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KY-039 Finger Detection Heartbeat Measuring Sensor ModuleFeatures-Use IR LED and an optical transistor to detect pulsation in fingersSmall and Compact moduleEasy to use...

Water Level Depth Detection Sensor for ArduinoFeatures-Operating voltage: DC3-5VOperating current: less than 20mASensor Type: AnalogDetection Area: 40mmx16mmOperating temperature: 10℃-30℃Humidity: 10% -90% non-condensing..

Flame Sensor ModuleFeatures-High Photo SensitivityFast Response TimeSensitivity adjustableDetects a flame or a light source of a wavelength in the range of 760nm-1100 nm.Detection range: up to 100 cm.Adjustable detection range.The detection angle about 60 degrees, it is sensitive to the flame spectr..

MQ-6 Liquefied Petroleum Isobutane Propane Gas Sensor moduleFeatures-Good sensitivity to Combustible gas in a wide rangeHigh sensitivity to Propane, Butane, and LPGLong life and low costSimple drive circuitAn indication of the signal output..

Analog Temperature Sensor ModuleFeatures-Operating Voltage: 5v.Temperature measurement range: -55°C to 125°C.Measurement Accuracy: ±0.5°C...

Sound Detection Module Sensor for Intelligent Vehicle Compatible With ArduinoFeatures-Uses LM393, Electret condenser microphoneSignal output IndicationSingle channel signal outputThe output effective signal is low level.Can detect the intensity of the sound environmentWith the retaining bolt hole, c..

MQ 135 Air Quality/Gas Detector Sensor Module For ArduinoFeatures-Sensitivity to Ammonia, Sulphide, and Benzene steamWith signal output instructionsThe TTL output signal is a low levelAnalog 0 ~ 5 v voltage output, the higher the concentration, the higher the voltageColor is showing pictures...

MQ-7 CO Carbon Monoxide Coal Gas Sensor ModuleFeatures-The analog output voltage, the higher the concentration the higher the voltage.The carbon monoxide detection with better sensitivity.There are four screw holes for easy positioning.With a long service life and reliable stability.Rapid response a..

MQ-9 Carbon Monoxide, Methane, and LPG Gas Sensor ModuleFeatures-Good sensitivity to CO/Combustible GasHigh sensitivity to Methane, Propane, and COLong life and low costSimple drive circuit..

Soil Moisture Meter, Soil Humidity Sensor, Water Sensor, Soil Hygrometer for ArdunioFeatures-Dual output mode, analog output more accurateA fixed bolt hole for easy installationWith power indicator (red) and digital switching output indicator (green)Having LM393 comparator chip, stable...