SMSRECEIVE 4-in-1 Gas & Carbon Monoxide Detector Plug-in — Dual CO & Gas Sensor with Temperature & Humidity

All-in-One Safety in a Plug-in Design

The SMSRECEIVE 4-in-1 Gas & Carbon Monoxide Detector is built to be an unobtrusive ally in your living spaces. This plug-in unit provides real-time monitoring of carbon monoxide, natural gas, as well as ambient temperature and humidity, all displayed on a large HD LCD screen. You can tailor the experience with adjustable screen brightness and a convenient °C/°F unit switch, making it suitable for bedrooms, living rooms, and small apartments.

Clear alerts you can rely on — the device uses a dual audio-visual system to signal when gas or CO levels hit preset thresholds. Distinct color indicators light up to reflect different conditions (green, yellow, orange, red), while a powerful 85 dB alarm can accompany gas readings beyond 3000 PPM. Real-time CO concentration appears on the screen, giving you an at-a-glance sense of the environment without deciphering complex readings.

What makes it a practical 4-in-1

• Gas and CO sensing integrated into one compact unit, reducing clutter and simplifying placement decisions.
• Color-coded indicators provide immediate, at-a-glance status in dim lighting or crowded rooms.
• Large HD LCD display presents CO in PPM, gas concentration, temperature, and humidity for quick interpretation.
• Customizable display brightness and unit conversion ensure comfortable viewing day or night.

Placement, setup, and daily use

The detector is designed for plug-in use into standard outlets, supporting 100V–240V AC power. This makes it a versatile companion for homes, RVs, and apartments where a wall outlet is readily accessible. After you plug it in, allow up to 180 seconds for initialization and to begin monitoring in real time. Before first use, simply remove the protective film for optimal sensor exposure.

Smart features that adapt to your space — the combination of environmental readings and alerting helps you observe how your space behaves over time, from a chilly morning to a warm afternoon. The temperature and humidity readings can inform everyday choices, such as adjusting ventilation or planning a safe layout for family comfort.

Ideal use scenarios

• Bedrooms where quieter nights and early warnings matter.
• Living rooms and common areas for shared safety monitoring.
• RVs or compact living spaces where a single, reliable detector covers multiple risks.

Note: This device is designed to offer informative readings and alerts to support informed decisions. It does not replace professional safety equipment or emergency services where required. For best results, install in a central location away from direct heat sources, ensure ventilation, and periodically test the alarm indicators according to the user guide.