You can get BSIDE O1 3-in-1 Oscilloscope for $43.99 using coupon code (in Banggood). Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
BSIDE O1 3-in-1 Smart Oscilloscope Graph Multimeter Function Oscilloscope Multimeter Electric Pen 10MHz Bandwidth 2.8″ TFT Color Display 2000mAh Lithium Battery High Accuracy Convenient Portable Tool
Latest coupon code price check (UTC time):
Banggood ($43.99)
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood. Price? Actually this is the best price in history according to CouponsFromChina database!
Link: Banggood product page
Price: $43.99
This is the best price ever noted in my database!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
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. (11.5.2024, $44.99): BGed8f99
Item: BSIDE O1 3-in-1 Oscilloscope
Countries: Greece
2. (10.5.2024, $44.99): BGea157f
Item: BSIDE O1 3-in-1 Oscilloscope
Countries: CzechRepublic, Hungary, Poland, Slovakia(SlovakRepublic)
3. (3.5.2024, $44.99): BG2f0e1b
Item: BSIDE O1 3-in-1 Oscilloscope
Countries: France, Italy
Aliexpress
There’re some similar (or not) items on Aliexpress
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 BSIDE O1 3-in-1 Oscilloscope is here.
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)).