I have checked all old coupons and price is 38.99 USD for FNIRSI GC-01 Geiger Counter Nuclear Radiation Detector (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Best price?
Latest coupon and price update (UTC):
Banggood (38.99 USD)
Banggood warehouse is located in China. Hmmm… There is no active coupon in Banggood at this moment. Well, is it a good price anyway? Current price is the lowest in history (according to CouponsFromChina database)!
Link: Banggood product page
Price: 38.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Coupon (15.6.2024, $38.99): BG24MEGA695
Item: FNIRSI GC-01 Geiger Counter Nuclear Radiation Detector
Countries: Poland
Coupon (16.5.2024, $40.99): BG575295
Item: FNIRSI GC-01 Geiger Counter Nuclear Radiation Detector
Countries: Greece
Aliexpress
There’re some similar items on Aliexpress in my database. There may be some other items though.
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
FNIRSI GC-01 Geiger Counter Radiation Dosimeter | 51.14 USD | – |
 |
FNIRSI GC-01 Geiger Counter Radiation Dosimeter | 55.35 USD | – |
 |
FNIRSI GC-01 Geiger Counter Radiation Dosimeter | 57.81 USD | – |
Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for FNIRSI GC-01 Geiger Counter Nuclear Radiation Detector.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).