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GPIO Extension Board Module for Raspberry Pi, Robot Car DIY Expansion Test Board Compatible with Raspberry Pi 4 Model B 3B+ 3B
Limited time offer, ends 10/09
$14.80
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Gravity: Analog Dissolved Oxygen Sensor Kit | Galvanic Probe, No Polarization | DO Meter (0-20mg/L) | 3.3V-5V for Arduino, ESP32 & Raspberry Pi | Water Quality Monitor for Aquaculture & IoT
Limited time offer, ends 09/30
$421.50
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Gravity: MiCS-4514 Multi-Gas Sensor Module for Arduino / ESP32 / Raspberry Pi | I2C MEMS Air Quality Sensor Detects CO NO2 NH3 Alcohol H2 CH4 | Built-in Algorithm ppm Output for DIY IoT Projects
Limited time offer, ends 09/30
$106.25
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Gravity: Factory Calibrated O2 Sensor Module | 0-25% Vol Electrochemical Oxygen Gas Detector | I2C UART Analog Output | Built-in Temp Compensation | for Arduino, ESP32, Raspberry Pi
Limited time offer, ends 09/30
$211.25
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