Gas sensor with UART digital output and analog voltage output allows flexible integration into gas detection systems, IoT devices, and safety control equipment. Its compact design and easy installation are suitable for both portable and fixed gas detection applications.
Gas sensor can detect methane (CH₄), propane (C₃H₈), and isobutane (C₄H₁₀) quickly
- The SISCO NDIR gas sensor is capable of accurately detecting hydrocarbon gases such as methane (CH₄), propane (C₃H₈), and isobutane (C₄H₁₀), providing reliable multi-gas monitoring for combustible gas safety applications.
- The combustible gas sensor features ultra-low power consumption, suitable for long-term battery-powered and portable gas detection systems.
- It adopts non-dispersive infrared (NDIR) technology to ensure high selectivity for hydrocarbon combustible gases without cross-interference.
- The gas sensor delivers high sensitivity and fast response time, enabling real-time detection of gas concentration changes.
- Support multiple measurement ranges including 0 ~ 10% VOL, 0 ~ 15% VOL, and 0 ~ 100% LEL (optional) for flexible gas concentration detection in different applications.
Multiple Output Modes (UART & Analog Voltage)
- Built-in temperature compensation ensures stable and accurate performance under different environmental conditions.
- It provides excellent long-term stability and a long service life, reducing maintenance cost in industrial applications.
- The SISCO-GS- MH-T4041A gas sensor supports multiple output modes, including UART digital output and analog voltage output for flexible system integration.
- Non-dispersive infrared gas sensor is resistant to water vapor interference and does not suffer from poisoning, ensuring reliable operation in harsh environments.
- With compact design and high performance, it can directly replace catalytic combustion sensors in combustible gas detection systems.
Applications
The NDIR gas sensor is widely used in industrial safety monitoring, oil & gas facilities, and chemical plants for accurate combustible gas detection. It is also suitable for environmental monitoring, HVAC systems, and smart building safety solutions, supporting reliable NDT inspection and gas leak detection applications.
Natural Gas
Chemical Plants
Environmental Monitoring
Petroleum
| Model | SISCO-GS-MH-T4041A |
| Detection Gas | Hydrocarbon flammable gases |
| Working Voltage | 3.3V ~ 5.5V DC (powered by the safety grid) |
| Average Current | < 0.8 mA |
| Detection Range | 0 ~ 10% VOL, 0 ~ 15% VOL , 0 ~ 100% LEL (optional) |
| Interface Level | 3V |
| Output Signal | UART (3.0V or 5.0V) |
| Preheat Time | < 10 s |
| Response Time | T90 < 15 s |
| Working Temperature | -20°C ~ 60°C |
| Working Humidity | 0 ~ 95% RH (non-condensing) |
| Dimension | Φ20 mm × 21.7 mm |
| Weight | 8 g |
| Lifetime | > 5 years |
| Protection Level | IP54 |
| Power End / Communication / Intrinsic Safety | Ui = 7.5 VDC, Ii = 200 mA, Pi = 375 mW, Ci = 4.5 µF, Li = 0 mH |
Standard Measurement Ranges and Accuracy
| Gas | Molecular Formula | Range | Resolution | Decimal Place | Accuracy |
| Methane | CH4 | 0 ~ 5.00% Vol | 0.01% Vol | 2 decimal | ±3% FS (10°C ~ 40°C) |
| Methane | CH4 | 0 ~ 10.00% Vol | 0.01% Vol | 2 decimal | ±3% FS (10°C ~ 40°C) |
| Propane | C3H8 | 0 ~ 100% LEL | 1% LEL | None | ±5% FS (-20°C ~ 10°C, 40°C ~ 60°C) |
| Isobutane | C4H10 | 0 ~ 100% LEL | 1% LEL | None | ±5% FS (-20°C ~ 10°C, 40°C ~ 60°C) |
Dimension (unit: mm)
Pin Definition
Q1: What is an NDIR gas sensor?
A1: An NDIR gas sensor (Non-Dispersive Infrared Gas Sensor) is a device that detects gas concentration by measuring infrared light absorption, providing accurate and stable detection of combustible gases.
Q2: Which gases can this gas sensor detect?
A2: This gas sensor can detect hydrocarbon gases such as methane (CH₄), propane (C₃H₈), and isobutane (C₄H₁₀) for reliable combustible gas monitoring.
Q3: What are the advantages of using an NDIR gas sensor?
A3: NDIR gas sensors offer high selectivity, long service life, no poisoning risk, low power consumption, and stable performance in harsh environments.
Tips: Where is a gas sensor commonly used?
Gas sensors are widely used in industrial safety systems, oil and gas facilities, chemical plants, HVAC systems, and environmental monitoring applications for leak detection and air quality control.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
What is covered?
SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.
What is not covered?
- Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
- Expendable parts.
- Routine cleaning or normal cosmetic and mechanical wear.
- Damage from misuse, abuse or neglect.
- Damage from use of parts other than SISCO approved.
- Damage from use outside the product’s usage or storage parameters.
- Damage from use of parts not sold by SISCO.
- Damage from modification or incorporation into other products.
- Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
- Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
Shop on sisco.com for all of your industrial test and measurement equipment & accessories including portable detectors, meters, testers, scales, etc.
