2 Packs Combination Natural-Gas and Carbon-Monoxide-Detector,Koabbit 4-in-1 CO/LPG/LNG Explosive Gas Detector Alarm with Temperature(°F) & Humidity for Home,RV,Hotel,Apartment

Price: $69.99 - $62.99
(as of Feb 19, 2026 21:55:28 UTC – Details)

Product description

Combination Gas & Carbon Monoxide Detector

PC Reflective Lens Design

Large LCD Digital Display

4-in-1 Sensor Detect: carbon monoxide gas, combustible gas, temperature and humidity

Plug and Play Design

Easy to install, save installation time.

Imported 4-in-1 Sensor

High reliability, high sensitivity, high accuracy

Technical Specifications

Model KH158 Power Supply AC110-220V CO Detection Range 0-2000ppm Combustible Gas Range 0-10%LEL Fahrenheit Range 1-176℉ Humidity Rang 0-99% Warm-up Time 60S Real-time Screen Display PPM, %LEL,°F and Humidity Installation Method Plug in Alarm 85DB PC Reflective Lens Design Simple, generous, high display clarity

Attention:

1. After the product is plugged in, wait for 180 seconds and it will automatically turn on the normal working state, wait for 30 minutes and the product will enter the stable working state.

2. The product has a self-test button, after receiving the product, you can first plug in the self-test of the product status, that is, press the self-test button after the product alarm sounded, while the product on the green, red and yellow indicators will light up at the same time, check the alarm sound and the three colors of the indicator are normal. After the alarm stops, the product will automatically return to its normal working state, i.e. only the green indicator light is on.

3. The gas test concentration unit ranges from 0-10% LEL. When gas concentration reaches or exceeds 3% LEL, the display shows the concentration level. When gas concentration reaches or exceeds 5% LEL, an audible alarm sounds.

4. If detection remains unsuccessful, unplug the device and wipe it clean with a paper towel, as dust accumulation can also cause inaccurate readings.

5. Horizontal coverage radius: usually 5-10 meters (to the center of the alarm, open and unobstructed area). If there are walls, partitions and other obstructions in the space, the coverage area will be divided, need to be installed in each separate space.

Vertical coverage height: can only cover the same floor, can not effectively monitor across floors (such as the first floor alarm can not cover the second floor), different floors need to be installed separately.

Comparison of Combined Gas and Carbon Monoxide Detectors

4-in-1 Sensor

0-1000PPM, 0-10%LEL, 0-99RH%, 1-176°F

4-in-1 Sensor

0-1000PPM, 0-10%LEL, 0-99RH%, 1-176°F

AC-Plug-in Design

Easy to install, save installation time.

PC Reflective Lens Design

Clearer font, simple and generous appearance.

Burst Flash Design

Makes you more aware of the environment situation

9V Battery Backup Function

Automatically start when power outage occurs, won’t suffer from power outage.

【Koabbit Natural Gas & Carbon Monoxide Detector】Upgrade 4-in-1 sensor with large screen for real-time monitoring and display.
【4-in-1 Combination Sensor】Real-time monitoring of explosive gas and carbon monoxide gas concentration levels, along with temperature and humidity alerts.
【Digital Display & 85DB Alarm】When gas concentration reaches or exceeds 3% LEL, the display shows the concentration level. When gas concentration reaches or exceeds 5% LEL, an audible alarm sounds.
【4-in-1 Digital Display】Carbon monoxide (PPM), explosive gas (%LEL), temperature(°F) & humidity(RH%)
Koabbit Combination Natural gas & carbon monoxide detector is suitable for home, kitchen, hotel, apartment and etc.
Explosive gases include natural gas, LNG, LPG, etc.
Attention: open the package, the product is directly plugged into the power supply, count down 60 seconds, and then display a green light, indicating normal operation.
Brand:Koabbit