DFRobot Gravity I2C Oxygen Sensor

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SKU: rz24321792 Category: Gas and Dust Sensor

Description

The Gravity: I2C Oxygen Sensor is based on electrochemical principles and it can measure the ambient O2 concentration accurately and conveniently. With high anti-interference ability, high stability, and high sensitivity, this Arduino-compatible oxygen sensor can be widely applied to fields like portable devices, air quality monitoring devices, and industries, mines, warehouses, and other spaces where the air is not easy to circulate.

This compact dfrobot oxygen sensor supports I2C output, it can be calibrated in the air, can accurately measure the oxygen concentration in the environment. It is compatible with many mainboards like Arduino Uno, esp32, Raspberry Pi, and so on. Its effective range is 0~25%Vol, and resolution can reach to 0.15%Vol. It supports a wide range of input voltage: 3.3V to 5.5V. Moreover, the lifetime is as long as 2 years. With a simple Gravity interface and practical sample code, you can build your own oxygen concentration monitor easily and conveniently.

Features:

High sensitivity
I2C Interface
Compatible with both 3.3V and 5V micro-controllers
Polarity protection

Useful Links:

Package Includes:

1 x Oxygen Sensor module

1 x Gravity-4pin I2C Cable

4 x M3*10 Nylon post

8 x M3*5 Screws

Additional information

Operating Voltage(V)	3.3 to 5.5
Detecting Range	0~30%Vol
Sensitivity	(0.10±0.05)
Working Humidity Range	0-100%RH
Response Time	≤15 seconds
Length (mm)	37
Width (mm)	27
Height (mm)	24.5
Weight (gm)	37

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Shipping & Delivery

Shipping and Delivery Policy

1. Shipping Process:

Orders are processed within 1-2 business days after payment confirmation.
Delivery time varies based on location and selected shipping method, typically ranging between 3-7 business days.
We partner with trusted courier services to ensure timely and safe delivery.

2. Shipping Charges:

Shipping charges are calculated at checkout based on the delivery location and package weight.
Free shipping may be available for orders above a specified amount, as mentioned on our website.

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We are not responsible for delivery failures due to incorrect or incomplete address details provided by the customer.

5. Delivery Issues:

If a package is delayed, lost, or damaged during transit, please contact our support team immediately.
Claims for lost or damaged items must be reported within 48 hours of delivery.

6. No Return Policy for Opened/Soldered Products:

We do not accept returns for products that have been opened, used, or soldered.
Ensure you verify product compatibility before purchase, as returns will only be accepted for unopened and unused items in their original packaging.

7. Refund Policy:

Refunds will be issued only for canceled orders before shipment or wrong/damaged items received (subject to investigation).
No refunds or replacements for products that have been tampered with, soldered, or physically damaged by the customer.

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SKU: rz24310068

Detection Gas	Oxygen concentration
Detection range	0~100%
Working Pressure Range	0.5~2.0Bar
Working Voltage	3.3～5.5V DC
Output Signal	I2C , UART (0~3V) , analog voltage
Lifespan	＞2 years (in air)
Working Humidity Range	0-99% RH (non-condensing)
Working Temperature Range (°C)	-20°C ~ +50°C
Product Dimensions	32mm x 27mm/1.26 x 1.06 inch
Response Time ( μS)	＜5S
Mounting Holes Diameter (mm)	inner diameter 3.1mm(0.12 inch)/outer diameter 6mm(0.24 inch)

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Detection Gas	Hydrogen fluoride (HF)
Detection range	0~10ppm
Working Voltage	3.3～5.5V DC
Working Current	＜5mA
Working Temperature Range (°C)	-20 to 50
Working Humidity Range	15～90%RH (non-condensing)

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Model	DFRobot Gravity Lab Grade Analog ORP Sensor
PH2.0	Interface(3 foot patch)
Module Power	+5.00V
Working Temperature Range (°C)	5-70℃
Product Dimensions	40mm X 27mm(1.57″x1.06″)
Measuring Range	– 2000mV—2000mV
Accuracy	±10mv (25 ℃)
Response Time ( μS)	≤20sec

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SKU: rz24310084

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Detection Gas	Ammonia (NH3)
Detection range	0~100ppm
Working Voltage	3.3～5.5V DC
Working Current	＜5mA
Output Signal	I2C , UART (0~3V) , analog voltage
Compatibility	Arduino , ESP32 , Raspberry pi
Lifespan	>2 years (in the air)
Working Humidity Range	15～90%RH (non-condensing)
Working Temperature Range (°C)	-20～50℃
Product Dimensions	37 x 32mm

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Detection Gas	ozone (O3)
Detection range	0~10ppm
Working Voltage	3.3～5.5V DC
Working Current	＜5mA
Output Signal	I2C , UART (0~3V) , analog voltage
Compatibility	Arduino , ESP32 , Raspberry pi
Lifespan	>2 years (in the air)
Working Temperature Range (°C)	-20 to 50

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Model No.	TGS2611-C00
Sensing Principle	MOS type
Standard Package	TO-5 metal can
Target Gases	Methane , Natural Gas
Heater Voltage	5.0±0.2V DC
Circuit Voltage	5.0±0.2V DC
Load Resistance	variable 0.45kΩ min.
Heater Resistance	approx 59Ω at room temp.
Heater Current	56±5mA
Heater power consumption	280mW±25mW
Sensor Resistance	0.68~6.8kΩ in 5000ppm methane
Test Gas Conditions	Methane in air at 20±2˚C , 65±5%RH

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Circuit Voltage	5.0±0.2V DC pulse
Load Resistance	variable (>0.75kΩ)
Sensing Principle	MOS type
Sensor Resistance	0.3kΩ~5.0kΩ in 3000ppm methane 2kΩ~40kΩ in 200ppm CO
Standard Package	Plastic base and metal can
Target Gases	Methane and Carbon Monoxide
Test Gas Conditions	Target gas in air at 20±2˚C , 65±5%RH

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