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Gravity - temperature sensors

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DFRobot Gravity: Non-contact Liquid Level Sensor

The sensor determines the liquid level without dipping into the liquid. Due to the lack of contact with the liquid, the module is suitable for level measurement of hazardous...
Index: DFR-06931
Index: DFR-06931
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Regular price PLN36.18 Price PLN36.18

Gravity: Analog High Temperature Sensor

Analog sensor of the high temperature, operating in the range from 30 °C to 350 °C. It is powered with a voltage of 3.3 V to 5.5 V. The kit has a PT100 probe.
Index: DFR-06613
Index: DFR-06613
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Regular price PLN52.76 Price PLN52.76

DFRobot Gravity - analog soil humidity sensor

The device is used to measure the soil moisture by measuring the resistance, compatible with Arduino and Raspberry Pi. The supply voltage is from 3.3 V to 5 V. The sensor is...
Index: DFR-11259
Index: DFR-11259
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Regular price PLN10.16 Price PLN10.16

DFRobot Gravity - pH analog sensor/meter

Analog pH meter with analog output. It allows you to measure water quality. It has an accuracy of +/- 0.1 pH, which is sufficient in most cases. Equipped with LED, BNC...
Index: DFR-05874
Index: DFR-05874
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Regular price PLN103.66 Price PLN103.66

DFRobot Gravity - analog soil moisture sensor - corrosion resistant - SEN0193

The device is used to measure soil moisture by the capacitive detection. It has a built-in voltage regulator which provides an operating voltage range from 3.3 V to 5 V. It is...
Index: DFR-10305
Index: DFR-10305
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Regular price PLN21.54 Price PLN21.54

DFRobot Gravity - digital barometer, pressure and altitude sensor 1250hPa I2C/SPI 3,3-5,5V

Module with digital barometer from Bosch BMP388. The measurement range is from 300 hPa to 1250 hPa relative accuracy of 8 Pa on approx. 0.5 m of altitude. The system is...
Index: DFR-13156
Index: DFR-13156
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Regular price PLN25.93 Price PLN25.93

Gravity - 9DOF sensor BMX160 + temperature and pressure sensor BMP388 - I2C- DFRobot SEN0252

The module is equipped with two BMX160 and BMP388 sensors. BMX160 is a 9-axis sensor which allows to measure the acceleration in the ranges ± 2 g / ± 4 g / ± 8 g / ± 16 g...
Index: DFR-15712
Index: DFR-15712
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Regular price PLN73.13 Price PLN73.13

DFRobot Gravity - BME280 humidity, temperature and pressure sensor 110kPa I2C / SPI 3-5V

The DFRobot module is equipped with a sensor of humidity, temperature and pressure, powered with the voltage from 3.3 V to 5 V with the I2C and SPI interface. Measuring range:...
Index: DFR-09384
Index: DFR-09384
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Regular price PLN64.96 Price PLN64.96

DFRobot Gravity - water vapor sensor

The vapor sensor is compatible with Arduino. When the humidity increases, output voltage increases. It can be used in projects such as a rain detector or touch sensor based on...
Index: DFR-11285
Index: DFR-11285
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Regular price PLN5.12 Price PLN5.12

Gravity - BME680 I2C environmental sensor - DFRobot SEN0248

A 4-in-1 MEMS environmental sensor equipped with Gravity connector, manufactured by DFRobot. It features an embedded Bosch BME680 chip. The multifunctional module is a...
Index: DFR-19200
Index: DFR-19200
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Regular price PLN73.09 Price PLN73.09

Gravity - ozone sensor I2C - electrochemical - DFRobot SEN0321

Electrochemical ozone sensor for accurate O3 concentration measurement in the environment. Its measuring range is from 0 ppm to 10 ppm. It communicates via the I2C...
Index: DFR-16575
Index: DFR-16575
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Regular price PLN178.05 Price PLN178.05

DFRobot Gravity - analog temperature sensor LM35

Analog LM35 sensor working with Arduino and Raspberry Pi. It is powered with the voltage from 3.3 V to 5 V. it can measure temperature in the range from 0 ℃ to 100 ℃. The...
Index: DFR-10842
Index: DFR-10842
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Regular price PLN12.93 Price PLN12.93

Gravity - Thermocouple MAX31855K - I2C temperature sensor

Module MAX 31855K together with thermocouple allows to measure high temperatures with high accuracy. It o perates in the range from 0 °C to 800 °C with a supply voltage from...
Index: DFR-12473
Index: DFR-12473
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Regular price PLN91.46 Price PLN91.46

DFRobot Gravity - Non-contact IR Thermometer Sensor MLX90614

Non-contact temperature sensor. It is used for measurement of IR radiation and does not require the direct touch. It communicates through an I2C interface.
Index: DFR-06933
Index: DFR-06933
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Regular price PLN69.02 Price PLN69.02

Gravity - DHT22 digital temperature and humidity sensor - DFRobot SEN0137

DFrobot's DHT22 digital humidity and temperature sensor module provides precise measurements and has a short response time combined with high reliability and resistance to...
Index: DFR-15760
Index: DFR-15760
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Regular price PLN21.87 Price PLN21.87

DFRobot Gravity - analog sensor of TDS, purity of water for Arduino

Analog TDS sensor compatible with Arduino, it is used for measuring the hardness and the purity of water. It can be used to test the quality of water in households, hydroponic...
Index: DFR-10830
Index: DFR-10830
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Regular price PLN46.26 Price PLN46.26

