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The probe has been calibrated at the factory, which can quickly and accurately m..."},{"title":"Gravity: Non-contact Arduino Water / Liquid Level Sensor","handle":"gravity-non-contact-arduino-water-liquid-level-sensor","url":"/products/gravity-non-contact-arduino-water-liquid-level-sensor","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":20.85,"price_range":20.85,"variant_count":1,"sku":"DF-SEN0204","local_stock":2,"supplier_stock":1375,"description":"A non-contact liquid level sensor that detects the presence of liquid through a container wall — no direct contact with the liquid required. Using advanced signal processing via the XKC-Y25-T12V ch..."},{"title":"Gravity: Non-contact IR Temeperature Sensor For Arduino","handle":"gravity-non-contact-ir-temeperature-sensor-for-arduino","url":"/products/gravity-non-contact-ir-temeperature-sensor-for-arduino","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":32.25,"compare_at_price":0.0,"price_range":32.25,"variant_count":1,"sku":"DF-SEN0206","local_stock":0,"supplier_stock":270,"description":"\n               INTRODUCTION               We can divide temperature measurement in to two types: contact and non-contact. Contact measurement can only accurately measure temperature when the testi..."},{"title":"Gravity: O2 Sensor (Calibrated) - I2C & UART","handle":"gravity-o2-sensor-calibrated-i2c-amp-uart","url":"/products/gravity-o2-sensor-calibrated-i2c-amp-uart","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":158.0,"price_range":158.0,"variant_count":1,"sku":"DF-SEN0465","local_stock":0,"supplier_stock":173,"description":"This is a sensor that detects oxygen concentration and supports three output modes: analog, I2C, and UART. The probe has been calibrated at the factory, which can quickly and accurately measure the..."},{"title":"Gravity: O3 Sensor (Calibrated) - I2C & UART","handle":"gravity-o3-sensor-calibrated-i2c-amp-uart","url":"/products/gravity-o3-sensor-calibrated-i2c-amp-uart","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":283.6,"price_range":283.6,"variant_count":1,"sku":"DF-SEN0472","local_stock":0,"supplier_stock":62,"description":"This is a sensor that detects ozone concentration and supports three output modes: analog, I2C, and UART. The probe has been calibrated at the factory, which can quickly and accurately measure the ..."},{"title":"Gravity: Offline Language Learning Voice Recognition Sensor for Arduino / Raspberry Pi / Python / ESP32 - I2C & UART","handle":"gravity-offline-language-learning-voice-recognition-sensor-for-arduino-raspberry-pi-python-esp32-i2c-amp-uart","url":"/products/gravity-offline-language-learning-voice-recognition-sensor-for-arduino-raspberry-pi-python-esp32-i2c-amp-uart","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":29.5,"compare_at_price":0.0,"price_range":29.5,"variant_count":1,"sku":"DF-SEN0539-EN","local_stock":0,"supplier_stock":1093,"description":"\n  What is voice recognition? \nVoice recognition is a computer technology that recognizes and converts speech signals into editable text or operational commands through analysis. It allows peo..."},{"title":"Gravity: PAJ7620U2 Gesture Sensor","handle":"gravity-paj7620u2-gesture-sensor","url":"/products/gravity-paj7620u2-gesture-sensor","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":15.55,"compare_at_price":0.0,"price_range":15.55,"variant_count":1,"sku":"DF-SEN0315","local_stock":0,"supplier_stock":215,"description":"Build an awesome interactive project with this PAJ7620U2 Gesture Sensor! It is an interactive sensor with 3D gesture recognition that can recognize 13 gestures at most within 20cm. The sensor offer..."},{"title":"Gravity PH2.0 to Female DuPont Tagged Cable 30cm - 5 Pack","handle":"gravity-ph2-0-female-dupont-line-with-tag-30cm-5-pack","url":"/products/gravity-ph2-0-female-dupont-line-with-tag-30cm-5-pack","vendor":"DFRobot","product_type":"Jumper Cable","in_stock":true,"price":16.0,"price_range":16.0,"variant_count":1,"sku":"DF-FIT0916-F","local_stock":0,"supplier_stock":153,"description":"These labelled jumper cables are designed to make Gravity project wiring easier to follow, especially when a build has several similar connections. Each cable carries I2C/UART pin labels so you can..."},{"title":"Gravity: PH3 Sensor (Calibrated) - I2C & UART","handle":"gravity-ph3-sensor-calibrated-i2c-amp-uart","url":"/products/gravity-ph3-sensor-calibrated-i2c-amp-uart","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":477.0,"price_range":477.0,"variant_count":1,"sku":"DF-SEN0476","local_stock":0,"supplier_stock":12,"description":"This is a sensor that detects phosphine concentration and supports three output modes: analog, I2C, and UART. The probe has been calibrated at the factory, which can quickly and accurately measure ..."},{"title":"Gravity: Photoelectric Arduino Water Liquid Level Sensor","handle":"gravity-photoelectric-arduino-water-liquid-level-sensor","url":"/products/gravity-photoelectric-arduino-water-liquid-level-sensor","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":12.55,"price_range":12.55,"variant_count":1,"sku":"DF-SEN0205","local_stock":0,"supplier_stock":148,"description":"A photoelectric liquid level sensor that uses optical principles to detect the presence or absence of liquid. With no moving parts, it requires minimal calibration and offers high sensitivity and l..."