DFRobot Gravity: O2 Sensor (Calibrated) &#8211; I2C &#038; UART

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SKU: rz24313571 Category: Gas and Dust Sensor

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 concentration of oxygen in the environment. Can be widely applied to fields like portable devices, air quality monitoring devices, industries, mines, warehouses, and other spaces where the air is not easy to circulate.

The probe adopts the electrochemical principle, has the characteristics of strong anti-interference ability, high stability, high sensitivity, etc., and the service life is as long as two years. The sensor has 32 modifiable I2C addresses, an integrated temperature compensation algorithm, and a threshold alarm function, It has good compatibility with mainstream main control devices such as Arduino, ESP32, and Raspberry Pi. The easy-to-use Gravity interface, coupled with our sample code, can quickly build an oxygen concentration detector.

DFRobot has introduced 12 gas detection sensors in this series, CO, O2, NH3, H2S, NO2, HCL, H2, PH3, SO2, O3, CL2, HF, which are used in exactly the same way and data format, so you can combine them according to your needs.

Applications:

Air quality monitoring device
Mining air detection
Environmental protection
Smart Farming

Features:

Strong anti-interference ability
High stability
High sensitivity

Specification:

Detection Gas: Oxygen (O2)
Detection range: 0~25%Vol
Working Voltage: 3.3～5.5V DC
Working Current: ＜5mA
Output Signal: I2C, UART (0~3V), analog voltage
Working Temperature: -20～50℃
Working Humidity: 15～90%RH (non-condensing)
Storage Temperature: -20～50℃
Storage Humidity: 15～90%RH (non-condensing)
Lifespan: >2 years (in the air)
Adapter Plate Size: 37*32mm
Compatibility: Arduino, ESP32, Raspberry pi

Package Includes:

1 x DFRobot Gravity: O2 Sensor (Calibrated) – I2C & UART

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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.
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Shipping charges are calculated at checkout based on the delivery location and package weight.
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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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Working Current	＜5mA
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Load Resistance	variable 0.45kΩ min
Sensor Resistance	10kΩ ~ 100kΩ in air
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