Hydrogen Sulfide Detection Sensor EC Sense ES1-H2S-100-01 with Low Detection Limit and High Accuracy

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Product Description

EC-Sense ES1-H2S-100 Hydrogen Sulfide Gas Sensor

The EC-Sense ES1-H2S-100 is a solid polymer technology gas sensor designed for the detection of Hydrogen Sulfide (H2S). It offers extreme linear response up to high concentrations, low noise, and a short warm-up time. With no electrolyte leakage and a low cost at large volumes, this sensor is ideal for various applications including water treatment plants, biogas applications, portable and fixed point monitoring, and leakage detection. It is individually calibrated and includes a test report.

Product Attributes

Brand: EC-Sense
Model: ES1-H2S-100
Technology: Solid Polymer
Origin: Germany
Housing Material: PPO
Weight: < 0.7 g
Warranty: 24 months

Technical Specifications

Specification	Value
Sensitivity	90 ± 20 nA / ppm
Zero Current	± 20 nA
Response Time (-T50)	< 10 s
Response Time (-T90)	< 30 s
Range	100 ppm
Repeatability	1 %
Lower Detectable Limit (LDL)	≤ 1 ppm
Resolution (16Bit ADC)	0.1 ppm
Maximum Overload	200 ppm
Linear Range	100 ppm
Temperature Range	-40 to 50 °C
Humidity Range (non condensing)	10 to 95 % R.H
Pressure Range	800 to 1200 hPa
Operating Principle	Amperometric, 3-electrode
Bias Voltage	0 mV
Recommended Load Resistor	100 Ω
Warm Up Time	< 20 s
Long Term Sensitivity Drift	< 1 %/month
Zero Drift in Clean Air	< 2 ppm
Storage Conditions	0-20 °C
Storage Life	6 months
Expected Life Time	> 3 years

Cross Sensitivity

Gas	Formula	Test Concentration (ppm)	Sensor Reading (ppm)
Ammonia	NH3	50	0
Carbon Dioxide	CO2	1000	0
Carbon Monoxide	CO	50	3
Chlorine	Cl2	10	-1.5
Methane	CH4	1%vol	0
Hydrogen	H2	100	3
Hydrogen Cyanide	HCN	10	0
Isopropanol	C3H7OH	1000	n.e.
Nitric Oxide	NO	25	0
Nitrogen Dioxide	NO2	10	-2.2
Sulphur Dioxide	SO2	10	n.e