This circuit can be used as a warning device which triggers an alarm whenever the temperature exceeds a preset level. It can also be...

This timer is a useful device for people who often forget to turn off devices in time. Suppose you want to boil water in...

This 6V battery-operated circuit triggers an acoustic piezobuzzer when a sound is detected. It can also be used as a cheap acoustic-type glass break...

This system can be used in offices or hotels to call an attendant from seven different locations. The circuit provides audio indication of the...

Milliohm meter is used to check low resistance of connecting wires. It can deduce the resistance of thick wires, condition of contacts and the...

With booming solar industry there is a need for measurement instruments to test the various components of solar-powered systems COL (RETD) N.C. PANDE JULY 2011: Solar...

Have you ever accidentally left your front door ajar and had a pet or your little kid escape? Here is a smart solution to...

Higher analogue bandwidth, higher sampling rate, higher memory points and faster response are the biggest trends seen in oscilloscopes. But inbuilt support for connectivity...

This resistance meter can measure resistances up to 200 mega-ohms. The value of the resistance is indicated on a linear meter scale (0-100 uA)....

Canon claims to have brought a technological edge in printers with its Full HD Movie Print that allows consumers to capture and print favourite...