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WiFi Temperature Humidity Sensor with App Alerts, LCD Display | Remote Monitoring, Custom Alerts, Calibration & Data Logging for Home, Greenhouse, Reptile and Wine Cellar

$36^.99

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Temperature Acquisition Module 4-way PT100 RTD Ethernet RS485 with OLED Display Screen ME31-XDXX0400 Support Modbus

$118^.99

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IR Infrared Transmitter Receiver Module - 5V Remote Control Decoder Encoder Board, 38KHz, Digital Interface for MCU Development

$11^.66

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AJMRTC MPR121 Capacitive Touch Sensor Keypad Module, 12 Channel Touch Buttons I2C Interface Digital Touch Controller for Arduino Raspberry Pi DIY Electronic Projects

$10^.54

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AJMRTC HLK-LD2413 24GHz FMCW Millimeter Wave Radar Module, Non-Contact Water Liquid Level Detection Sensor, 0.15m10m Measuring Range, ±3mm High Precision, UART Output, Liquid Level Induction Switch

$187^.95

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AJMRTC 12V Photoresistor Sensor Relay Module, Light Sensitive Automatic Control Switch, Brightness Detection Relay Board for Auto Car Light Control, 2Pcs Pack

$49^.24

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AJMRTC HLK-LD102 10GHz Hand Wave Radar Sensor, Near Field Hand Sweep Trigger Module, UART Serial & 3.3V IO Output, Microwave Doppler Motion Sensor for Smart Home Switch DIY, Module Without Pin

$13^.15

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AJM-SEN-TDS-01 TDS Sensor Module Analog Total Dissolved Solids Water Quality Detection Module Liquid Solubility Tester Analog Voltage Output For 51/STM32 MCU Water Monitoring DIY Testing

$13^.89

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WiFi Thermometer Hygrometer: Indoor Temperature & Humidity Monitor with App | App Alerts, 3" Backlit LCD, Remote Monitoring, History & CSV Export, Smart Home Automation, USB Powered, Alexa Compatible

$43^.99

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AJMRTC R60ABD1 60G Millimeter Wave Radar Sensor Module, Biosensing Detector for Respiratory & Heartbeat Monitoring, Sleep Quality Tracking, UART Serial Output, Non-Contact Human Vital Signs Detection

$21^.90

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AJMRTC SingleChip Ultrasonic Rangefinder Electronic Kit, DIY Ultrasonic Radar Assembly Kit, Distance Measuring Soldering Practice Kit for Electronic Reverse Training & DIY Experiment Project

$17^.91

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30pcs 35mm Copper Plate Piezoelectric Buzzer Disc for Audio Sensor, Microphone Pickup, Low Power

$16^.79

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Volume Discounts:$15.49 - $16.79

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DCDC Boost Converter Module, 1032 V Input to 3560 V Output, 5 A CC CV Adjustable, 120 W Max

$22^.10

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Volume Discounts:$20.80 - $22.10

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BME688 Environmental Sensor Module, Temperature Humidity Barometric Pressure Gas Sensor, I2C/SPI, AI Function, for Raspberry Pi, Arduino, ESP32, Pico, 3.3V/5V Compatible

$64^.18

More options from $58.99 - $64.18

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30pcs 15mm Copper Plate with Aluminum Casing Wired Piezo Buzzer Element for Drum Triggers Acoustic Sensor CBG Guitar

$16^.79

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Volume Discounts:$15.49 - $16.79

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30pcs 41mm Copper Plate Piezoelectric Ceramic Disc for DIY Audio Systems Acoustic Sensor Microphone Pickup

$16^.79

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Volume Discounts:$15.49 - $16.79

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3pcs Wio-E5 STM32WLE5JC LoRa Module with Embedded SX126X and MCU for LoRaWAN Wireless Sensor Network and IoT Devices, EU868 & US915

$78^.28

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Smart Temperature Humidity Monitor: WiFi Thermometer Hygrometer, App Alerts | Works with Smart Life/Tuya App, Remote Monitoring, History & Data Export, Alexa Compatible, for Greenhouse, Wine Cellar

$38^.99

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WiFi Thermometer Hygrometer with 2 IP65 Remote Sensors, 328Ft Range | Indoor Outdoor Temperature Humidity Monitor with App Alerts, Large LCD Display, Data Export, for Home Greenhouse Basement

$76^.99

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(01080M Pro Accuracy Temperature and Humidity Gauge, Black | Stay comfy with this hygrometer/thermometer combo, complete with comfort meter, highs and lows, trends, and humidity alarm.

$44^.99

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Volume Discounts:$41.99 - $44.99

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USR-TCP232-302 Tiny Size RS232 to TCP IP Converter Serial RS232 to Ethernet Server Module Ethernet Converter Support DHCP/DNS (1)

$55^.07

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Volume Discounts:$53.47 - $55.07

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USR-TCP232-302 Tiny Size RS232 to TCP IP Converter Serial RS232 to Ethernet Server Module Ethernet Converter Support DHCP/DNS (10)

$433^.46

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Volume Discounts:$431.86 - $433.46

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USR-TCP232-302 Tiny Size RS232 to TCP IP Converter Serial RS232 to Ethernet Server Module Ethernet Converter Support DHCP/DNS (5)

$223^.67

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Volume Discounts:$222.07 - $223.67

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USR-TCP232-302 Tiny Size RS232 to TCP IP Converter Serial RS232 to Ethernet Server Module Ethernet Converter Support DHCP/DNS (2)

$93^.07

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Volume Discounts:$91.47 - $93.07

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RP2350-ETH Dual-Core Ethernet Module Development Board with USB-C Port Compatible with Raspberry Pi Microcontroller

$36^.56

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Volume Discounts:$34.96 - $36.56

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SGP40 Digital VOC Gas Sensor Module I2C Air Quality Sensor MEMS Volatile Organic Compound Detector with Real-Time VOC Index Output For Raspberry Pi and Other I2C Microcontrollers

$35^.89

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AJMRTC 5Pcs RCWL-0515 Microwave Radar Sensor Module, 2.7G Doppler Motion Detector, 12-15M Long Distance Human Body Induction Board for Garage Light, UV Lamp, Smart Home Lighting Control

$11^.21

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AJMRTC HLK-LD2452 24GHz FMCW Millimeter Wave Radar Module, Multi-Target Human Positioning Tracking Sensor, 6m Detection Range, Distance Angle Speed Output, Max 0.25G Sweep Bandwidth, TTL UART Serial,

$33^.58

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AJMRTC HLK-LD2453 24GHz FMCW Millimeter Wave Multi-Target Human Motion Tracking Radar Module, 1T2R Single Transmitter Dual Receiver, 6m Detection, Distance Angle Speed TTL Serial Ranging Sensor, Bare

$45^.45

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30pcs 18mm Piezo Buzzer Element Ceramic Disc with Copper Plate for Sound Module

$16^.79

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Volume Discounts:$15.49 - $16.79

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WiFi Thermometer Hygrometer: Indoor Temperature & Humidity Monitor with App | App Alerts, 3" Backlit LCD, Remote Monitoring, History & CSV Export, Smart Home Automation, USB Powered, Alexa Compatible

$43^.99

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