Fixed Gas Detectors

GTYQ-MIC-500S Fixed Single-Gas Detector

GTYQ-MIC-500S

Certificates & documents

View all (4)

CertificateZII26080321001

CertificateCE24.5821X

CertificateCE23.5160X

Certificate2026081801000376

Product overview

A fixed detector for continuous monitoring of one selected gas with industrial analog and digital outputs.

Continuous fixed single-gas monitoring

GTYQ-MIC-500S is a fixed detector for continuously monitoring one selected toxic, combustible or other target gas. Diffusion measurement is used for standard fixed installation, with pipeline or pumped arrangements available where the sampling conditions require them.

The detector supports 4–20 mA and RS485 Modbus RTU communication, relay alarming and non-intrusive infrared operation. The gas, range, sensor principle and output configuration are selected for the monitoring point.

Sampling method: Diffusion
Ingress protection: IP66
Operating temperature: -20 °C to 55 °C

Request a Quote View specifications

Technical specifications

Confirmed technical specifications
Ingress protection	IP66
Dimensions	240 × 160 × 90 mm; 240 × 220 × 90 mm with alarm (L × W × H)
Weight	1.4 kg — 1.6 kg with the audio-visual alarm.
Operating temperature	-20 °C to 55 °C
Sampling method	Diffusion
Display size	1.7 in
Data storage	> 100,000 records

Standard gas configuration: 1 gas
Expanded gas configuration: No higher gas-count expansion documented
Typical measurement accuracy: ≤ ±3% FS; higher-accuracy sensors available
Response time: T90 ≤ 30 s
Recovery time: ≤ 30 s
Operating humidity: 10–95% RH, non-condensing
Power supply: 24 V DC; 220 V AC optional
Signal output: RS485 Modbus RTU and three-wire 4–20 mA standard; two-wire 4–20 mA optional
Alarm output: One dry-contact output standard; two available as an option; local audible and visual alarm optional
Wireless options: 433 MHz, LoRa, Wi-Fi, 4G/5G and NB-IoT configurations
Explosion protection: Ex db IIC T6 Gb / Ex tb IIIC T80 °C Db
Standard accessories: Operating instructions, product conformity document, warranty card, infrared remote control and outer packaging
Local operation: 3-key keypad and infrared remote control

Supported gas configurations

Review the documented gas and measuring-range options, then request compatibility confirmation for the required configuration.

