Hydrogen Chloride (HCl) Gas Sensor, 0-50ppm/0-500ppm

Write a review

$148.82

Low cost hydrogen chloride (HCl) gas sensor for sale. It detects 0-50 ppm or 0-500 ppm (optional) with a maximum load of 100 ppm. HCL gas sensor has 300 ±80 nA/ppm sensitivity, 0.1 ppm resolution (0-50 ppm), and 1 ppm resolution (0-500 ppm). The precision is ±10%, and the response time is ≤70s. Gas sensor works in 90-110 kPa pressure and -30°C to 50°C temperature. Can be used in industrial plants, transportation tunnels, energy and electric power, petroleum and petrochemical.

Measuring Range *

SKU: ATO-GS-HCL

Qty:

30-day Returns

Free Shipping

Delivery date: 6-12 days

Overview

Good price HCl gas sensor detects 0-50 ppm or 0-500 ppm (optional) with a 100 ppm max load. Features 300 ±80 nA/ppm sensitivity, 0.1 ppm (0-50 ppm) and 1 ppm (0-500 ppm) resolution, ±10% precision, and ≤70s response time. Works in 90-110 kPa pressure and -30°C to 50°C temperature. Great for industrial plants, tunnels, power, and petrochemical industries.

Specification

Model	ATO-S4-HCL
Detection Principle	Electrochemical Three-Electrode
Detected Gas	Hydrogen Chloride (HCl)
Detection Range	0~50 ppm, 0-500ppm (optional)
Maximum Load Concentration	100 ppm
Sensitivity	300 ±80 nA/ppm
Zero Drift	0~5 ppm
Resolution	0.1 ppm (0-50ppm), 1ppm (0-500ppm)
Precision	±10%
Response Time	≤70s
Operating Pressure	90 to 110 kPa
Temperature Range	-30°C to 50°C
Humidity Range	15%RH to 90%RH (Non-condensing)
Repeatability	< ±2% Signal/Month
Long-term Stability	< 2% Signal/Month
Linearity	Linear up to 100 ppm
Service Life	2 years

Dimension (Unit: mm)

Electrochemical gas sensors size

Crossover Interference

The hydrogen chloride (HCl) gas sensor also responds to gases other than the target gas. For reference, the response characteristics of the sensor to several common interfering gases are listed in the table below. The data in the table are typical responses of interfering gases at a given concentration.

Interfering Gas	Gas Concentration Used (ppm)	Displayed Value (ppm/HCl)
CO	100	0
H₂S	25	110
H₂	2000	0
NO	20	50
NO₂	10	1
SO₂	20	30

Basic Test Circuit

Gas sensor basic test circuit

Application

Hydrogen chloride (HCl) gas sensor can be used in industrial plants, transportation tunnels, energy and electric power, petroleum and petrochemical, coal mine tunnel, instrumentation, fruit trees and gardens, farms and pastures, agricultural greenhouses, floriculture, laboratories and so on.

HCL gas sensor application

Tips: What factors can affect the performance of this HCl gas sensor?

Several factors can influence the accuracy and longevity of the sensor:

Temperature & Humidity: The sensor operates within -30°C to 50°C and 15%RH to 90%RH (non-condensing). Extreme temperatures can affect sensor response, while high humidity may introduce minor signal drift.
Gas Interference: While the sensor is designed to be highly selective, exposure to gases such as SO₂, NO₂, and H₂S may cause slight cross-sensitivity effects. However, advanced filtering techniques minimize these impacts.
Calibration Frequency: Over time, sensor readings may drift due to electrode aging or environmental exposure. Regular calibration every 3-6 months ensures ongoing accuracy.
Long-Term Exposure to High Concentrations: Prolonged exposure to HCl levels near or beyond the maximum load concentration (100 ppm for the 0-50 ppm model, 1000 ppm for the 0-500 ppm model) may lead to temporary saturation or degradation of sensor components.

Write your review for Hydrogen Chloride (HCl) Gas Sensor, 0-50ppm/0-500ppm