Your Professional Instrument Supplier

Suzhou Huiwen Nanotechnology Co., Ltd is a high-tech company specializing in the development and production of advanced smart gas sensors and providing integrated gas detection solutions. At present, Our core products focused with gas sensors, detectors and high-end analyzers. For all products, we forces on quality, and innovation.

Electronic Nose Instrument IDM-D02
High sensitivity. High resolution. Low power consumption.
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Electronic Nose Data Acquisition System IDM-D03
High sensitivity. High resolution. Low power consumption.
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Point Type Combustible Fixed Gas Detector GWD31
High precision. Good stability. Easy to installation.
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Gas Transmitters GWD31E
Long life. High precision. Good stability.
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Gas Alarm Controller GWP1000
2.2 inch large size touch screen display, automatic backlight protection. Paint metal shell, small shape, easy to install . The external DTU can be connected to the IoT platform.
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Portable Gas Detector With Sound And Light Alarm Function...
It can detect 1 ~ 4 kinds of gas at the same time, and the unit can be switched freely. Large capacity data storage function , Supports multiple storage modes, RS485 communication option
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Why Choose us

ODM/OEM Services Available

We are capable of providing both Original Design Manufacturing (ODM) and Original Equipment Manufacturing (OEM) solutions to meet diverse customer requirements.

Comprehensive Product Qualifications

Our company holds a wide range of international certifications and possesses the capability to obtain additional necessary certifications to fulfill global market demands and customer-specific needs.

24/7 Online Support

We provide round-the-clock online assistance, ensuring prompt and efficient responses to inquiries and technical support requests.

Specification

Model	GWD31
Detection type	Diffusion
Detection gas	Combustible gas/hazardous gas
Alarm setting value	Combustible	Report in low level 25%LEL Report in high level 50%LEL
	Poisonous	Check the mark in the product
Display	LED
Measurement accuracy	±3%FS
Signal output	RS485,modbus,4-20mA
Explosion-proof mark	Ex db ⅡC T6 Gb
Rated operational voltage	DC24V
Installation Method	Fixed
Temperature range	-10℃～55℃
Humidity range	10～95%RH
IP Level	IP66
Pressure range	86kPa ～ 106kPa
Product size	L185.OOmm X W139.80mm X H78.50m
Measuring range	Combustible	3%LEL～100%LEL
	Poisonous	Check the mark in the product
Life time	≥ 2years

Types of Instrument

The instrument produced by our company mainly include the following types:

Electronic Nose Data Acquisition System IDM-D03

Point Type Combustible Fixed Gas Detector GWD31

Electronic Nose Instrument IDM-D02
The IDM-D03 electronic nose system consists of 32 different gas sensor including arrays, data acquisition and transmission modules. It is a mobile integrated data acquisition system tested for professional-grade gas and odor recognition.

Point Type Combustible Fixed Gas Detector GWD31
The GWD31 fixed gas detector is a gas sensor dedicated to the measurement of gas concentrations in the air. It uses a catalytic combustion sensor or an electrochemical sensor. Concentration data sampling from 0000 to 9999 digital display mode, intuitive understanding of the concentration status.

Gas Alarm Controller GWP1000
The GWP1000 Gas Alarm controller is a controller designed for combustible toxic gas detectors. It also supports two communication modes of bus line division system and has strong compatibility. Paint metal shell with 230*330*100 (mm) size,IP44 protection grade, large size touch screen display, automatic backlight protection, internal with double high, low alarm output, fault output, It can realize the alarm function, but also can link other equipment.

Portable Gas Detector With Sound And Light Alarm Function GWE4B
GWE4B Portable gas detector is used for rapidly detecting a variety of gas concentrations and ambient temperature and humidity, the measurement exceeds the limit value. It will show sound and light vibration alarm. Using 2.31 inch HD color screen real-time display. The main detection principles are: electrochemical , infrared, catalytic combustion, thermal conductivity, PID photoion and so on. Advanced circuit design, mature kernel algorithm processing, unique shape design.

Features of Instrument

Portable Gas Detector With Sound And Light Alarm Function
Portable gas detector with sound and light alarm function have many features, including:
Built-in internal sampling pump, 10 grades of suction are available.
Two-stage alarm with sound & light, and alarm point is settable.
Portable gas detector with sound and light alarm function adopts a high-accuracy Phosgene sensor with a fast response.
LCD directly reads out the Phosgene gas, unit, concentration, local time, etc.
Gas concentration units mg/m3 and ppm can be shifted by one press.
Handheld and small design, easy to carry, can be put in a pocket.
High-intensity ABS engineering plastics housing, suitable for different kinds of situations.

Working Principle

Portable gas detector work by continuously monitoring the surrounding environment for the presence of hazardous gases. These detectors are equipped with sensors that can detect specific types of gases, such as carbon monoxide, hydrogen sulphide, or combustible gases like methane. When the sensors detect the presence of gas, they send a signal to the detector’s microcontroller, which processes the data and determines if the gas concentration exceeds a safe threshold. If a hazardous level of gas is detected, the detector triggers an alarm to alert the user. This alarm can be audible, visual, or both, depending on the design of the detector. Portable gas leak detectors are commonly used in industrial settings, confined spaces, and other environments where there is a risk of gas leaks or exposure. They play a crucial role in ensuring the safety of workers by providing early warning of potential dangers, allowing them to take appropriate action to protect themselves and others.

Logistics

We will help you to choose the best shipping way according to your detail requirements. By sea, by air, or by express, etc.

The time frame of an order delivery is divided into two parts:

Processing time: 7-14 Days

Shipping time: 20~30 Days

Shipping methods:

DDP, DAP, EXW, etc.

Shipping fee:

The shipping fee will be changed according to every pacel's weight.

Certificates

FAQ

Q: How does the e-nose work?

A: E-noses have a series of sensors that correspond to components of an odor and analyzes its chemical makeup to identify it. They are much more sensitive than human noses as they have a greater number of receptor sensors with higher sensitivity.

Q: What is a combustible gas detector used for?

A: A combustible gas detector is a device designed to detect the presence of flammable gases in an area, providing an early warning of a potential hazard. The Lower Explosive Limit (LEL) varies, but for most flammable gases, it is less than 4% by volume.

Q: What is the life expectancy of a combustible gas detector?

A: Typical life greater than 4 years for combustible, O2, CO/H2S, SO2, CO/NO2 and CO (high concentration) sensors.

Q: How to know if a gas detector is working?

A: To do this, put the gas detector into bump test mode, then apply the gas. The gas detector will either cycle through each individual sensor or do them all at once, depending on the gas detector's settings. After the test is complete, the monitor will display results, showing whether it passed or failed the bump test.

We're well-known as one of the leading instrument manufacturers and suppliers in China. Be free to buy customized instrument at competitive price from our factory. For quotation and free sample, contact us now.

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