},{"title":"Gravity: PM2.5 Air Quality Sensor","handle":"gravity-pm2-5-air-quality-sensor","url":"/products/gravity-pm2-5-air-quality-sensor","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":69.75,"price_range":69.75,"variant_count":1,"sku":"DF-SEN0460","local_stock":0,"supplier_stock":328,"description":"The Gravity PM2.5 Air Quality Sensor uses laser scattering to measure suspended particulate matter in three size ranges — PM1.0, PM2.5, and PM10 — and outputs concentration data via I2C. With a min..."},{"title":"Gravity: Ring 2D QR Code Scanner","handle":"gravity-ring-2d-qr-code-scanner","url":"/products/gravity-ring-2d-qr-code-scanner","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":69.6,"price_range":69.6,"variant_count":1,"sku":"DF-SEN0486","local_stock":0,"supplier_stock":16,"description":"This highly integrated QR code scanner with excellent performance can recognize common 1D codes and 2D codes. With a small size, it employs easy-to-connect Gravity Interface and is equipped with a ..."},{"title":"Gravity: RS485 IO ExpansionShield for Arduino","handle":"gravity-rs485-io-expansionshield-for-arduino","url":"/products/gravity-rs485-io-expansionshield-for-arduino","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":15.5,"price_range":15.5,"variant_count":1,"sku":"DF-DFR0219","local_stock":1,"supplier_stock":105,"description":"      Our IO expansion board is evolving, the RS485 IO Expansion Shield is now supporting Xbee and has colour coded pin header. It combines our popular Xbee shield with IO expansion shield.   It ev..."},{"title":"Gravity: SCI DAQ Module with Screen (I2C)","handle":"gravity-sci-daq-module-with-screen-i2c","url":"/products/gravity-sci-daq-module-with-screen-i2c","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":75.1,"price_range":75.1,"variant_count":1,"sku":"DF-DFR0999","local_stock":0,"supplier_stock":379,"description":"The Gravity SCI DAQ Module is a multi-functional data acquisition module with a built-in 1.3-inch OLED screen for real-time sensor readings. It supports over 20 common sensor types including temper..."},{"title":"Gravity: Science Data Acquisition Module Kit for Experiments Education","handle":"gravity-science-data-acquisition-module-kit-for-experiments-education","url":"/products/gravity-science-data-acquisition-module-kit-for-experiments-education","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":147.55,"price_range":147.55,"variant_count":1,"sku":"DF-EDU0170","local_stock":1,"supplier_stock":22,"description":"The Gravity Science Data Acquisition Module Kit is a comprehensive toolkit for conducting digital scientific experiments without programming or electronics knowledge. Built around the DFRobot SCI D..."},{"title":"Gravity Sensor Cable For LattePanda (10 Pack)","handle":"gravity-sensor-cable-for-lattepanda-10-pack","url":"/products/gravity-sensor-cable-for-lattepanda-10-pack","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":10.5,"price_range":10.5,"variant_count":1,"sku":"DF-FIT0514","local_stock":0,"supplier_stock":2,"description":"   These wire offers you the best way to connect sensors and actuators to your LattePanda! They are specially designed for LattePanda and DFRobot Gravity Sensors. It compatible with a wide range of..."},{"title":"Gravity: Serial Data Logger for Arduino","handle":"gravity-serial-data-logger-for-arduino","url":"/products/gravity-serial-data-logger-for-arduino","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":17.3,"price_range":17.3,"variant_count":1,"sku":"DF-TEL0147","local_stock":0,"supplier_stock":247,"description":"Compared to the old MicroSD Card Module, this Gravity: Serial Data Logger can store data more conveniently, and supports direct data printing through serial port without additional codes.The Serial..."},{"title":"Gravity: SGP40 Air Quality Sensor","handle":"gravity-sgp40-air-quality-sensor","url":"/products/gravity-sgp40-air-quality-sensor","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":24.25,"price_range":24.25,"variant_count":1,"sku":"DF-SEN0394","local_stock":0,"supplier_stock":111,"description":"The Gravity SGP40 Air Quality Sensor uses Sensirion's SGP40 digital VOC sensor chip with built-in temperature and humidity compensation. It outputs a VOC index (0–500) that can be used directly to ..."},{"title":"Gravity: SHT31-F Digital Temperature and Humidity Sensor","handle":"gravity-sht31-f-digital-temperature-and-humidity-sensor","url":"/products/gravity-sht31-f-digital-temperature-and-humidity-sensor","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":17.25,"price_range":17.25,"variant_count":1,"sku":"DF-SEN0334","local_stock":0,"supplier_stock":200,"description":"Gravity: SHT31-F digital temperature and humidity sensor is based upon the Sensirion SHT31-F sensor IC. Thanks to Sensirion’s CMOSens® technology, highly integrated capacitive humidity sensing comp..."},{"title":"Gravity: SO2 Sensor (Calibrated) - I2C & UART","handle":"gravity-so2-sensor-calibrated-i2c-amp-uart","url":"/products/gravity-so2-sensor-calibrated-i2c-amp-uart","vendor":"DFRobot","product_type":"physical","in_stock":true,"price":283.6,"price_range":283.6,"variant_count":1,"sku":"DF-SEN0470","local_stock":0,"supplier_stock":50,"description":"A factory-calibrated electrochemical sulfur dioxide (SO2) sensor with I2C, UART, and analogue output modes. Part of the DFRobot Gravity gas sensor series, this module quickly and accurately measure..."}]