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433, monochrome User Input: joystick Interfaces: USB, 72, 5600-6000MHz in 50MHz steps Accuracy: +/- 0.5dB Attenuator: 30dB (internal) Battery: 3.7V li-ion cell, 1200, 128x 64 pixels, 2400, 320mAh Current Consumption: 35mA Battery Life: about 8 hours Auto Shutdown: 5 minutes timeout Charging: Micro USB cable Display: OLED, power control via CDC Antenna: 5.8GHz “Sniffer Antenna” (linearly polarized 2dBi dipole) Adapter: Male to Male SMA adapter, Power Level: -20dBm up to +30dBm Calibrated Frequencies: 35, 10440 size
Aliexpress
There’re some similar (or not) items 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 Hong Kong.
Link: Banggood product page
1. ($92.00): Email5
2. ($92.07): aff7off
this code has to be applied 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): e2bcea, 67356a, 65d613, 502C6B, BGBCFPV, BGBCBG10, bgchinafest, BGBFAFF2019, BGCITYADS2019
(probably won’t work, but you can try them out)
Price history and price alert
Price history (for all/most countries) for V2 ImmersionRC RF RC Power Meter is here.
Price records source(s): Gearbest, 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)).