Gas

Combustible Gas · EX

Measuring range0–100 %LEL

Resolution0 %LEL

Add Combustible Gas · EX 0–100 %LEL to request

Measuring range0–100 %Vol

Resolution0 %Vol

Add Combustible Gas · EX 0–100 %Vol to request

Gas

Oxygen · O₂

Measuring range0–30 %Vol

Resolution0 %Vol

Add Oxygen · O₂ 0–30 %Vol to request

Measuring range0–100 %Vol

Resolution0 %Vol

Add Oxygen · O₂ 0–100 %Vol to request

Measuring range0–1,000 ppm

Resolution1 ppm

Add Oxygen · O₂ 0–1,000 ppm to request

Measuring range0–50,000 ppm

Resolution1 ppm

Add Oxygen · O₂ 0–50,000 ppm to request

Gas

Carbon Monoxide · CO

Measuring range0–100 %Vol

Resolution0 %Vol

Add Carbon Monoxide · CO 0–100 %Vol to request

Measuring range0–500 ppm

Resolution0 ppm

Add Carbon Monoxide · CO 0–500 ppm to request

Measuring range0–1,000 ppm

Resolution1 ppm

Add Carbon Monoxide · CO 0–1,000 ppm to request

Measuring range0–2,000 ppm

Resolution1 ppm

Add Carbon Monoxide · CO 0–2,000 ppm to request

Measuring range0–20,000 ppm

Resolution1 ppm

Add Carbon Monoxide · CO 0–20,000 ppm to request

Measuring range0–100,000 ppm

Resolution1 ppm

Add Carbon Monoxide · CO 0–100,000 ppm to request

Gas

Hydrogen Sulfide · H₂S

Measuring range0–10 ppm

Resolution0 ppm

Add Hydrogen Sulfide · H₂S 0–10 ppm to request

Measuring range0–50 ppm

Resolution0 ppm

Add Hydrogen Sulfide · H₂S 0–50 ppm to request

Measuring range0–100 ppm

Resolution0 ppm

Add Hydrogen Sulfide · H₂S 0–100 ppm to request

Measuring range0–200 ppm

Resolution0 ppm

Add Hydrogen Sulfide · H₂S 0–200 ppm to request

Measuring range0–10,000 ppm

Resolution1 ppm

Add Hydrogen Sulfide · H₂S 0–10,000 ppm to request

Measuring range0–20,000 ppm

Resolution1 ppm

Add Hydrogen Sulfide · H₂S 0–20,000 ppm to request

Measuring range0–50,000 ppm

Resolution1 ppm

Add Hydrogen Sulfide · H₂S 0–50,000 ppm to request

4 of 57 gases shown · 160 gas/range options

For gases not listed in this table, contact technical sales to discuss your requirements.

