Ozone (O3) Gas Sensor, 0-20ppm, RS485/TTL

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SKU: SUCH-GAS-O3

$212.59

● Detect: Ozone (O3) ● Rang: 0-20ppm ● Module output: TTL/RS485 ● Resolution: 0.5ppm

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🕒 Delivery date: 6-12 days

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Overview
Specs
Application
FAQ
Reviews

Overview

This good price Ozone gas sensor delivers reliable ozone detection, providing precise readings within the 0–20 ppm range with a resolution of 0.5 ppm. The O₃ sensor features RS485 or TTL output options, and its electrochemical three-electrode structure ensures accurate linear output even in harsh environments. Its compact, easy-to-install design combines long-term stability, making it a dependable choice for industrial integration or safety systems.

Feature

O3 sensor feature

Dimension (unit: mm)

O3 sensor dimension

Pin Definitions	Function Description	(MIN) V	(TYP) V	(MAX) V
GND	Power Ground	-0.3	0	——
IO1	Analog Signal Level	-0.3	3	3.3
VCC	Power Supply	4.5	5	5.5
TX	Serial Port Transmission	-0.3	3.2	3.3
RX	Serial Port Reception	-0.3	3.2	3.3

Working Principle

O3 sensor working principle

The signal from the ozone gas sensor undergoes amplification and filtering, after which the microprocessor performs theoretical calculations on the signal and outputs a digital signal. The filtering and amplification circuitry varies depending on the specific gas sensor.

Cross Interference

Interference Gas	Gas Concentration Used (ppm)	Displayed Value (ppm O₃)
CO	500	0
SO₂	20	0
H₂	1000	0
NH₃	40	0
NO₂	25	20
NO	35	0
Cl₂	20	15
H₂S	50	-15

Response Recovery Curve

O3 sensor response recovery curve

Temperature Dependency Curve

O3 sensor tempe dependence curve

Specs

Detection Principle	Electrochemical three-electrode
Detected Gas	O₃
Detection Range	0-20ppm
Maximum Load Concentration	50ppm
Sensitivity	-600±150nA/ppm
Zero Drift	0-1ppm
Resolution	0.5ppm
Communication Interface	RS485, TTL (optional)
Response Time	T₉₀<60s
Bias Voltage	0
Load Resistance	5~30Ω
Temperature Range	-30°C to 50°C
Humidity Range	15%RH to 90%RH (Non-condensing)
Repeatability	2% output signal
Long-term Stability	< 2% signal/month
Linearity	Linear
Operating Pressure	90 to 110 kPa
Warranty	12 months

Application

Medical O3 Sterilization Cabinet

Smart Municipal O3 Monitoring

Atmospheric O3 Monitoring

FAQ

Q1: What is an ozone gas sensor, and how does it work? ❯

An ozone gas sensor is a device that detects and measures the concentration of ozone (O₃) in the air. It typically operates on electrochemical principles, where ozone reacts on the sensor's electrode surface, generating an electrical signal proportional to its concentration.

Q2: How does a hydrogen sensor work? ❯

The gas sensor measures hydrogen concentration through electrochemical reactions on its electrode surface, generating a weak current proportional to gas concentration. This signal is then converted into readable ppm values.

Q3: How should an ozone sensor be installed? ❯

Install the O3 sensor in a well-ventilated area at breathing height, away from direct ozone sources, high humidity, and high-temperature environments. Avoid installation in enclosed spaces where ozone may accumulate.

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Ozone (O3) Gas Sensor, 0-20ppm, RS485/TTL

Feature

Dimension (unit: mm)

Working Principle

Cross Interference

Response Recovery Curve

Temperature Dependency Curve

Medical O3 Sterilization Cabinet

Smart Municipal O3 Monitoring

Atmospheric O3 Monitoring

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