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Include: Volt meters :: Sound level meter :: Analog vu meter :: Soil moisture meter :: Digital meter circuit diagram :: Temperature measurements :: Electronic measurement tools :: Frequency meters :: Best battery tester :: Transistor tester project
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Sound level meter project LB1409
Posted inMeters & Detectors

Sound level meter circuit using LB1409

This project is a sound level meter circuit that easy and very cheap, can drive 9 LED display,The LB1409 is used as base of this circuit makes small size.
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Smoke detector circuitDigital temperature meter using LM335 or LM135
Posted inMeters & Detectors

Digital temperature meter using LM335 or LM135

This is digital temperature meter circuit that has High the accuracy temperature measurement. it use ICL7107 for LED 7 segment display and LM335 or LM135
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Digital capacitor meter projects easy to build
Posted inMeters & Detectors

Digital capacitor meter projects easy to build

I recommend the digital capacitor meter projects. It can measure capacitors ranging from 1pF to 2,000 uF. Which covers almost all of capacity. And cheaper [...]
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multi-function-frequency-meter-0-100mhz-by-ICM7226B
Posted inMeters & Detectors

Multi function digital frequency meter circuit 0-100MHz

The Multi function digital frequency meter circuit 0-100MHz, is an instrument that can measurement many things in a single display with LED 7 segment 8 digit. The controls measures sector…
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cheap alcohol tester circuit
Posted inMeters & Detectors

Cheap alcohol tester circuit

Party is a lot of fun. Alcohol makes us happy. And. we should make an alcohol tester. Why? We do not need sad about it, right? Imagine your friends who…
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