Input Voltage: 4.8~5.2V DC, Pressure range: -2 to 2 kPa (-0.3 to 0.3 psi), 1/2 pad has voltage divider built-in, Sig pad: 0.5~4.5V output, 0.25~2.25V output., Speed range: -200 to 200 km/h, Working current: 20mA.
Check coupons or create price alert down below. What is best price?
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 and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one great coupon!
Link: Banggood product page
1. ($28.90): bGhOnEy10
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGTRTJ, BGKJHO
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for Matek Systems Analog RC Airspeed Sensor ASPD-7002 is here. The lowest price was: $22.71.
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)).