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(40) 40 total reviews
FABISENSE 253B 4-in-1 Plug-in CO & Gas Detector | Reverse-Compatible | CO, Gas, Temp & Humidity | Dual Power
FABISENSE 253B 4-in-1 Plug-in CO & Gas Detector | Reverse-Compatible | CO, Gas, Temp & Humidity | Dual Power
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FABISENSE 4-in-1 Plug-in CO & Gas Detector with Reverse-Compatible Socket
The FABISENSE 253-B delivers 4-in-1 simultaneous monitoring of carbon monoxide, combustible gas, temperature, and humidity, all in a compact plug-in form factor. Its unique reverse-compatible socket design ensures it fits both standard and reverse-polarity outlets without any adapter, making it ideal for homes, RVs, and older properties.
✅ Key Features
- CO Monitoring (0–1000 ppm): Electrochemical sensor continuously tracks CO levels with instant alarm response when thresholds are exceeded.
- Combustible Gas Detection: Detects LPG, natural gas, and methane leaks early, before concentrations reach dangerous levels.
- Dual-Parameter Temp & Humidity: Real-time temperature and humidity readout for complete indoor environment awareness.
- Reverse-Compatible Socket: Fits both standard and reverse-polarity outlets no adapter needed. Perfect for older homes and RVs.
- Dual-Mode Power Design: Operates on standard socket power with backup power compatibility for uninterrupted monitoring.
- Flame-Retardant Housing: Fire-resistant casing for enhanced safety and long-term durability.
- 85dB+ Audible Alarm: Loud alarm + visual indicators activate immediately when CO or gas exceeds safe limits.
- Plug-and-Play: No tools, no wiring plug in and monitoring starts instantly.
⚙️ Technical Specifications
- CO Detection Range: 0–1000 ppm
- Gas Detection: LPG, Natural Gas, Methane
- Monitoring: CO + Gas + Temperature + Humidity
- Socket: Reverse-compatible plug
- Power: AC 110–220V plug-in (dual-mode)
- Housing: Flame-retardant material
- Alarm Level: ≥85 dB
- Certifications: CE / RoHS
📦 What's in the Box
- 1× FABISENSE 253-B 4-in-1 CO & Gas Detector
- 1× User Manual
- 1× Warranty Card
FABISENSE Sense the Air. Stay Safe.




- 5 stars: 40 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
I wanted protection from both CO and gas leaks. This detector gives me extra confidence while cooking.
I installed this in my bedroom and it gives me extra peace of mind. The large display makes it easy to check the CO level anytime.
Having CO and combustible gas detection in one device is very convenient. One product covers multiple risks.
My old detector only showed an alarm sound. This one shows actual readings, temperature, and humidity, which is much more useful.
The plug-in design makes installation simple, and the display is easy to understand.
The plug-in design makes installation very simple. I just plugged it in and started monitoring.
I use this in my RV because it can monitor both carbon monoxide and gas. It gives me peace of mind while traveling.
The IPS screen is bright and clear. I can see the information easily even from across the room.
The IPS screen is one of my favorite features. I can quickly check readings without getting close.
I bought this after upgrading my home safety equipment. It is a great addition alongside smoke detectors.
I installed this near my kitchen area. Knowing it can detect combustible gas and CO is reassuring.
I use this in my garage where carbon monoxide can be a concern. The alarm feature gives me extra confidence.
Instead of buying multiple detectors, this combines important safety functions into one device.
No complicated installation. Plug it in and it starts monitoring immediately.
Setup took less than a minute. Just plug it in and it starts working.
Having a real-time CO reading helps me feel safer at home, especially at night.
I use this near appliances that use gas. It gives me additional safety awareness.
The design looks much better than traditional alarms. The screen and information display feel more advanced.
The display is clear and the alarm function works well. It feels like a quality product.
I like that it provides more environmental information instead of only detecting CO.
I wanted something that could monitor both CO and gas. This works well for my garage area.
This is perfect for my apartment. Small size, easy installation, and a clear screen.
Safety is important with gas appliances, and this detector gives me confidence.
I wanted something simple but informative. This detector does exactly what I needed.
The product looks clean and provides more information than basic alarms.
The build feels solid and the display is easy to understand.
I installed this in a rental unit to improve safety. The plug-in design makes it convenient.
Being able to see CO levels instead of just waiting for an alarm is a big improvement.
No complicated settings. The display immediately shows the information I need.
I placed one near my living area and feel much more comfortable knowing it is monitoring continuously.
Small enough for travel but provides important CO and gas monitoring.
The plug-in design saves time and avoids complicated mounting.
I like the extra environmental readings along with the safety monitoring.