Use coupon and get TS-30A Shortkiller PCB Short Circuit Fault Detector Box for $78.62 (from Banggood). You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
Power Voltage: 0-5.5V, Short circuit restore., Short killer is good for detecing all kinds of short circuit., It can detect short circuits in seconds and fix it., Max Ampere: 0-30A, , Input: AC110V~230V /50/60HZ /5A, It can be use to decect shortcircuit on any cellphone and laptop pcb., Support output voltage 0-5.5v current 0-30A.
Latest price update (UTC time):
Banggood ($78.62)
Banggood warehouse is located in China. Well, is it a good price anyway? The average price for this item is $79.05, so I think it’s a good price! You can get coupon down below.
Link: Banggood product page
Price without coupon: $85.46
1. ($78.62): BGALL8
you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
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:
Old coupons (from the oldest to the newest): BGherra, BG00c906, CityadsTool, BGGines, BGPTL088, BGCAPITALOS8, BG8FORMULAMX, BGBFDAY8, BGNEWYEAR8, BGSPRING8OFF, BGHONEYSP, BGESJY8
(you can check these old coupons out, but these probably won’t work)
Aliexpress
There’re some similar (or not) items on Aliexpress
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 TS-30A Shortkiller PCB Short Circuit Fault Detector Box? There we go.
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)).