Testing Components Like LED using Multi meter is a mess. However you can't Test Components like Capacitor, Is Transistor NPN or PNP, etc. TESTERA is an exclusive Handy tool which can test your components without any mess. Just Plug them and see results. Specifications of TESTERA are as follows:
- Handy Device and can be Carried Easily
- Can Hang it on Wall of Tools
- Can Check NPN or PNP Transistors
- LED Indication
- Easy to Plug Components
- Long Battery Life
To Check LED:
Just Plug LED into the LED Section and Press the Button. You will see LED Glowing and if not LED is not Working. Easy Enough!! Moreover you can also test IR LED but for that you need a Camera.
Remember to Check Polarity!
To Check Transistor:
To Check if Transistor is NPN or PNP. Plug the Transistor in Order Of CBE and if LED Glows, Transistor is NPN or else PNP Transistor.
To Check Other Components:
To check other Components, Connect Bipolar Components in Test Area and Follow Table:
Capacitor LED Glows Brightly and then Dims away
Diode Glows When Connected in Forward Bias
Resistor Glows According to Resistance of Resistor
Tilt Sensor Glows and Gets off when tilted upside Down
LDR LED Glows according To Light(More the lIght more LED Glows)
Like this You can Test Many Components.