HAKINAKU 3-in-1 Portable CO Detector with Temp & Humidity Sensor

Compact yet capable 3-in-1 monitoring

Meet the HAKINAKU 3-in-1 Portable CO Detector, a palm-sized companion that tracks carbon monoxide, ambient humidity, and temperature. Its sleek 3.5 x 2.2 x 0.66 inch body fits comfortably in your hand, while an HD display presents real‑time readings clearly for quick awareness.

All-in-one sensing with clear readings

This device combines three sensors in one compact unit. CO is measurable from 0 to 1000 ppm, humidity from 0% to 95% RH, and temperature from -4 to 140 °F. The high-contrast screen makes each value easy to read at a glance, even in dim environments.

• Real‑time CO levels, humidity, and temperature on a single display
• Integrated environmental data helps you understand your surroundings
• Upgraded electrochemical sensor enhances reliability and longevity

Smart alarm behavior that adapts to readings

Alarm patterns respond to detected CO levels. Alerts escalate as readings rise: lower ranges trigger multiple alerts within minutes, mid ranges increase frequency, and higher levels shift toward continuous notification. This helps you stay informed as conditions change.

Power smart for longer use

Powered by a 1000 mAh battery, the detector can run a long time, especially in power‑saving mode. The screen automatically sleeps after 30 seconds, while monitoring continues in the background, extending operational time without sacrificing awareness.

Portable, versatile placement for everyday life

Designed for on‑the‑go use, it includes a lanyard, a kickstand, and a screw hole for wall mounting. Place it on a desk, hang it in a tent, or affix it to a wall or shelf—wherever you need a quick environmental read.

How to test readings safely

Safe testing can be done with a small smoke source such as burning paper to observe readings on the HD display. For meaningful results, avoid testing with distant or very low emission sources.

What you get and where it shines

Perfect for indoor spaces like kitchens and bedrooms and also suitable for outdoor adventures such as camping, RV trips, boats, or hotel stays. Its compact form minimizes clutter while delivering essential environmental data.

Key specs at a glance

• 3-in-1 CO, humidity, and temperature monitoring
• CO range: 0–1000 ppm; Humidity: 0–95% RH; Temp: -4 to 140 °F
• HD display with real-time readings
• 1000 mAh battery with power-saving mode