LH-480

5-IN-1 PERSONAL PORTABLE GAS DETECTOR(Diffusion)

LH-480 is an explosion-proof portable gas detector certified with CCS Type Approval, CCS Marine Product Certificate and National Explosion-proof Approval, specially designed for marine and industrial applications.Employing free-diffusion gas detection and high-grade international sensors, the unit delivers exceptional sensitivity and repeatability. Powered by a high-performance lithium battery, it supports more than 12 hours of continuous operation. Compact and lightweight, the instrument is easy to carry around; it responds rapidly with triple alarms to provide timely risk warnings and fully safeguard crew and vessel safety.

Model

LH-480
（5-IN-1 STANDARD EDITION）

LH-480
（5-IN-1 VLCC SHIPPING CUSTOM EDITION）

Detection Method

Free‑diffusion measurement

Detect Gas/Range/Resolution

Measured Gas

Range

Resolution

Measured Gas

Range

Resolution

Combustible Gas-EX

(0-100)%LEL

1%LEL

Combustible Gas-EX

(0-100)%VOL

1%LEE/

0.01%VOL

H₂S

(0-200)PPM

1PPM

H₂S

(0-200)PPM

1PPM

CO

(0-2000)PPM

1PPM

CO

(0-2000)PPM

1PPM

O₂

(0-30)%VOL

0.1%VOL

O₂

(0-30)%VOL

0.1%VOL

CO₂

(0-50000)PPM

100PPM

CO₂

(0-50000)PPM

100PPM

Sensor Type

CO、H₂S、O₂：Electrochemical Type；

Combustible Gas-EX：Catalytic Combustion Type

CO₂： Infrared Type

CO、H₂S、O₂：Electrochemical Type；

Combustible Gas-EX 、CO₂： Infrared Type

Sensor Lifespan

CO、H₂S、Combustible Gas-EX： 2-3 Years

O₂：5 Years

CO₂：10 Years

CO、H₂S、 2-3 Years

O₂：5 Years

Combustible Gas-EX、CO₂：10 Years

Alarm

Triple audible, visual and vibrato alarm

Ex-Marking

Ex ib IIC T4 Gb

Working Voltage

DC 3.7V 3200mAh lithium battery

Operation Time

3-4 hours charging, continuous working >12 hours

Working Environment

Temperature-20°C-+50°C; Humidity <95% RH (non-condensing)

Size and Weight

132mm69mm46mm,/0.28kg

Features&KeyHighlights

1、Modular sensor configuration equipped with high-quality imported sensors, featuring high detection sensitivity and excellent repeatability; adopts free-diffusion detection principle.
2、Triple audible, visual and vibration alarm; adjustable alarm thresholds, configurable calibration reminder function.
3、Chinese & English bilingual interface, high-definition display for clear readings; automatic self-test upon power-on to ensure reliable operation.
4、High-performance lithium battery built-in, providing over 12 hours continuous operation after full charge.
5、Approved with CCS Type Approval, CCS Marine Product Certificate and national explosion-proof certification; stable and durable, customizable extended warranty available.

Model	LH-480 （5-IN-1 STANDARD EDITION）			LH-480 （5-IN-1 VLCC SHIPPING CUSTOM EDITION）
Detection Method	Free‑diffusion measurement
Detect Gas/Range/Resolution	Measured Gas	Range	Resolution	Measured Gas	Range	Resolution
	Combustible Gas-EX	(0-100)%LEL	1%LEL	Combustible Gas-EX	(0-100)%VOL	1%LEE/ 0.01%VOL
	H₂S	(0-200)PPM	1PPM	H₂S	(0-200)PPM	1PPM
	CO	(0-2000)PPM	1PPM	CO	(0-2000)PPM	1PPM
	O₂	(0-30)%VOL	0.1%VOL	O₂	(0-30)%VOL	0.1%VOL
	CO₂	(0-50000)PPM	100PPM	CO₂	(0-50000)PPM	100PPM
Sensor Type	CO、H₂S、O₂：Electrochemical Type； Combustible Gas-EX：Catalytic Combustion Type CO₂： Infrared Type			CO、H₂S、O₂：Electrochemical Type； Combustible Gas-EX 、CO₂： Infrared Type
Sensor Lifespan	CO、H₂S、Combustible Gas-EX： 2-3 Years O₂：5 Years CO₂：10 Years			CO、H₂S、 2-3 Years O₂：5 Years Combustible Gas-EX、CO₂：10 Years
Alarm	Triple audible, visual and vibrato alarm
Ex-Marking	Ex ib IIC T4 Gb
Working Voltage	DC 3.7V 3200mAh lithium battery
Operation Time	3-4 hours charging, continuous working >12 hours
Working Environment	Temperature-20°C-+50°C; Humidity <95% RH (non-condensing)
Size and Weight	132mm69mm46mm,/0.28kg

LH-480

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