Smart Checker is a free mobile application developed by Technonia for Android devices. This utility tool works with radiation, electromagnetic waves, ultraviolet light, temperature, and humidity sensors. It allows users to connect their mobile phones to the audio jacks to measure radiation, electromagnetic waves, ultraviolet rays, temperature, and humidity levels. The measured values are then displayed in the application.

The interface of the Smart Checker application is simple and easy to use, making it accessible to users of all ages. The application provides accurate measurements of radiation, electromagnetic waves, ultraviolet rays, temperature, and humidity levels, making it a reliable tool for those who need to monitor these factors.

Overall, Smart Checker is a useful application for those who want to keep track of the radiation, electromagnetic waves, ultraviolet rays, temperature, and humidity levels around them. It is a reliable tool that provides accurate measurements and is easy to use.