DFRobot Gravity NH3 Sensor (Calibrated) &#8211; I2C &amp; UART

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SKU: rz24310084 Category: Gas and Dust Sensor

Description

This is a sensor that detects ammonia 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 ammonia in the environment. Can be widely used in the detection of ammonia in industrial and environmental protection fields.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 PIE. The easy-to-use Gravity interface, coupled with our sample code, can quickly build an ammonia 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:

Industrial ammonia detection
Environmental protection device

Features:

Strong anti-interference ability
High stability
High sensitivity

Package Includes:

1 x DFRobot Gravity NH3 Sensor (Calibrated) – I2C & UART

Additional information

Model	DFRobot Gravity NH3 Sensor
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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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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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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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
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Heater Current	56±5mA
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Temperature differential between inside and outside detector casing	≤10˚C max. (see NOTE 1)
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Circuit Voltage	5.0±0.2V DC
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Heater Current	56±5mA
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Typical detection range	0 ~ 5 , 000ppm
Baseline offset(*1)	<±10ppm equivalent
Operating temperature	10˚C ~ +50˚C (continuous) -20˚C ~ +60˚C (intermittent)
Operating humidity	10 ~ 95%RH (no condensation)
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