Read all 160 documented gas and measuring-range options

Gas

Hydrogen Sulfide · H₂S

Measuring range0–10 ppm

Resolution0 ppm

Measuring range0–50 ppm

Resolution0 ppm

Measuring range0–100 ppm

Resolution0 ppm

Measuring range0–200 ppm

Resolution0 ppm

Measuring range0–10,000 ppm

Resolution1 ppm

Measuring range0–20,000 ppm

Resolution1 ppm

Measuring range0–50,000 ppm

Resolution1 ppm

Gas

Carbon Monoxide · CO

Measuring range0–100 %Vol

Resolution0 %Vol

Measuring range0–500 ppm

Resolution0 ppm

Measuring range0–1,000 ppm

Resolution1 ppm

Measuring range0–2,000 ppm

Resolution1 ppm

Measuring range0–20,000 ppm

Resolution1 ppm

Measuring range0–100,000 ppm

Resolution1 ppm

Gas

Oxygen · O₂

Measuring range0–30 %Vol

Resolution0 %Vol

Measuring range0–100 %Vol

Resolution0 %Vol

Measuring range0–1,000 ppm

Resolution1 ppm

Measuring range0–50,000 ppm

Resolution1 ppm

Gas

Methane · CH₄

Measuring range0–100 %LEL

Resolution0 %LEL

Measuring range0–100 %Vol

Resolution0 %Vol

Gas

Carbon Dioxide · CO₂

Measuring range0–10 %Vol

Resolution0 %Vol

Measuring range0–20 %Vol

Resolution0 %Vol

Measuring range0–50 %Vol

Resolution0 %Vol

Measuring range0–2,000 ppm

Resolution1 ppm

Measuring range0–5,000 ppm

Resolution1 ppm

Measuring range0–10,000 ppm

Resolution1 ppm

Measuring range0–50,000 ppm

Resolution1 ppm

Gas

Ammonia · NH₃

Measuring range0–100 %LEL

Resolution0 %LEL

Measuring range0–50 ppm

Resolution0 ppm

Measuring range0–100 ppm

Resolution0 ppm

Measuring range0–1,000 ppm

Resolution1 ppm

Measuring range0–5,000 ppm

Resolution1 ppm

Measuring range0–10,000 ppm

Resolution1 ppm

Gas

Chlorine · Cl₂

Measuring range0–10 ppm

Resolution0 ppm

Measuring range0–20 ppm

Resolution0 ppm

Measuring range0–200 ppm

Resolution0 ppm

Measuring range0–1,000 ppm

Resolution1 ppm

Gas

Sulfur Dioxide · SO₂

Measuring range0–10 ppm

Resolution0 ppm

Measuring range0–20 ppm

Resolution0 ppm

Measuring range0–100 ppm

Resolution0 ppm

Measuring range0–500 ppm

Resolution0 ppm

Measuring range0–2,000 ppm

Resolution1 ppm

Measuring range0–5,000 ppm

Resolution1 ppm

Measuring range0–10,000 ppm

Resolution1 ppm

Gas

Nitric Oxide · NO

Measuring range0–25 ppm

Resolution0 ppm

Measuring range0–100 ppm

Resolution0 ppm

Measuring range0–2,000 ppm

Resolution0 ppm

Measuring range0–5,000 ppm

Resolution1 ppm

Gas

Nitrogen Dioxide · NO₂

Measuring range0–20 ppm

Resolution0 ppm

Measuring range0–200 ppm

Resolution0 ppm

Measuring range0–1,000 ppm

Resolution1 ppm

Measuring range0–5,000 ppm

Resolution1 ppm

Gas

Hydrogen · H₂

Measuring range0–100 %LEL

Resolution0 %LEL

Measuring range0–100 %Vol

Resolution0 %Vol

Measuring range0–1,000 ppm

Resolution0 ppm

Measuring range0–20,000 ppm

Resolution1 ppm

Measuring range0–40,000 ppm

Resolution1 ppm

Gas

Volatile Organic Compounds · VOC

Measuring range0–10 ppm

Resolution0 ppm

Measuring range0–200 ppm

Resolution0 ppm

Measuring range0–2,000 ppm

Resolution1 ppm

Measuring range0–10,000 ppm

Resolution1 ppm

Gas

Hydrogen Cyanide · HCN

Measuring range0–30 ppm

Resolution0 ppm

Measuring range0–100 ppm

Resolution0 ppm

Gas

Hydrogen Chloride · HCl

Measuring range0–20 ppm

Resolution0 ppm

Measuring range0–200 ppm

Resolution0 ppm

Measuring range0–2,000 ppm

Resolution1 ppm

Gas

Phosphine · PH₃

Measuring range0–5 ppm

Resolution0 ppm

Measuring range0–25 ppm

Resolution0 ppm

Measuring range0–2,000 ppm

Resolution1 ppm

Gas

Combustible Gas · EX

Measuring range0–100 %LEL

Resolution0 %LEL

Measuring range0–100 %Vol

Resolution0 %Vol

Gas

Chlorine Dioxide · ClO₂

Measuring range0–1 ppm

Resolution0 ppm

Measuring range0–10 ppm

Resolution0 ppm

Measuring range0–200 ppm

Resolution0 ppm

Gas

Ethylene Oxide · ETO

Measuring range0–100 %LEL

Resolution1 %LEL

Measuring range0–100 ppm

Resolution0 ppm

Measuring range0–1,000 ppm

Resolution1 ppm

Gas

Phosgene · COCl₂

Measuring range0–1 ppm

Resolution0 ppm

Measuring range0–50 ppm

Resolution0 ppm

Gas

Silane · SiH₄

Measuring range0–1 ppm

Resolution0 ppm

Measuring range0–50 ppm

Resolution0 ppm

Measuring range0–1,000 ppm

Resolution1 ppm

Gas

Fluorine · F₂

Measuring range0–1 ppm

Resolution0 ppm

Measuring range0–10 ppm

Resolution0 ppm

Measuring range0–50 ppm

Resolution0 ppm

Gas

Hydrogen Fluoride · HF

Measuring range0–10 ppm

Resolution0 ppm

Measuring range0–50 ppm

Resolution0 ppm

Gas

Formaldehyde · CH₂O

Measuring range0–10 ppm

Resolution0 ppm

Measuring range0–50 ppm

Resolution0 ppm

Measuring range0–100 ppm

Resolution0 ppm

Gas

Hydrogen Bromide · HBr

