$18.99 – BSIDE X2 4 in 1 Detector Tester (Banggood, Aliexpress: Color: Black, Item Name: Multimeter, Brand: BSIDE, Safety Level: CAT II 600V, Size: 160x 28x 31mm (the best price with coupon)).
The coupon price for BSIDE X2 4 in 1 Detector Tester is $18.99 (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Do you want to know what the best price is?
Latest coupon code price check (UTC time):
Banggood ($18.99)
Banggood warehouse is located in China. But wait a sec… Is it a good price? Pretty good price – average ($20.11) is higher than current one! Only one coupon available!
Link: Banggood product page
Price without coupon: $19.99
1. ($18.99): BGMAI666
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BGXIFD261, BGTOOS729
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
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
Here is price history (for all/most countries) for BSIDE X2 4 in 1 Detector Tester. The lowest price was: $17.45.
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)).