Magene S3+ Speed Cadence Bike Sensor (Banggood, Aliexpress: Name Cadence&speed dual mode sensor, Temperature -10-50℃, Endurance 500h, Volume 8.85×29.8×38.3mm, Model S3+ speed/cadence sensor, Battery CR2032, Waterproof IP66, Sensor Geomagnetic sensor, Weight 8.8g, Wireless interface bluetooth smart / ANT+ (the best price with coupon)).
Go down and check coupons out. Remember to check price history if it is available. Let’s see what best price is ATM.
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 code price check (UTC time):
Banggood
Banggood warehouse is located in China. CouponsFromChina software could not find any coupon for this product in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): BG5800a4, BGBICYCLES, 00c906, BG00c906, 2022ACTIESNL
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Here is price history (for all/most countries) for Magene S3+ Speed Cadence Bike Sensor. The lowest price was: $12.99.
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)).