A current sensor is a device that detects electric current in a wire, and generates a signal proportional to that current. The generated signal could be analog voltage or current or even a digital output.
Modeling simple, elegant, LCD panels inline connections, moisture-resistant, strong anti-interference, applies to refrigerated cabinets, display counters and other needs of temperature measurement and display of various equipment.
A simple flex sensor, 2.2" in length. As the sensor is flexed, the resistance across the sensor increases. Patented technology by Spectra Symbol - they claim these sensors were used in the original Nintendo Power Glove.
MQ2 is a semiconductor sensor which can detect smoke and flammable gases at concentrations from 300 to 10,000 ppm. The sensitive material used for this sensor is SnO2, whose conductivity is lower in clean air.
MQ3 is a semiconductor sensor which can detect the presence of alcohol gases, Ethanol, and smoke at concentrations from 0.05 mg/L to 10 mg/L. The sensitive material used for this sensor is SnO2, whose conductivity is lower in clean air.
MQ4 is a semiconductor sensor which can detect the presence of methane, compressed natural gas(CNC) at concentrations from 200 to 10,000 ppm. The sensitive material used for this sensor is SnO2, whose conductivity is lower in clean air.
MQ5 is a semiconductor sensor which can detect the presence of LPG, Natural and Coal gases at concentrations from 200 to 10,000 ppm. The sensitive material used for this sensor is SnO2, whose conductivity is lower in clean air.
MQ6 is a semiconductor sensor which can detect LPG, LNG, iso-butane, propane gases at concentrations from 200 to 10,000ppm. The sensitive material used for this sensor is SnO2, whose conductivity is lower in clean air.
MQ7 is a semiconductor sensor which can detect the presence of carbon monoxide gas at concentrations from 20 to 2000 ppm. The sensitive material used for this sensor is SnO2, whose conductivity is lower in clean air.