The Second Generation Methane Gas Detection And Alarm Instrument Measuring Range Of 0-4.0% Methane Ch4 Gas Detector
Including single chip computer
Sensor failure alarm
sound、light、Vibration、lightAnd other alarm modes
High protection for harsh environment
Large screen highlightLEDChinese character display mode
Charging continuous working time is longer than15hour
With sensor automatic protection function
With time display and setting function
With battery voltage indication function
Optional large multi group charging rack
Optional portable instrument calibration device
Optional external suction pump series accessories
1.00~3.00%CH4 ±True value10%
Factory alarm point setting
The other detailed indexes are shown in the general technical specifications of the second series of single type gas detectors
General knowledge of gas measurement：
methaneIt's color、taste、Combustible gas。methaneWhat is the weight ratio to air0.54，It's about half lighter than air。methaneThe solubility is very small， stay20℃、0.1KPa hour，100Unit volume of water，It can only dissolve3A unit of volumemethane。meanwhilemethaneBurning produces a bright blue flame，baoLower explosive limit%(V/V)：5.3，baoExplosion limit%(V/V)：15。
Ship From Sourcing Place
Handling Day:1-3 Business Days, Arriving Day: 15-45 Business Days
COVID-19 | Shipping
As the world adjusts to the impact of the coronavirus (COVID-19), shipping is inevitably affected. Every country and region is facing shipping delays of various degrees. ECVV.us team will do our best to keep you updated and informed about your order during this time as new information becomes available.
Regions heavily affected by the pandemic will be subjected to possible delays. Thank you for your understanding and we apologize for any inconvenience this may cause you.
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1. When will I receive my order?
For Standard Shipping from Sourcing Place: Most items are usually shipping in 15-45 business days. We do recommend allowing up to 3 weeks for your order in peak times, such as a special offer or promotion.
If your order is backordered or not shipping for two or more business days, please feel free to contact us immediately at our Support Center: +86 755 82468418 and we will do everything we can to accommodate your request.
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4. About the Shipping fee?
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Request For The Returned Items.
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- Items received in original packaging and would not make any influence for second-sale.
- Custom items or designated sourced products
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- Product is slightly used or altered
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Return and Refund Process
Once your return is received and inspected by the fulfillment centers (usually within 3-5 working days of receipt), your refund will be processed and a credit will be automatically applied to your original method of payment within 15 working days.
ECVV Cancellation Instructions.
Due to the speed we fulfill your requests, we are unable to cancel orders for immediate shipment. If your order is backordered or not shipping for two or more business days, please feel free to contact us immediately at our Support Center: +86 755 82468418 and we will do everything we can to accommodate your request.
You can replace an item if your replacement meets certain criteria.
- Shipped to a delivery address within United States
- Shipped and sold by ECVV.US
- Not an Add-On item
- Not marked as a gift
- Wasn't purchased with a promotion (except for free shipping promotions).
Note: In most cases, you are required to return the original item received for a Replacement. You'll need to return the original item with the guide of ECVV.US Support Center to avoid being charged for both the original and replaced items.