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HR 202 Humidity Detection Sensor ModuleFeatures-Adjustable Sensitivity, External GND.Detect Ambient Humidity.Provided with Fixed Bolt Hole, Convenient to Install.Power Indicator Light & Digital Output Indication Lamp.Using LM393 Chip for Stable Work.DO Small Digital Outputs Interface (0 & 1)..

DHT-11 Digital Temperature And Humidity SensorFeatures-Low power consumption.Relative humidity and temperature measurementAll calibration, digital outputExcellent long-term stabilityNo additional componentsLong distance signal transmissionUltra-low power4-pin packageCompletely interchangeable..

SN04-N NPN NO 5mm Distance Detector Proximity Sensor Switch ModuleFeatures-Red LED checks the state of the proximity sensorHigh repeated positioning accuracyHigh switching frequencyWide voltage rangeAntivibration, dust, water, and oil preventionReverse power protection, short circuit protection, dir..

DHT11 Temperature And Humidity Sensor Module with LEDFeatures-DHT11 sensor with PCB and LED indicator along with cable; 3 to 5V power and I/O, 4 pins with 0.1″ spacingThe board has a pre-built 4.7K or 10K resistor, which you will need to use as a pull-up from the data pin to VCC.2.5mA max current us..

XH-W1219 12V Digital Red+Green Display Temperature Controller Module W/ NTC Waterproof Temperature SensorFeatures-    This is XH-W1219 12V Digital Red+Green Display Temperature Controller Module W/ NTC Waterproof Temperature Sensor. The XH-W1219 thermostat module with its µC and ..