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Moisture Meter for wood cardboard Lumber in bd
Original price was: ৳ 8,500.00.৳ 5,500.00Current price is: ৳ 5,500.00.
AS8900 Multi Gas Monitor Handheld gas detector
৳ 50,000.00
✅ Model: AS8900
✅ Brand: Smart Sensor
✅ Origin: China
✅ Stock: In Stock
✅ Warranty: 1 Year
✅ Accessories: Available
✅ Discount: ❌ No Discount
✅ Delivery Charge: 100 BD Taka
Description
SMART SENSOR Multi-Gas Monitor AS8900
Multi Gas Monitor Gas leak detection methods became a concern after the effects of harmful gases on human health were discovered. Before modern electronic sensors, early detection methods relied on less precise detectors. Through the 19th and early 20th centuries, coal miners would bring canaries down to the tunnels with them as an early detection system against life-threatening gases such as carbon dioxide, carbon monoxide and methane. The canary, normally a very songful bird, would stop singing and eventually die if not removed from these gases, signaling the miners to exit the mine quickly.
Multi-Gas Monitor
The first gas detector in the industrial age was the flame safety lamp (or Davy lamp) was invented by Sir Humphry Davy (of England) in 1815 to detect the presence of methane (firedamp) in underground coal mines. The flame safety lamp consisted of an oil flame adjusted to a specific height in the fresh air. To prevent ignition with these lamps the flame was contained within a glass sleeve with a mesh flame arrestor. The flame height varied depending on the presence of methane (higher) or the lack of oxygen (lower). To this day, in certain parts of the world flame safety lamps are still in service.
| Brand | SMART SENSOR Multi-Gas Monitor | ||
| Color | Yellow | ||
| Material | ABS plastic | ||
| Gas Type | Oxygen / Carbon Monoxide / Hydrogen sulfide / Combustible Gas | ||
| Resolution | 0.1% / 1μmo/mol(ppm) / 1% | ||
| Measuring Principle | Electrochemical principle life for 2 years | ||
| Low / High Alarm / Alarm Setting | V | ||
| Alarm | Sound, Light Alarm. Adjustable Alarm values, Alarm sound up to 80 db. | ||
| Operating temperature | -10~50℃ (except LEL is 0 ~40℃ ) | ||
| Operating humidity | 15%-95%RH (Standard) | ||
| Power | 3.7V li-battery (Built-in) | ||
| Battery working runtime: | 8-10 hours. And 4-6 hours work with AS8930 sampling pump. (work in room temperature and no alarm conditions.) | ||
| Product Net Weight / Size | 200g / 120.2*64.5*38.3mm | ||
| Packing | Gift Box | ||
| Packing Contents | AS8900 4 in 1 muilt gases monitor User manual Carrying brouch 7V rechargable lithium battery Charging adaptor | ||
| 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 |
Handheld gas detector Oxygen O2 Hydrogen sulfide H2S Carbon Monoxide CO Combustible Gas 4 in 1
| The effect of oxygen-deficient and oxygen-enriched atmospheres | ||||
| The concentration of oxygen(%) | Symptoms (atmospheric pressure) | |||
| 100% | , 6 minutes(Absolutely airtight environment, such as hyperbaric oxygen chamber | |||
| 50% | 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 | ||
Multi-Gas gas analyzer
Reviews (2)
2 reviews for AS8900 Multi Gas Monitor Handheld gas detector
Return or Replacement Policy
Shipping Policy
Reguler Processing Time: All orders are processed within 1 business days. Orders are not shipped or delivered on weekends or holidays.
Urgent One Hour Delivery Avilable Only Dhka City
Outside Dhaka Cash On Delivery Not Available
Shipping Rates : Shipping charges for your order will be 200 BDT Under Weight 2Kg
Order Tracking: You will receive a Shipment Confirmation email once your order has shipped, containing your tracking number(s). The tracking number will be active within 24 hours.
Shipping Address: Please ensure all shipping information is correct. We are not responsible for incorrect addresses.
Customs, Duties, and Taxes: We are not responsible for any customs and taxes applied to your order. All fees imposed during or after shipping are the customer’s responsibility.
Return Policy
Return Conditions: To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
Return Process: To initiate a return, please contact our customer service team at [nscbd@hotmail.com] with your order number and reason for return. We will provide a return authorization and shipping label.
Refunds: Once we receive your item, we will inspect it and notify you of the status of your refund. If your return is approved, we will initiate a refund to your original method of payment. You will receive the credit within a certain amount of days, Shipping chrages must cut
Exchanges: If you need to exchange an item, please follow the return process and specify that you wish to exchange the item. We will process the exchange as soon as the returned item is received and inspected.
For any questions or concerns, please contact our customer service team at [nscbd.co@hotmail.com]. We are here to help!
Col (Retd) M. Anwarul Azim –
I have received the Multi-Gas Monitor Handheld gas detector. I have to tell you that I am impressed by your promptness and efficiency in handling everything. I look forward to using your services again whenever I need them.
Thank you. Keep up the good work.
Col (Retd) M. Anwarul Azim –
Thank you so much for the Multi-Gas Monitor Handheld gas detector. We just set it up and it works great. The oxygen-deficient and oxygen-enriched atmospheres work perfectly. I didn’t realize how easy it would be. I also want to thank you for the excellent manner in which you processed the order.