A peak flow meter is a handheld device that measures airflow rate and can help those with respiratory conditions like asthma monitor their condition.

To check your blood sugar levels at home, you can use a glucose meter or a continuous glucose monitor. Here's what you should know about both devices.

This time I bring an electronic kit for beginners, this is a very cheap and interesting device that displays audio levels into the LEDs just like any audio level bar indicator will do. It is simple ...