DFRobot Gravity - DS18B20 temperature sensor

Digital temperature sensor DS18B20 with the Gravity interface compatible with Arduino. It works in the range from -55 °C to 125 °C. It is powered with the voltage from 3.3 V...
Index: DFR-11281
Index: DFR-11281
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Regular price PLN12.93 Price PLN12.93

Gravity - Air Quality Sensor - SGP40 - DFRobot SEN0394

Air quality sensor manufactured by DFRobot. It has a built-in SGP40 chip (introduced by the well-known Sensirion company), which measures the VOC air quality in the range...
Index: DFR-19375
Index: DFR-19375
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Regular price PLN51.14 Price PLN51.14

Gravity - Analog temperature and humidity sensor - SHT30 - DFRobot DFR0588

Analog temperature and humidity sensor produced by DFRobot. The module is equipped with a high quality new generation SHT30 chip from Sensirion. It uses CMOSens...
Index: DFR-19383
Index: DFR-19383
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Regular price PLN25.20 Price PLN25.20

DFRobot Gravity - analogue turbidity sensor

Sensor to investigate the quality of water by measuring its turbidity. It works with 5 V, at a temperature from -30 °C to 80 °C.
Index: DFR-05318
Index: DFR-05318
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Regular price PLN36.59 Price PLN36.59

DFRobot Gravity - MLX90614-DCI IR thermometer

Non-contact temperature IR sensor  MLX90614-DCI. It is used for measurement of IR radiation and does not require direct touch. It communicates through an I2C interface.
Index: DFR-12351
Index: DFR-12351
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Waiting time: approx. 10-30 days
Regular price PLN251.22 Price PLN251.22

Gravity - pH analog sensor/meter V2 - DFRobot SEN0161-V2

pH sensor / meter with analogue output. Allows to test the level of acidity and alkalinity of aqueous solutions . It has an accuracy of +/- 0.1 pH, which is sufficient for...
Index: DFR-15094
Index: DFR-15094
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Waiting time about 10-30 days
Regular price PLN153.66 Price PLN153.66

Gravity - Analog Electrical Conductivity Sensor - DFRobot DFR0300-H

The device allows to measure the salinity of waters and soils by examining the inverse of the resistance, which is conductivity. The conductivity of water can reflect the level...
Index: DFR-15096
Index: DFR-15096
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Waiting time about 10-30 days
Regular price PLN291.87 Price PLN291.87

Gravity - Analog Waterproof Capacitive Soil Moisture Sensor - DFRobot SEN0308

The device is designed to measure soil moisture by means of capacitive detection. DFRobot product has increased water resistance . It can be placed in the soil for a long...
Index: DFR-17377
Index: DFR-17377
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Waiting time about 10-30 days
Regular price PLN51.95 Price PLN51.95

Atmospheric sensors from the DFRobot Gravity series

The Gravity series of modules includes a large group of sensors measuring basic physical quantities used to determine environmental parameters - temperature, relative humidity and atmospheric pressure. Apart from simple analog sensors (LM35) and digital sensors (the immortal DS18B20), the offer of the well-known manufacturer includes even non-contact sensors (in this role the popular MLX90614 integrated pyrometer). Interestingly, Gravity series of modules includes also special circuits dedicated for temperature monitoring using thermocouples (for this purpose there is integrated converter MAX31855K) and thermoresistors PT100. Particularly interesting are multifunctional sensors, such as BME280 - providing the ability to conduct accurate measurements of temperature, pressure and relative humidity and communicating with an external processor via I2C bus. In the construction of flying machines (e.g. drones) a miniature board with a barometer and a 9-axis MEMS inertial sensor will be a perfect solution - the I2C - DFRobot SEN0252 module also uses the I2C interface for communication, and only 4 wires are needed to connect the board (it has a 4-pin Gravity connector and an appropriate cable is included). The electrochemical ozone sensor SEN0321 is also worth mentioning.

Sensors for monitoring of soil and water conditions

Measurements of physical and chemical quantities carried out directly in the soil, allow for precise monitoring of the conditions of plant development - this is important especially in the case of varieties with high sensitivity to too low or too high humidity of the substrate and its incorrect reaction. The series of DFRobot Gravity modules includes two analogue modules for measurement of soil moisture, working on the basis of its electrical conductivity (Moisture Sensor v2) or capacity (corrosion resistant SEN0193 module, in which the measuring paths are completely soldermasked). The best capabilities in the target applications are provided by a high-end sensor SEN0308 with a hermetic connector and printed millimeter scale, allowing easy verification whether the sensor is located at the appropriate depth in the monitored substrate. For particularly demanding applications, the DFR0300-H analogue water and soil salinity sensor will come in handy - the kit includes a robust, waterproof measuring probe, a converter module, a connection cable and four jars of 12.88 mS/cm buffer solution, as well as a set of necessary mounting hardware.

Gravity system in practice

DFRobot Gravity modules are available with 3- and 4-pin system connectors, compatible with all Gravity ecosystem boards. The 3-pin sensors offer digital (binary, i.e. 0/1) and analog (voltage) outputs, while the 4-pin sensors are most often equipped with an I2C interface, compatible with almost all base boards from the well-known manufacturer. The use of keyed connectors ensures error-free connection of the cable to the sensor PCB, which is important to avoid damage by accidental reversal of power supply polarity. Gravity series contains also numerous executive modules - including motor drivers, modules with relays or even... small DC motors.