I am monitoring price for KWS-AC301 8 in1 Voltmeter Ammeter Energy Meter AC301L-100A and it is for $18.94 now (in Banggood). Just check coupons out (with price alert and history). What is the best price?
485 communication：AC301-100A no 485 communication /AC301L-100A with 485 communication., Frequency: 50-60HZ, Voltage: AC50-300V, Power Factor: 0.01-1PF, Timing: 0-999, Current: 0-100A, Shunt way：Built-in, Power: 0-22KW, Capacity: 0.01-99999Kwh, Temperature: -20 ° C to 150 ° C
Latest coupon code price check (UTC time):
Banggood ($18.94)
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. What about the price? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $16.02)
Link: Banggood product page
Price: $18.94
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG073931, BGAC301, BGAlerabat1, 2022ACTIESNL, Terence, 8Couponsde, MVC8SPRING, 8BGwbg2204, BG162713, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG00c906, BG589b2e
(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
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 KWS-AC301 8 in1 Voltmeter Ammeter Energy Meter AC301L-100A.
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)).