banggood). Price history, coupons and price alert are available on this page. Best price?
Latest coupon code price check (UTC time):
Banggood ($37.99)
Banggood warehouse is located in China. Is it good price? It looks like it’s a good price (lower than average ($40.58)). I found 2 active coupon codes, cool.
Link: Banggood product page
Price without coupon: $42.99
1. ($37.99): BGc5c2d4
2. ($38.99): BG64d751
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
1. (25.2.2025, $35.11): BG419c3c
Item: FNIRSI DSO-TC3 Digital Oscilloscope [EU]
Countries: Poland
Old coupons (from the oldest to the newest): BGM1TOOLS88, BG6MEGA24, BG20236Tool, BGTOOS729, BGbde828, BGfce136, BG1609cb
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – FNIRSI DSO-TC3 Digital Oscilloscope [EU] ($37.99)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for FNIRSI DSO-TC3 Digital Oscilloscope is here. The lowest price was: $35.99.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).