SensorE

Sensor-E(Environment sensors) is an app that provides a GUI for using the built in sensors in your Android Phone.
Most Android-powered devices have built-in sensors that measure motion, orientation, and various environmental conditions.Environment sensors measure various environmental parameters, such as ambient air temperature and pressure, illumination, and humidity. This category includes barometers, photometers, and thermometers.
so this app is an interface to measure 3 entities
1)light ->Illuminance.
2)temperature ->celsius
3)pressure->hPa or mbar
other features include
Analog clock
Samsung Galaxy S4 I9500->have the inbuilt sensors!!!!
Due to non-availability of inbuilt sensors in many phones this app is limited to certain to few phones