TOMTOP JMS SMART SENSOR 4-in-1 Portable Gas Monitor: Rechargeable battery
Meet the 4-in-1 Portable Gas Monitor—your go-to gadget for sniffing out trouble before it sniffs you out. This little powerhouse doesn’t just sit around; it’s on constant lookout for H₂S, O₂, CO, and LEL, making sure the air you’re breathing won’t turn your day into an unexpected adventure. And guess what? It’s got a rechargeable battery that just won’t quit (unlike your phone by midday). Plus, its portable design means you can take it anywhere—because safety shouldn’t be left at the office. Whether you’re in the thick of industrial work, dodging hazards on a construction site, or saving the day in emergency response, this monitor’s got your back with spot-on readings. Because, let’s face it, surprises are great for birthdays, not so much for gas levels.
- Multi-gas detection
- Portable design
- H₂S, O₂, CO, LEL detection
- Rechargeable battery
General specs
- Brand: TOMTOP JMS
- Model: SMART SENSOR
- Seller: Joom
- Detection Gases: H₂S, O₂, CO, LEL
- Power Source: Rechargeable battery
- Portability: Portable
- First listed by seller: 5/23/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
TOMTOP JMS SMART SENSOR Rechargeable battery
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TOMTOP JMS AS8900 Yellow Portable multi-gas monitor
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TOMTOP JMS 0100PPM Black Digital gas tester
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Digital Portable Oxygen Gas Detector Portable design
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Kkmoon SMART SENSOR Red Detects combustible gases
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Portable Carbon Monoxide Meter High-precision CO detection
|
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| Brand | TOMTOP JMS | TOMTOP JMS | TOMTOP JMS | TOMTOP JMS | Kkmoon | Koogeelife |
| Model | SMART SENSOR | AS8900 | 0100PPM | SMART SENSOR | ||
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| Rating |
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| Price | $99.55 | $284.81 | $218.06 | $166.74 | $34.29 | $47.76 |
| Seller | Joom | Joom | Joom | Joom | Joom | Joom |
| Update | August 29, 2025 | August 29, 2025 | August 29, 2025 | August 29, 2025 | August 29, 2025 | August 29, 2025 |
4-in-1 Portable Gas Monitor
Jeanne V.
Toulouse
June 3, 2025
I bought this mostly for checking air quality in my garage while working on my car, and it's been helpful. I used it a few times and it gave clear alerts when something was off. The build feels solid, and it's simple to use with just a button press. I'd recommend it for anyone needing a basic monitor without fuss.
- Pros: It detects multiple gases accurately which is great for peace of mind, the battery lasts a long time without needing a charge, and its small size makes it easy to carry around in my bag or car.
- Cons: It might be too sensitive in some situations, and the readings can be a bit confusing for someone not used to this kind of device most likely.