4-H2S-100 Hydrogen Sulfide (H2S) Gas Sensor | 0-100 ppm

4-H2S-100 Hydrogen Sulfide (H2​S) Gas Sensor 0-100 ppm

4-H2S-100 Hydrogen Sulfide (H2S) Gas Sensor | 0-100 ppm

High-precision 4-H2S-100 Hydrogen Sulfide Sensor (CLE-0112-400 CLE-0112-411) for industrial safety. 0-100 ppm range, 2-year life, & 18-month warranty. Shop at Sensorcheap.

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4-H2S-100 Hydrogen Sulfide () Gas Sensor | 0-100 ppm

The Classic Line 4-H2S-100 (CLE-0112-400； CLE-0112-411) is a high-precision electrochemical gas sensor designed for the detection of Hydrogen Sulfide () in industrial safety and environmental monitoring applications. Featuring a standard 4-series form factor, this sensor provides a reliable 0-100 ppm measurement range with excellent long-term stability and a fast response time of less than 35 seconds.

Ideal for portable gas detectors and fixed monitoring systems, the 4-H2S-100 ensures accurate readings even in challenging environments, backed by an 18-month warranty.

Key Features

  • Measurement Range: 0 – 100 ppm (with 500 ppm overload capacity).

  • High Resolution: Detects concentrations as low as 0.1 ppm.

  • Long Life: 2-year expected operating life in air.

  • Fast Response: response time seconds.

  • Stability: Linear output with less than 2% signal drift per month.

  • Plug-and-Play: Compatible with standard PCB sockets for industrial integration.

Technical Specifications

Performance Characteristics Data
Part Number CLE-0112-400 CLE-0112-411
Target Gas Hydrogen Sulfide ()
Measurement Range 0 – 100 ppm
Maximum Overload 500 ppm
Sensitivity
Resolution 0.1 ppm
Response Time ()  seconds
Baseline ()
Baseline Drift ( to ) 0 to 0.5 ppm equivalent
Linearity Linear
Long Term Stability < 2% signal value/month
Environmental & Operating Value
Operating Temperature  to 
Operating Humidity 15% – 90% RH (non-condensing)
Operating Pressure 90 to 110 kPa
Bias Voltage 0 mV
Expected Operating Life 2 years in air
Warranty Period 18 months from date of delivery
Storage Temperature  to 
Physical Characteristics Value
Weight Approx. 5 grams
Orientation Sensitivity None
Connection PCB Sockets (Recommended)

Cross-Sensitivity Data

While the 4-H2S-100 is highly specific to Hydrogen Sulfide, it may show slight responses to the following gases:

Interfering Gas Concentration (ppm) Output Signal (ppm  equiv.)
Carbon Monoxide (CO) 300 < 1.5
Sulfur Dioxide () 5 1
Nitric Oxide (NO) 35 < 0.7
Nitrogen Dioxide () 5 -1
Hydrogen () 100 0

Installation and Usage Notes

  • Connection Tip: Use recommended PCB sockets only. DO NOT solder directly to the sensor pins, as excessive heat will cause permanent damage to the internal components.

  • Calibration: For maximum accuracy, it is highly recommended to calibrate the sensor using the target gas (). Accuracy cannot be guaranteed if cross-sensitivity gases are used for calibration.

  • Environmental Factors: All performance specifications are tested at , 50% RH, and 100 kPa. Extreme conditions may affect baseline stability and sensitivity.

  • Storage: Sensors should be stored in their original packaging at to . Maximum shelf life is 6 months prior to installation.

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