IR Signal Tester is a simple utility for testing infrared (IR) signals using your phone’s camera.
Check if a remote control is working, compare signal strength between remotes, or detect infrared light from IR LEDs — all in real time.
No ads, no fear-based claims, just a practical tool that works.

What the app does
Most infrared remotes and IR LEDs emit light that phone cameras can detect — even though your eyes can’t.
IR Signal Tester makes this visible and measurable.
Use it to:
Test TV, AC, and media remotes


Check if a remote is weak or failing


Compare signal strength between remotes


Detect infrared light sources and IR LEDs



Features
Live IR Detection
Real-time camera view


Clear “IR detected” indicator


Signal strength meter (weak → strong)


Remote Control Test
Guided 3-second test


Signal health results: Good, Weak, Intermittent, or No Signal


Helpful explanations for each result


Compare Remotes (Pro)
Test two remotes side by side


Compare signal strength and stability


Quickly see which remote performs better


Clean & Private
Works completely offline


No accounts, no tracking


Camera access only, used solely for IR detection



Who it’s for
Anyone troubleshooting a TV or AC remote


Technicians and installers


DIYers and electronics hobbyists


Anyone who wants a simple way to check infrared signals



Important note
IR Signal Tester detects infrared light signals, not hidden cameras or surveillance devices.
Results depend on camera hardware and lighting conditions.