You can get Beitian Mini GLONASS/GPS BN-180 RC Module for $16.59 using coupon code (in Banggood). Price history, coupons and price alert are available on this page. You probably want to know what is the best price?
Frequency: GPS L1, SBAS L1, BeiDou, Channels: 72 Searching Channel, Galileo E1, Electrical Characteristics, GLONASS L1, GLONASS, Receiving Format: GPS, Galileo, Chipset: M8030-KT, QZSS and SBAS, BeiDou B1
Latest coupon code price check (UTC time):
Banggood ($16.59)
Banggood warehouse is located in China. I can’t find any active coupons for this product in Banggood. Is it a low price? This price is higher than average price ($9.00) for this item.
Link: Banggood product page
Price: $16.59
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGGPS95, BGGPS85, 13f142, BGCHRIS75, Parts8, BGCuponation10, BGDAVIS, BGGAL8, BGJON8, BGRCParts8, Tabby20, BG1efeb0, 8Couponsde, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG8RCToy, BGRCT10, BGJUNEGSG9, Cuponation9, BGMatt2022, BGToys8, BG589b2e
(there’s a little possibility that old coupon will work)
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Beitian Dual GLONASS+GPS BN-180 Micro Double Smallest Mini GPS Antenna Module UART TTL For CC3D F3 RC FPV Racing Drone | $21.21 | – |
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 Beitian Mini GLONASS/GPS BN-180 RC Module.
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)).