4 in 1 AS8900 Multi Gas Monitor AS8900 Gas Analyzer for detect O2, CO,H2S, LEL Support automatically shut down

4 in 1 AS8900 Multi Gas Monitor is Handheld Gas Detector used to detect combustible, flammable and toxic gases, and oxygen depletion. AS8900 Gas Analyzer with Sound Light Alarm. OBD2Store.com 4 in 1 AS8900 Multi Gas Monitor AS8900 Gas Analyzer for detect O2, CO,H2S, LEL Support automatically shut down.

Smart Sensor AS8900 Multi Gas Monitor 4 in 1 Handheld Gas Detector AS8900 Gas Analyzer



OBD2Store.com 4 in 1 AS8900 Multi Gas Monitor Description:
Smart  Sensor gas detector is a device that detects the presence of gases in an area, often as part of a safety system. This type of equipment is used to detect a gas leak and interface with a control system so a process can be automatically shut down. A gas detector can sound an alarm to operators in the area where the leak is occurring, giving them the opportunity to leave. This type of device is important because there are many gases that can be harmful to organic life.
Gas detectors can be used to detect combustible, flammable and toxic gases, and oxygen depletion, etc. This type of device is widely used in industry and can be found in locations, such as on oil rigs, to monitor manufacture processes and emerging technologies such as photovoltaic. They may also be used in firefighting.
While many of the standard gas detector units were originally fabricated to detect one gas, modern multifunctional or multi-gas devices are capable of detecting several gases at once. Some detectors may be utilized as individual units to monitor small workspace areas, or units can be combined or linked together to create a protection system.

OBD2Store.com AS8900 Gas Analyzer Features:

1. Portable monitor for detect O2, CO,H2S, LEL.
2. Respond quickly, detect precisely, sound,light,vibration three types alarms indication.
3. With portable plastic case, built-in sponge, no need to worry damage in the delivery.
4. USB powered, convenient to use.
5. Large LCD screen display, can read in dark.
6. This multifunctional rechargeable detector can test for combustible gas, oxygen, carbon monoxide, hydrogen sulfide at the same time.
7. With a large LCD screen display the measured results, you can get 4 gases concentration at a glance.
8. This multigas monitor has sound and light vibration alarm, you can set audio alarm decibel that can give you a obvious prompt.
9. Adopting advanced sensor, which gives a quick and accurate measurement.
10. Portable and handheld, easy to operate and carry. Widely used in shipping, mining, oil exploitation, chemical, gas pipeline, tunnel construction, coal, metallurgy, paper, fire, municipal, textile and other industries.

OBD2Store.com Smart Sensor AS8900 Multi Gas Monitor Specification:

Model	ST8900	AS8900
Color	Orange	Yellow
Material	ABS plastic	ABS Plastic
Power Supply	3.7V li-battey(Bulit-in)	3.7V li-battery(Built-in)
Operation Temperature	-10°C-50°C	-10°C-50°C
Operation Humidity	15%-95%RH	15%-95%RH
low/High alarm/alarm setting	Yes	Yes
Gas Type	O2/CO2/H2S/Combustible Gas	O2/CO2/H2S/Combustible Gas
Battery working time	6 hours(no alarm)	6 hours(no alarm)
Warm up time	<20 seconds	<20 seconds
Resolution	CO: 1ppm, H2S: 1ppm, O2: 0.1%VOL, LEL: 1%LEL	CO: 1ppm, H2S: 1ppm, O2: 0.1%VOL, LEL: 1%LEL
Maximum open circult voltage	≤4.2V	≤4.2V
Package size	26*21*7cm	26*21*7cm
Pcakage Contents	1*Multi-Gas meter  1*Instruction manual  1*Charging adapter  1*USB cable  1*Calibration certificate	1*Multi-Gas meter  1*Instruction manual  1*Charging adapter  1*USB cable  1*Calibration certificate

Sensor specification
Gas	Range	Resolution	T90
Oxygen (O2)	0~30%	0.1%	10sec
Combustile (LEL)	0~100%LEL	0.1%	35sec
Carbon Monoxide (CO)	0~999ppm	1ppm	50sec
Hyrogen Sulfide (H2S)	0~500ppm	1ppm	30sec

The effect of oxygen-deficient and oxygen-enriched atmospheres
The concentration of oxygen(%)		Symptoms (atmospheric pressure)
100%		Deadly, 6 minutes(Absolutely airtight environment, such as hyperbaric oxygen chamber
50%		Deadly, can be cured after 45 minutes treatment. (Absolutely airtight environment, such as hyperbaric oxygen chamber)
>23.5%		Rich oxygen
20.9%		Normal
19.5%		Minimum
15~19%		Reduce efficiency, and lead to problems of head,lung and circulation system
10~12%		Shortness of breath, loss of judgment, purple lips
8~10%		governance loss, syncope, unconscious, pale, nausea and vomiting
6~8%		8 minutes, blood pressure, weak heartbeat,mouth breathing, quickly stopped breathing
4~6%		40 seconds, convulsions, respiratory arrest, death
Harm of carbon monoxide
Content of carbon monoxide in Air		Suction time and showed symptoms of poisoning
50ppm		Maximum
200ppm		2~3 hours , a slight headache, dizziness, nausea
400ppm		2hours, forehead pain, life risk after 3hours
800ppm		Headache, nausea within 45minutes,death within 2~3hours
1600ppm		Headache, nausea within 20 minutes ,death within 1 hour
The concentration of Hydrogen and symptoms of poisoning
Range			Symptoms of poisoning
Unit: ppm		Unit: mg/m3
0.025~0.1		0.035~0.14	Olfactory sensation
50~100		70~140	Slight symptoms of poisoning within 1~2 hours
100~150		140~210	Olfactory nerve paralysis,obvious poisoning symptoms
200~250		210~350	Can afford 0.5~1 hour, but sequela
200~350		350~490	Poisoning in 6~8 minutes,death within 4~8 hours
350~500		490~700	Seriously poisoned within 0.5~1hour,death within 1~4 hours
500~600		700~835	Seriously poisoned within 1minute,death within 0.5~4 hours
600~700		835~980	Death within 2~15 minutes
700~1000		980~1400	Imediately die
Commonly used flammable gas explosion limit Table
Name		Chemical for mula	The explosion limit in air (V%)
			Upper limit LEL	Lower limit LEL
Methane		CH4	5	15
Ethane		C2H6	3	15.5
Propane		C3H8	2.1	9.5
Butane		C4H10	1.9	8.5
Gasoline(Liquid)		C4-C12	1.1	5.9
Kerosene(Liquid)		C10-C16	0.6	5
City gas			4
liquefied petroleum gas			1	12
Turpentine(Liquid)		C10-C16	0.8

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