Dimensions: 530 * 330 * 330mm, Net weight: 14.3kg, Ultrasound frequency: 40KHz, Heating power: 500W, Tank Material: Stainless steel SUS304, Ultrasonic power: 600W, Net basket: standard, Time setting: 1-30 minutes, Heating temperature: 0℃~80℃, Model: PS-100A, Inner tank capacity: 30L, Inner tank size: 500* 300* 200mm, Voltage: 110 US plug / 220V EU plug, Sound reduction cover: standard, Name: Ultrasonic cleaning machine.
Basically copy coupon, view price history or create e-mail price alert. Best price?
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.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. Uhm… There’s no price history (in my database) for this product right now. Well, there is one coupon available right now.
Link: Banggood product page
1. ($266.15): BG564c1f
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: $266.15.
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)).