meter

If you want simple meter the intensity of the light in a simple way. This circuit is very interesting, because with a LED display with 5 levels.The main equipment is uA741 the most popular op-amp circuit, to used the photo transistor is a device for receiver a lighting to change is electricity very low. We [...]

Measure temperature safely and accurately with the Milwaukee 2277-21 12V Laser Temp-Gun Thermometer Kit with Humidity and Dew Point. Ideal for electricians, HVAC/R technicians, general contractors, construction workers, and plumbing professionals, this kit contains the easy-to-use 2277-20 thermometer, a Milwaukee Test & Measure tool that identifies hot spots, prevents damage to electrical equipment, and checks [...]

This beauty is one of the neatest thermometers we’ve ever seen! You can measure the temperature of anything merely by pointing a IR beam of light at it! That’s right, no contact, no sensors, no wires, glass, nothing but a beam of IR light! Is your motor running hot? Is your refrigerator cold enough? How [...]