Promtex 4-in-1 Portable CO CO2 Detector | Real-Time Air Quality Monitor

Real-time air insight wherever you go

Meet the Promtex 4-in-1 Portable CO CO2 Detector, a compact companion designed to monitor four critical air metrics in real time: CO, CO2, temperature, and humidity. Its high-precision sensor collection covers CO from 0 to 1000 PPM and CO2 from 400 to 5000 PPM, with a temperature range of 14–122 F and humidity from 0 to 95% RH. The readings update instantly, giving you a clear snapshot of the environment.

Key capabilities

• CO: 0–1000 PPM
• CO2: 400–5000 PPM
• Temp: 14–122 F / -10–50 C
• Humidity: 0–95% RH

Designed for real-world use, the device helps you understand air conditions in a kitchen, a bedroom, a hotel room, or a camper van. You can rely on the live data as you move between spaces, during meals, or after activities that stir the air.

Power that travels with you

A robust 1000mAh lithium battery powers the unit and supports Type-C fast charging. When fully charged, you can expect up to 140 hours of continuous operation—enough for extended trips, weekends away, or long flights where a quick glance matters.

• 1000mAh lithium battery
• Type-C fast charging
• Up to 140 hours of operation
• Travel-friendly compact size

What makes it easy to carry

Compact and lightweight, the monitor measures about 7.6 x 6 x 3 cm (2.75 x 2.99 x 1.18 in). Use the included lanyard for hands-free carrying, or mount it via the magnetic back on metal surfaces. The stand option keeps it stable on a table or a shelf.

Clear alerts you can act on

The bright LCD display pairs with a loud alarm to signal safety status across three segments: green (safe), yellow (caution), and red (alarm). You can tailor the warning range to fit your space, with a default of 50 and adjustable span from 25 to 125.

Ready for daily life—and beyond

Whether you’re at home, in an RV, camping, or traveling, Promtex emphasizes portability without sacrificing clarity. The device is designed to be a practical tool for everyday checks, not a medical device, and it is supported by a customer service policy that stands behind the product.

What’s included and support

3-year service and lifetime technical support accompany your purchase. If you ever have questions, reach out via Amazon Q&A and expect a response within 12 hours.