Tetrahydrothiophene (THT) Gas Sensor, 0-50ppm

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$209.99

Ex Tax: $209.99

Stock: In Stock
Model: RDDLZ-GS-THT
Weight: 1.00
SKU: RDDLZ-GS-THT

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Low-cost THT gas sensor with a 0-50 ppm range, 0.5 ppm resolution, and ±10% precision. Suitable for air quality testing, industrial robots, chemical plants, coal mines, pipelines, and fire safety.

Specification

Model	RDDLZ-S4THT-50
Detection Principle	Electrochemical Three-Electrode
Detected Gas	Tetrahydrothiophene (C4H8S)
Detection Range	0-50 ppm
Maximum Load Concentration	100 ppm
Sensitivity	150 ±100 nA/ppm
Zero Drift	0-1 ppm
Resolution	0.5 ppm
Response Time	≤40s
Bias Voltage	0 mV
Load Resistance	5-30Ω
Temperature Range	-30°C to 50°C
Humidity Range	15%RH to 90%RH (Non-condensing)
Repeatability	<±2%
Long-term Stability	<2% Signal/Month
Linearity	Linear
Operating Pressure	90 to 110 kPa
Warranty	12 months after delivery

Dimension (Unit: mm)

Crossover Interference

The chlorine dioxide (ClO2) 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 (PPM)	Displayed Value (mg/m³ THT)
CO	500	-3
H₂S	25	8
N₂	100%	0
NO₂	23	35
CO₂	1000	0
H₂	2000	0

Basic Test Circuit

Application

Tetrahydrothiophene (THT) gas sensor can be used in air quality testing, industrial robots, chemical plants, coal mines, instrumentation underground piping, security workshops, fire emergency and so on.

Tips: Why is THT detection important for safety?

Since THT is used as an odorant in natural gas, its presence indicates a gas leak. If THT levels drop too low, gas leaks may go undetected, leading to explosion risks, suffocation hazards, and environmental contamination. A THT gas sensor ensures that:

Leaks are detected early, before reaching dangerous levels.
Proper odorant levels are maintained in gas distribution systems.
Industrial plants and refineries comply with safety regulations.

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