Measuring range0–50 ppm

Resolution0 ppm

Measuring range0–2,000 ppm

Resolution1 ppm

Gas

Diborane · B₂H₆

Measuring range0–10 ppm

Resolution0 ppm

Gas

Arsine · AsH₃

Measuring range0–1 ppm

Resolution0 ppm

Measuring range0–10 ppm

Resolution0 ppm

Gas

Ozone · O₃

Measuring range0–1 ppm

Resolution0 ppm

Measuring range0–10 ppm

Resolution0 ppm

Measuring range0–50 ppm

Resolution0 ppm

Measuring range0–100 ppm

Resolution0 ppm

Measuring range0–2,000 ppm

Resolution1 ppm

Measuring range0–30,000 ppm

Resolution1 ppm

Gas

Germane · GeH₄

Measuring range0–2 ppm

Resolution0 ppm

Measuring range0–20 ppm

Resolution0 ppm

Gas

Hydrazine · N₂H₄

Measuring range0–1 ppm

Resolution0 ppm

Measuring range0–300 ppm

Resolution0 ppm

Gas

Tetrahydrothiophene · THT

Measuring range0–100 mg/m3

Resolution0 mg/m3

Gas

Bromine · Br₂

Measuring range0–10 ppm

Resolution0 ppm

Measuring range0–50 ppm

Resolution0 ppm

Gas

Acetylene · C₂H₂

Measuring range0–100 %LEL

Resolution0 %LEL

Measuring range0–100 ppm

Resolution0 ppm

Measuring range0–1,000 ppm

Resolution1 ppm

Measuring range0–10,000 ppm

Resolution1 ppm

Gas

Ethylene · C₂H₄

Measuring range0–100 %LEL

Resolution0 %LEL

Measuring range0–100 ppm

Resolution0 ppm

Measuring range0–1,000 ppm

Resolution1 ppm

Measuring range0–10,000 ppm

Resolution1 ppm

Gas

Ethanol · C₂H₆O

Measuring range0–100 %LEL

Resolution0 %LEL

Measuring range0–100 ppm

Resolution0 ppm

Measuring range0–2,000 ppm

Resolution1 ppm

Gas

Methanol

Measuring range0–100 %LEL

Resolution0 %LEL

Measuring range0–100 ppm

Resolution0 ppm

Measuring range0–2,000 ppm

Resolution1 ppm

Gas

Nitrogen Oxides · NOₓ

Measuring range0–100 ppm

Resolution0 ppm

Measuring range0–5,000 ppm

Resolution1 ppm

Gas

Carbon Disulfide · CS₂

Measuring range0–50 ppm

Resolution0 ppm

Measuring range0–5,000 ppm

Resolution1 ppm

Gas

Acrylonitrile · C₃H₃N

Measuring range0–50 ppm

Resolution0 ppm

Measuring range0–100 ppm

Resolution0 ppm

Measuring range0–2,000 ppm

Resolution1 ppm

Gas

Nitrous Oxide · N₂O

Measuring range0–100 ppm

Resolution0 ppm

Measuring range0–5,000 ppm

Resolution1 ppm

Gas

Methylamine

Measuring range0–50 ppm

Resolution0 ppm

Gas

Benzene · C₆H₆

Measuring range0–10 ppm

Resolution0 ppm

Measuring range0–100 ppm

Resolution0 ppm

Gas

Toluene · C₇H₈

Measuring range0–10 ppm

Resolution0 ppm

Measuring range0–20,000 ppm

Resolution1 ppm

Gas

Xylene · C₈H₁₀

Measuring range0–10 ppm

Resolution0 ppm

Measuring range0–200 ppm

Resolution0 ppm

Gas

Styrene · C₈H₈

Measuring range0–200 ppm

Resolution0 ppm

Measuring range0–6,000 ppm

Resolution1 ppm

Gas

Vinyl Chloride · C₂H₃Cl

Measuring range0–200 ppm

Resolution0 ppm

Gas

Trichloroethylene · C₂HCl₃

Measuring range0–200 ppm

Resolution0 ppm

Gas

Tetrachloroethylene (PID) · C₂Cl₄

Measuring range0–200 ppm

Resolution0 ppm

Gas

Methyl Bromide · CH₃Br

Measuring range0–200 g/m3

Resolution0 g/m3

Measuring range0–200 ppm

Resolution0 ppm

Measuring range0–10,000 ppm

Resolution1 ppm

Gas

Helium · He

Measuring range0–100 %Vol

Resolution0 %Vol

Gas

Argon · Ar

Measuring range0–100 %Vol

Resolution0 %Vol

Gas

Xenon · Xe

Measuring range0–100 %Vol

Resolution0 %Vol

Gas

Nitrogen Trifluoride · NF₃

Measuring range0–100 ppm

Resolution0 ppm

Measuring range0–5,000 ppm

Resolution1 ppm

Gas

Sulfuryl Fluoride · SO₂F₂

Measuring range0–200 ppm

Resolution0 ppm

Measuring range0–5,000 ppm

Resolution1 ppm

Gas

Acetaldehyde

Measuring range0–10 ppm

Resolution0 ppm

Gas

Total Volatile Organic Compounds · TVOC

Measuring range0–10 ppm

Resolution0 ppm

Measuring range0–100 ppm

Resolution0 ppm

Measuring range0–1,000 ppm

Resolution1 ppm

Measuring range0–10,000 ppm

Resolution1 ppm

Gas

Iodine · I₂

Measuring range0–50 ppm

Resolution0 ppm

Gas

Sulfur Hexafluoride · SF₆

Measuring range0–100 ppm

Resolution0 ppm

Measuring range0–3,000 ppm

Resolution1 ppm

Communication and product capabilities

Included as standard

Confirmed product-wide interfaces and functions

RS485
Infrared

Options for technical review

Select requirements for technical confirmation

HARTOptional
Add to request
LoRaOptional
Add to request
4GOptional
Add to request
NB-IoTOptional
Add to request
Wi-FiOptional
Add to request

Certificates & documents

Certificate

Environmental Labeling (Type II) Product Verification Certificate ZII26080321001

ZII26080321001

Status: active · valid to Sep 16, 2027

Type II environmental labeling verification covering the exact product models listed in the certificate attachment.

