AO-K-300 Portable Gas Leak Detector



K-300 portable gas detector is a new type of gas leak detector that adopts LSI technique and meets international smart technology standards. With imported high quality semi-conductor sensor and embedded microcontroller, it detects gas leakage with high sensitivity and strong adaptive ability. Being waterproof, dustproof, explosion-proof, and easy to use with high reliability, the detector is widely used in oil, coal, municipal construction, chemical engineering, environmental protection, metallurgy, refining, gas transmission and distribution, biochemistry, agriculture, pharmaceutical industries.

270,00 €

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Type of Instrument Gas detector
The instrument measures: Gas leaks
---------- INDUSTRY ------------ Gas Leak Detectors

*MCU control, low consumption

*High resolution STN LCD

*Housing made of high strength engineering plastics and compound anti-slip rubber

*Detection range (low alarm point, high alarm point) adjustable

*Low battery alert, intrinsically safe design

*4 alarm types: sound (mute mode also available), light,vibration and LCD indicator

*Gas calibration completed by the factory

*Zero adjustment and data logging

K-300 portable combustible gas leak detector



Sampling method

Natural diffusion

Alarm point

(low alarm point, high alarm point) adjustable Support personalized setting

Alarm types

Audible buzzer alarm; Visual LED light alarm; Vibration alarm,LCD indicator 

Warm-up time


Response time


Protection level


Explosion-proof grade

Exib IIB T3 Gb

Sensor type

Imported dedicated sensor

Screen 2.0inch colored LCD

Power supply

Rechargeable lithium battery, DC3.7V 

Charging time


Sensor life
2 years
Alarm methods
Sound, light, vibration, display.
290g (do not include accessories)
Working temperature

Temperature: -20~50℃ Humidity: ≤95% RH with no condensation.

Storage condition

Temperature: -20~50℃ Humidity: ≤85% RH, avoid caustic gases or substances. 


Approx. 208mm(L)×81mm(W)×25mm(H)

Packing list

Detector, Carrying case, Charger, USB cable, Warranty card, Qualified card.

K-300-LEL is the basic model for LEL (Lower Explosive Limit). For other models see table. Not all gases are on the list. Contact us for other gases.

The Lower Explosive Limit (LEL) is the lowest concentration of a gas or gas vapour that will burn in air.
The Lower Explosive Limit (LEL) varies from gas to gas. For most flammable gases it is less than 5% by volume.

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