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Description
WINTACT WT8811 Compoud Gas Monitor LCD Display Rechargeable Multifunction 4 in1 Combustible O2 H2S CO Gas Sensor Sound-light Vibration AlarmFeatures 1. Color screen display, user friendly interface. 2. Bilingual choices: Chinese English. 3. Three alarm forms: sound light vibration . 4. Data recording and review function, continuously record 5. 120,000 data logging. 6. Charging function. Specification Compound Gas Monitor Range Measuring item and Unit 1. Combustible gas LEL %LEL 2. Oxygen O2 %VOL 3. Hydrogen sulfide H2S mol mol 4. Carbon Monoxide CO mol mol Range: 1. Combustible gas LEL:
Features1.Color-screen display, user-friendly interface.
2.Bilingual choices:Chinese/English.
3.Three alarm forms:sound/light/vibration .
4.Data recording and review function, continuously record
5.120,000 data logging.
6.Charging function.
Specification
Compound Gas Monitor Range
Measuring item and Unit
1.Combustible gas LEL %LEL
2.Oxygen O2 %VOL
3.Hydrogen sulfide H2S μmol/mol
4.Carbon Monoxide CO μmol/mol
Range:
1.Combustible gas LEL: 0~100
2.Oxygen O2 : 0~30
3.Hydrogen sulfide H2S:0~100
4.Carbon Monoxide CO :0~1000
Resolution
1.Combustible gas LEL: 0.1
2.Oxygen O2 : 0.1
3.Hydrogen sulfide H2S:0.1
4.Carbon Monoxide CO :1
Accuracy: When the measuring range is(0~50)mol/mol,maximum allowable error is:5mol/mol.
When the measuring range is(50~1000)mol/mol,maximum allowable error is:10%
Indication model:LCD display real-time date and system state,LED,sound,vibration indication alarm
Response Time(90%): Less than 30 seconds
Alarm: Sound and light vibration alarm
Alarm Point: Adjustable
Working Voltage: DC3.7V, 1800mAh
Battery Model: LP103450-1800mAh rechargeable lithium battery
Explosion-proof Certificate NO.: CNEx 18.5122
Explosion-proof Mark: Ex ib IIB T3 Gb
Operating Conditions: -20～50℃ / -4～122℉, < 95%
Storage Conditions: -10～55℃ / 14～122℉, < 85%
charging time:6-8h
standby time:more than 8h on end (slightly change with working state)
Item Size: 71 * 153* 49mm
Package included
1 * Carbon Monoxide Monitor
1 * Plastic Pipe
1 * USB Cable
1 * Gas Calibration Cover
1 * Storage Box
1 * User Manual
Specification:
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| Package Weight |
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Best aggressive chew toy
Color: Blue
These are the best toys for my dog he's 15 mos an loves to bite chew an these are the best toys for him. Lasts long also. Might get a second set but different colors.
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Reviewed in the United States on April 28, 2026
★★★★★ 4
Hard plastic
Color: Purple
This is a hard plastic like material after about 4 days my two were over it. But the first couple of days they loved it despite the material
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Reviewed in the United States on March 10, 2026
★★★★★ 5
They are very hard to tear up! Definetly for aggressive chewers!!!
Color: Blue
Dogs love them!!! My 70lb bernese mountain/hound dog mix loves them!!! Taking her long time to chew through them!!! Unlike other chews which would have already been destroyed!!!!
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Reviewed in the United States on April 26, 2026
★★★★★ 3
Too hard
Color: Purple
I bought a couple of packs , not sure if it was same business. Both packs felt the same. They are very hard plastic. One of my dogs won't fool with it. Gonna leave them out to see
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Reviewed in the United States on June 2, 2026
★★★★★ 4
Durability
Color: Blue
My Princess loves playing and chewing on these. She alternates between all 3. It keeps her busy from chewing on my slippers. Very durable toys.
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Reviewed in the United States on May 2, 2026