Product Details
KGD - MQ - 531 Biogas Analyzer (Smart Portable Type)
Product Introduction
The KGD - MQ - 531 Biogas Analyzer (Smart Portable Type) features a
portable design. It adopts non - dispersive infrared gas analysis
technology with independent intellectual property rights and long -
life electrochemical sensing technology. It can simultaneously
measure the volume concentrations of gases such as CH4, CO2, H2S,
and O2 in biogas components online. While inheriting the advantages
of the previous - generation product such as high accuracy and no
consumables, its volume has been reduced by 75% and its weight by
60%, making it outstandingly compact and more convenient to carry.
Product Features
- Portable Body Design: Easy to carry, it can meet the needs of both
on - site industrial measurement and laboratory air - bag sampling
analysis.
- High Measurement Accuracy: With a modular sensor design, it can
simultaneously measure the volume concentrations of gases such as
CH4, CO2, H2S, and O2 in biogas components online. CO and H2
sensors can be extended, and there is no cross - interference among
multi - component measured gases.
- Stable Working Performance: The sensor adopts a dual - channel
design, which is highly stable. It has a self - diagnosis function
and can check the sensor status online.
- Intelligent Battery Management: Equipped with a soft - start power
switch and intelligent battery management to prevent the instrument
from operating under low - battery conditions.
- Simple Data Management: Automatically stores measurement data, with
query and deletion functions. Data can be transmitted to the
superior centralized control system through multiple interfaces.
- Low Cost of Use: Compared with gas analysis technologies such as
Orsat and chromatography, the measurement process does not require
disassembly and installation, nor does it consume chemical
reagents. It is simple to operate and has no consumables.
- Can collect gas flow rate (requires a handheld flow meter to be
configured).
- Has a Bluetooth function, enabling the uploaded collection data to
be displayed on the APP.
Technical Parameters
Parameter | Details |
Measured Components | CH4/CO2/H2S/O2 /H2/CO |
Measurement Principle | CH4/CO2: NDIR; H2S/O2: ECD |
Measurement Range | CH4: (0 - 100)%; CO2: (0 - 50)%; H2S: (0 - 9999) ppm; O2: 0 - 25%
(All ranges are optional) |
Linear Error | CH4 /CO2: ±2%F.S., O2/H2S: ±3%F.S. |
Electrical Parameters | Electrical parameters |
Communication | USB interface, Bluetooth 4.0 |
Power Supply | Built - in 18650 rechargeable lithium - ion battery (replaceable),
external 5V/2A charger |
Display | Color LCD display |
Company Profile
Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of
measuring instruments , located in China xi’an City. Since 2008,
Xi'an Kacise focused on the development and production of pressure,
level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical
and management personnel, through efforts of our entire staff, we
have become a professional measuring instrument manufacturer and
solution provider. And we are continuously trying to improve
product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE,
intrinsic safety explosion-proof and isolated safety
explosion-proof certificates, etc. which ensure that our products
comply with international standards.

Kacise sensors have already been exported to America, Spain,
Australia, Chile and 20 other countries and regions, and received
many favorable feedbacks. Our overseas distributers are also
increasing. We regard “reasonable prices, efficient production time
and good after-sales service” as our tenet, and hope to cooperate
with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices,
and provides industry-leading customer service. We personally get
to know each of our customers, and we know how to discover the most
valuable part of our business , to help others achieve their goals.