Attributes

Brand	-
Category	Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin	-
Measurement Range	0-25% VOL
Output Interface	TTL/RS-485
Working Voltage	5V DC
Response Time	≤30 Seconds
Sensor Lifespan	2 Years (in air)
Operating Temperature	-20°C to 50°C
Storage Temperature	-30°C to 60°C
Precision	±0.1% VOL
Preheat Time	< 3 Minutes
Module Dimensions	35mm x 25mm x 15mm

5 reviews

Anonymous

Apr 11, 2026

Rating: 5/5

Great for education

Used for a science project. Safe and low voltage makes it perfect for student labs involving environmental monitoring.

Anonymous

Apr 05, 2026

Rating: 4/5

Good but warmup needed

Accuracy is good after preheating. Wish it was faster to start, but the 3-minute warmup ensures stability.

Anonymous

Feb 27, 2026

Rating: 5/5

Reliable comms

RS-485 works over long distances without noise. Much better than analog sensors for our automation rack.

Anonymous

Feb 22, 2026

Rating: 5/5

Works perfectly

Integrated easily with my PLC system. Stable readings and the RS-485 output is very reliable for industrial settings.

Anonymous

Jan 21, 2026

Rating: 4/5

Good for greenhouse

Monitoring O2 levels for composting systems. Solid build quality and documentation was easy to follow.

5 FAQ

Q: How to change baud rate?

A: Send the specific command frame via UART as per the protocol manual included in the download section.

Q: Does it detect CO2?

A: No, this sensor is specific to Oxygen (O2) concentration. Please check our CO2 module for carbon dioxide detection.

Q: Max cable length for RS-485?

A: Up to 1200 meters depending on the environment and cable quality. Ensure proper shielding for noisy areas.

Q: Replacement sensor available?

A: Yes, the electrochemical cell is replaceable. Please contact support for part numbers and replacement guides.

Q: Is this medical grade?

A: No, this sensor is designed for industrial and environmental use only. It is not suitable for medical applications.

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