I have just checked coupons. The lowest price I could get is $44.99 for SCO2 Dual Channel Digital Oscilloscope 50M Sampling Rate 10Mhz (in Banggood). You can create price alert here, copy coupons and view price history. Do you want to know what the best price is?
SCO2 Dual Channel Digital Oscilloscope 50M Sampling Rate 10Mhz Analog Bandwidth One Key AUTO Anti Burning – #C
Latest coupon code price check (UTC time):
Banggood ($44.99)
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now… Isn’t it too expensive? It looks like it’s a good price (lower than average ($46.72)).
Link: Banggood product page
Price: $44.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGb05d6b, BGTOOS729
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
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 SCO2 Dual Channel Digital Oscilloscope 50M Sampling Rate 10Mhz 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)).