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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..

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..

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)..

Vibration Switch ModuleFeatures-No direction, any angle can trigger the work.Sensitivity switches can be selected for the trigger sensitivity according to circuit requirements.This switch is suitable for the trigger of the small current circuit...

MQ-3 Alcohol Detector Gas Sensor ModuleFeatures-Signal output light indicator.Analog and level signal output.TTL output valid signal is low.  (When the output low signal light can be directly connected to microcontroller or relay module).The carbon monoxide detection with better sensitivity.It ..

Ai Thinker ESP-01F ESP8285 Serial WiFi ModuleFeatures-The smallest 802.11b/g/n Wi-Fi SOC module Low power 32-bit CPU, can also serve as the application processor Up to 160MHz clock speed Built-in 10 bit high precision ADC Supports UART/GPIO/IIC/PWM/ADC SMD-18 package for eas..

S18-L262B-2 Digital SMD Passive Infrared PIR SensorFeatures:Custom design is available.Higher in cost-performanceLong-rangeWide-angle..

Ai Thinker ESP-07 ESP8266 Serial WiFi ModuleFeatures-The smallest 802.11b/g/n Wi-Fi SOC moduleLow power 32-bit CPU, can also serve as the application processorUp to 160MHz clock speedBuilt-in 10 bit high precision ADCSupports UART/GPIO/IIC/PWM/ADC..

BM612 Digital PIR sensorDigital signal processing（DSP）Power adjustable, save more energyTwo-way differential high impedance sensor inputBuilt-in filter, screen the interference by other frequencyExcellent power supply rejection, Insensitive to RF interferenceSchmidt REL outputLow voltage, low power ..