$13.99 – SGS07 3 in 1 Digital LCD Soil Meter (Banggood, Aliexpress: SGS07 3 in 1 Digital LCD Soil Meter Soil PH/Moisture/Temperature Tester with Backlight for House Plants Garden Lawn Farm (the best price with coupon)).
You can get SGS07 3 in 1 Digital LCD Soil Meter for $13.99 with coupon (from Banggood). Just check coupons out (with price alert and history). What is best price?
Latest coupon code price check (UTC time):
Banggood ($13.99)
Banggood warehouse is located in China. I think you want to know if the price is good. This is the best price in history according to CouponsFromChina database! There is one great coupon!
Link: Banggood product page
Price without coupon: $14.99
1. ($13.99): BG678707
you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
This is the best price ever noted in my database!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
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 SGS07 3 in 1 Digital LCD Soil Meter is here. The lowest price was: $13.99.
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)).