
3. Super Easy To Use, Three Alarm Methonds - Gas detector is READY TO USE. If you want to use it to detect gases, what you only need to do is turning on it, it will start to work once you turning on it. The portable 4-in-1 gas detector(EX, CO,H2S,O2) with voice output. This portable voice type four-in-one gas detector has adjustable audio, visual, and vibration alarms alert when preset levels are reached. It can accurately measure the gas concentration with easy-to-read number shown on the display
4. Easy Carrying Around & Wide Application- Gas detector came with a super nice padded case. It has compact size and unique clip design which make it be convenient for user to carry around. This gas detector can be widely used in home, petroleum, metallurgy, agriculture, chemical industry, refining, fire prevention, effectively predicting, etc. as to ensure the safety of you. With this detector your family, friends or workmates are assured safety, if living or working in a polluted area
6. High Quality, Lower Error- Gas detector is made of high strength ABS and Anti-slip grip rubber. Waterproof, dust-proof and explosion-proof, Detection error better than ≤±5% F.S. and response time: T<30s. It has Zero and span calibration options. Its high density big digital LCD screen can display real time gas concentration value. Battery included -- 4.2V rechargeable lithium battery powered and included in the package, long capacity 1800mAh battery for long continuous working time
7. 100% Satisfied Warranty - If you have any issues or are not satisfied with our multi gas detector, please contact with us by email, we will give you well-done solution, REFUND or REPLACE a new one within 90 DAYS. Our 24 hours on-line customer services can help to answer any question about this gas detector in any time.
- Display Error: ≤±5% FS
- Response Time: <30s
- Working Environment: -20°C~50°C, <95%RH (no dew)
- Power Source: DC3.7V Li-on battery, 1800mAh
- Protection level: Ip65
- Gas Sensor Life: 2 years
- Protection Grade: IP65
- Weight: 230g (with battery)
- Dimensions: 140mm × 73mm × 32mm (L × W × H)
- Weight: 215g
- Charging time: 4h-6h Standby time, Continuous use for more than 10 hours at full charge
- Indication mode: LCD display real-time data and system status, lighting, vibration and live voice recording (Chinese and English) tips
- Applicable Occasions and Crowds:
Robust for industrial use for utility workers, refinery workers, firefighters, maintenance engineers, those who spend time in sewers and waterworks, underground storage tanks, oil rigs, in tanks and silos in the maritime industry, and many others who need personal protective equipment






1. 60 days free store warranty:
All our product offer 60 days free warranty time,during this period,if our item got quality problem.We will exchange or replace item for customers without any fee.
2. 2 year store warranty:
All our product got 1 year store warranty,after 60 days free store warranty.During this time,if our item got quality problem,we can offer exchange or repair.But buyer need to pay the ship back fee when we pay the re-ship fee.
3. 30 week Return:
All our item offer 7 days return peroid,defective or non-defective.Return must include all original package and accesorries,item must in good condition.
Defective item: customers first pay the shipping fee and ship back the item,we check and confirm,then we will offer full refund and the ship back fee.
Non-defective item: 30 days Unconditional return,buyer need to pay the ship back fee,and we will offer refund your payment,but not include shipping fee.
4. Please do contact us first by ebay message before any return.


On Jun 24, 2025 at 10:05:15 PDT, seller added the following information: