Tacklife VT01 Non-Contact Voltage Tester Detector with LED Flashlight 12V-1000V Voltage Pen with Alarm Mode & Live/Null Wire Judgment
https://www.amazon.com/gp/product…UTF8&
Use coupon code: JI4B6G8A
Price: $9.99 – $3 off coupon = $6.99
Ships free with Amazon Prime.