Очень простой секундомер

This is a great, simple spirit level combined with a compass.

A very reliable compass combined with a spirit level.

Super simple flashlight! Use your screen light and / or your camera flash as a light...

A super simple and very precise metronome! 10 - 250 bpm can be selected very quickly.

A simple metal detector, that displays the ambient magnetic field in micro Tesla Set...

Measure the ambient illuminance in lux or foot-candle with your light sensor.

A very accurate compass with many functions: Spirit level, magnetic field.

A simple and easy-to-use stopwatch.

A simple ruler to measure the length. Features: inch and cm.