The 4 Best Sites to Test Your Monitor Refresh Rate
KAIWEETS Thermal Imaging Camera, 256 x 192 Resolution Infrared Camera 25 Hz Refresh Rate, Support Infrared/Visible Light/Fusion Three Modes, Voltage Tester/Non-Contact Voltage Tester with Dual Range: Amazon.com: Tools & Home Improvement
Screen Refresh Rate Tools - Hz APK for Android Download