Issuer: 广东中天认证中心有限公司
applicant: 深圳市逸云天电子有限公司
manufacturer: 深圳市逸云天电子有限公司

Scope: Model BTYQ-MS104K-M is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model BTYQ-MS104K-L is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model BTYQ-MS104K-S1 is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model BTYQ-MS104K-S2 is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model BTYQ-MS400-S is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model BTYQ-MS600-S is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model BTYQ-MS600-S1 is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model BTYQ-MS600-S2 is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model BTYQ-PTM600-S is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model BTYQ-PTM600-S2 is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model GTYQ-MIC-500S is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model GTYQ-MIC-600 is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model MIC-1000 is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: The certificate lists MIC-3000; the CMS model code MIC3000 is linked through its governed MIC-3000 source identity. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model MIC-200-UVIR2 is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model MIC-200-IR3 is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model MIC-200-UVIR3 is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model MIC-200-IR4 is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

Scope: Model MIC-200-UVIR4 is listed on the certificate attachment. Scope is limited to the Type II environmental labeling claim verified under GB/T 24021-2024 / ISO 14021:2016 and ZTIIPJ01-01-2026.

View document

Certificate

China Explosion-Proof Certificate of Conformity CE24.5821X

CE24.5821X

View document

Certificate

China Explosion-Proof Certificate of Conformity CE23.5160X

CE23.5160X

View document

Certificate

China Compulsory Certification (CCC) 2026081801000376

2026081801000376

View document

Downloads

datasheetGTYQ-MIC-500S English technical summary

Open PDF

Compare adjacent models

Certificates & documents (13)

BTYQ-MS104K-S2

MS104K-S2 Portable Single- or Two-Gas Detector

A portable diffusion gas detector configurable for single- or two-gas monitoring.

Gas configuration: Standard: 1–2 gases
Sampling: Diffusion
Ingress: IP68
Data storage: > 1,000,000 records

Certificates & documents (3)

GTYQ-MIC-600

GTYQ-MIC-600 Fixed Multigas Detector

A fixed multigas detection platform with local display, data logging and configurable industrial outputs.

Gas configuration: Standard: 1–6 gases
Sampling: Diffusion
Ingress: IP66
Signal output: RS485 Modbus RTU and three-wire 4–20 mA standard; HART 5 optional

Certificates & documents (9)

BTYQ-MS600-S1

MS600-S1 Smart Portable Multigas Detector

A pumped portable instrument for configurable multigas and environmental monitoring with a 4-inch touchscreen.

Gas configuration: Standard: 1–6 gases; Expansion: No higher gas-count expansion documented
Sampling: Pump
Ingress: IP66
Data storage: > 10,000,000 records

Discuss your requirements

Selected product

GTYQ-MIC-500S

Select the required gases and measuring ranges, and review the listed communication options. Technical sales will confirm compatibility and the final configuration with you.

Request product information

Tell us about your requirement

Inquiry type

Name

Company

Business email

Country / market

Gas / range requirements

Hydrogen Sulfide · 0–10 ppm

Hydrogen Sulfide · 0–50 ppm

Hydrogen Sulfide · 0–100 ppm

Hydrogen Sulfide · 0–200 ppm

Hydrogen Sulfide · 0–10,000 ppm

Hydrogen Sulfide · 0–20,000 ppm

Hydrogen Sulfide · 0–50,000 ppm

Carbon Monoxide · 0–100 %Vol

Carbon Monoxide · 0–500 ppm

Carbon Monoxide · 0–1,000 ppm

Carbon Monoxide · 0–2,000 ppm

Carbon Monoxide · 0–20,000 ppm

Choose up to 1 gas for this product. for other requirements.

Communication and positioning options

RS485 · Standard

Infrared · Standard

HART · Optional

LoRa · Optional

4G · Optional

NB-IoT · Optional

Wi-Fi · Optional

Other gas requirements

Other range requirements

Estimated quantity

Project details

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