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Oliair Portable Air Quality Detector for Home, Office & Car | CO₂, HCHO, TVOC, Temperature & Humidity Meter | Rechargeable Indoor Air Pollution Monitor with Digital Display

Air Quality Monitor Indoor, 10 in 1 Portable Smartair Quality Tester for CO2 | CO | TVOC | HCHO | Temp | AQI | PM0.3-1 Detection Hum for Home Cars Plants, Pets, Car, Hotel

Robustt Earmuffs - Pack of 1 | Adjustable Earmuffs | Comfortable Fit | Heavy Duty Ear Muffs for Hearing Protection and Noise Reduction

amiciSmart 4 Channel 5V Relay Module Shield with Optocoupler, High and Low Level Trigger Relay Board for Arduino, and Microcontrollers - Perfect for DIY Smart Home Automation

Smilora Portable Air Quality Pollution Monitor Meter| Accurate 11 in 1 TVOC, HCHO, CO₂, Temp., Humidity| 2000mAh Fast Chargeable All Day Battery| Use Indoor Outdoor Home Office Anywhere|1Year Warranty

ROBOMALLS™ ESP-32 ESP32S Expansion Board 30 Pin | Ideal for IoT and Embedded System Projects | (Pack of One)

Air Quality Monitor Indoor, 5 in 1 Portable Real-Time Smart Air Quality Tester with CO2 Monitor, HCHO, TVOC, Temperature, Humidity Detector for Home, Office, Car, Hotel (White)

Temtop Air Quality Monitor Indoor Thermo-Hygrometer - PM2.5, AQI, Temperature, and Humidity Meter for Home, Office, or School, Air Quality Measurement, 60-Day Battery Life

FlyRobo Automatic Plant Watering System Using ESP32 Board and Soil Moisture Sensor |DIY kit |Iot Project Kit

INKBIRDPLUS Advanced Air Quality Monitor Indoor CO2 Meter Accurate Tester with Formaldehyde (HCHO), TVOC, Temperature & Humidity Sensor Real-Time Gas Detector Smart Alarm Rechargeable Battery

Robocraze ESP32-CAM ESP32 Camera Development Board | OV2640 2MP Sensor with WiFi & Bluetooth, 4MB Flash & PSRAM for IoT Vision Applications | Smart Surveillance Module, Compact Design (Pack of 5)

Smart Air Quality Monitor 18 in 1 - WiFi Indoor Air Quality Detector with Dual Chip, Real Time for AQI, CO2, PM2.5, PM1.0, PM10, TVOC, HCHO, Time Display

OceanLabz ESP32 WROOM-32 Development Board | CP2102 USB Micro Interface | with 30-Pin ESP32S Expansion Board | Preloaded Code | Compatible with IoT & Embedded Projects

OLED Display Module 0.96 inch 4 pin (128x64), IIC Interface, Blue/White Screen 0x3C

Lutron PDO-519 Dissolved Oxygen Meter Model

REES52® ESP8266 5V WIFI Relay Module TOI APP Control For Smart Home Automation System

Robocraze 37 in 1 Ultimate Sensor Modules Kit for Arduino NodeMCU Raspberry Pi with IR Sound Flame Relay Joystick RFID Sensors for Robotics IoT STEM DIY Electronics Projects

Easy Electronics ESP32 Based 8-Channel Relay Board Micro Controller Board Electronic (WiFi Bluetooth)

ESPHome IoT Smart Home Kit with ESP32 | Includes OLED Display, PIR Sensor, Water Level Sensors, Float Sensors, DHT11, and More for Home Automation & DIY IoT Projects

ESP32 C3 Mini Development Board - WiFi & Bluetooth 5.0, 160MHz RISC-V Processor, Ideal for IoT Projects and Arduino Compatibility

Temtop M10+ Indoor Air Quality Monitor, 6-in-1 CO2, PM2.5, VOC Detection, Smart Temperature & Humidity Sensor, with App Connectivity for Home Air Quality Testing & Analysis

Robocraze 0.96 Inch OLED Display Module 128x64 Blue | SPI/I2C 4-Pin OLED Screen | Compatible with Arduino, ESP8266, Raspberry Pi, STM32 & DIY Electronics Projects (Pack of 1)

5-28V ESP32 WiFi 4 Channel 5V 10A Relay Module With Optocoupler Isolation - Industrial Grade

Robocraze ESP32 Development Board 38 Pin with Dual-Core Performance, WiFi, Bluetooth, CP2102 Chip & Micro USB Support | ESP32S Arduino Compatible IoT Module Board for DIY Electronics Projects