$15.99 – Function Track cycling speed or cadence, Link method Bluetooth 4.0 ANT+, Weight 9.2g, Voltage 3V, Waterproof IP67, Using time 300 hours, Battery 220mAh CR2032, Brand CYCPLUS, Color Black, Standby time 300 days, Size 29.5mm*38mm*9.5mm, Product Name C3 Bike Cadence Speed Sensor.
Right now the best price with coupon code for CYCPLUS C3 Cadence Speed Bike Dual Sensor is $15.99 (in Banggood). Just check coupons out (with price alert and history). Do you want to know what the best price is?
Latest price update (UTC time):
Banggood ($15.99)
Banggood warehouse is located in China. Too bad there’s no coupon right now in Banggood. Is it cheap? According to my database, the average price is $17.79 and current price is $15.99, so it’s probably a good price!
Link: Banggood product page
Price: $15.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): Terence, BG440fbb, Tabby20, BG43737a, BGRBIKCN07, BG4947c0, 8Couponsde, MVC8SPRING, BGb78687, BG005d1c, BG06da13, Cuponation9, BG8ReviTrage, BG00c906, BG589b2e
(you can check these old coupons out, but these probably won’t work)
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
Do you need price history chart (for all/most countries) for CYCPLUS C3 Cadence Speed Bike Dual Sensor? There we go. The lowest price was: $14.99.
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)).