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Formaldehyde Detection Sensor ProSense WH-N Featuring Passive Operation and Micro Fuel Cell Technology

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Formaldehyde Detection Sensor ProSense WH-N Featuring Passive Operation and Micro Fuel Cell Technology

Measurement Range : 0ppm~1ppm

Operating Temperature : -40℃~+70℃

Description : 0ppm~1ppm Gas Sensor RoHS

Mfr. Part # : WH-N

Model Number : WH-N

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Product Description

The WH-N type formaldehyde gas sensor utilizes a micro fuel cell principle for detection. When formaldehyde gas is present, gas molecules rapidly reach the core detection unit through natural diffusion and concentration polarization. An oxidation reaction occurs at the anode, while oxygen undergoes a reduction reaction at the cathode, forming a closed-loop reaction. The generated current is directly proportional to the formaldehyde gas concentration, allowing for accurate quantification of formaldehyde levels. This sensor features a pioneering solid electrolyte for fuel cells, ensuring safety, reliability, and a long lifespan. It boasts excellent anti-interference capabilities, unaffected by low-concentration interfering gases. As a passive device, it requires no external excitation during reaction, consuming zero power, making it ideal for portable instruments and battery-powered applications. Typical applications include smart homes, smartphones, wearable devices, smart buildings, air purifiers, handheld detectors, and air conditioners.

Product Attributes

Brand: WH-N
Origin: Not specified
Material: Not specified
Color: Not specified
Certifications: Not specified

Technical Specifications

Project	Technical Parameters
Principle	Micro fuel cell
Range	0-1ppm
Maximum Overload	5ppm
Sensitivity	200100 (nA/ppm)
Response Time	<120 seconds
Baseline Range (20)	30ppb
Repeatability	2%
Output Linearity	Linear
Working Temperature Range	-4070
Working Pressure Range	Standard atmospheric pressure10%
Working Humidity Range	1090 (non-condensing)
Service Life	6 years (normal use)
Warranty Period	12 months
Weight	3g
Cross-Interference (Interfering Gas: Concentration (ppm) -> Formaldehyde Concentration (ppm))	Alcohol: 2 -> 0.04; Ammonia: 10 -> 0; Benzene: 10 -> 0; Acetic Acid: 10 -> 0; Carbon Monoxide: 1000 -> 6; Hydrogen: 1000 -> 6

Precautions

Avoid contact with organic solvents and corrosive gases.
Do not store in dusty, dirty, or oxygen-deficient environments.
Do not expose to high concentrations of the measured gas.
Avoid excessive impact or vibration.
Unauthorized disassembly will void the warranty.

2504101957_ProSense-WH-N_C45385001.pdf

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