Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Impedance: 0.0- 6000.0Ω (0.1Ω), Item size: 76 * 30.5 * 15.6mm / 3.0 * 1.2 * 0.6in, Package weight: 23.35g / 0.8ounce, Package size: 85 * 40 * 20mm / 3.3 * 1.6 * 0.8in, Power accumulation: 0–9999.99Wh (0.01Wh), Power calculation: 0.00-160.00W (0.01W), Work pressure: 80-106Kpa, Current consumption: < 0.02A, Alarm mode: siren sound, USB D+ voltage: 0-3.30V (0.01V), Capacity accumulation: 0–99999mAh (0.001Ah), Full charge threshold parameters: < 2W / 0.5hours, Timed charge reminder settings: 24-hour countdown, Color: black, Temperature: 0-100℃ (1℃), Operating temperature: -10 to +60℃, Timing time: 999H59M59S (1S), Voltage: 3.60-32.0V (0.01V), Refresh time: > 500mS / time, Working humidity: 10 to 80 (no frost), Display type: micro-power LCD module LCM white font, USB D- voltage: 0-3.30V (0.01V), Measurement ranges (and resolution accuracy): , Measurement rate: about 0.5 time / S, Current: 0.00-5.00A (0.01A), Output interface: USB, Input interface: USB
Aliexpress
I could not find it on Aliexpress. 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. One coupon is available. Cool!
Link: Banggood product page
1. ($14.54): BGGines
you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGCLZY, BGherra
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for FNB18 32V 160W USB3.0 USB Tester.
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)).