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EiBEST Carbon Monoxide Detector: Continuous PPM Readings and Loud Alarm

Carbon Monoxide Detector, Carbon Monoxide Alarm, Detector with LED Display (PPM Value Visible at All Times) and 85 dB Audible and Visual Alarm.
4.6
[LCD Real-Time Display]  Clear PPM readings on LCD for instant CO level awareness.
[Loud Audible Alarm]  85dB buzzer with flashing red LED alerts you at dangerous CO levels.
[High-Precision Sensor]  Electrochemical sensor delivers fast, accurate detection with EN50291 certification.
[Battery-Powered Convenience]  Runs on 3 AAA batteries, auto-starts with 30s countdown and long standby.
[Easy Self-Test]  Double-press self-test and battery indicator enable simple maintenance and timely replacement.
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Home carbon monoxide detection that shows continuous PPM readings on an LCD and sounds a loud alarm when hazardous levels occur, the EiBEST Carbon Monoxide Detector. Reassurance for homeowners, caravan users and anyone who needs clear, instant alerts. Will the compact, battery-powered design suit your safety needs?

⚡ At a Glance
  • Alarm Performance: High-pitched 85 dB buzzer with flashing red LED, activates at 100 ppm and includes a manual mute function
  • Best for: Homeowners, landlords, caravan and RV users who need clear, real-time CO awareness
  • Not ideal for: Locations requiring hardwired mains-powered, permanently installed alarm systems

Compact carbon monoxide alarm with continuous LCD PPM readout and audible visual alerts. Powered by three AAA batteries with a front test button and EN50291 certification.


Continuous concentration monitoring - with an always-visible LCD PPM display

Liquid crystal display shows numeric parts-per-million values continuously, and the screen value remains lit for easy reading. A brief 30 second countdown occurs after battery insertion before entering normal monitoring.

Minute-by-minute readings make it easier to spot gradual rises in CO levels and react earlier. No need to rely solely on occasional checks.

Immediate, attention-grabbing alerts - thanks to a high-pitched 85 dB buzzer and flashing LED

Alarm triggers automatically when concentration reaches 100 ppm, combining an audible 85 dB signal with a red LED flash. A short press of the front button can mute the sound temporarily during an alarm.

Loud, high-frequency alerts cut through background noise to draw attention quickly. Visual flashing helps when sound alone might be missed.

Flexible placement and simple checks - with battery power and front test function

Powered by three AAA batteries, the unit starts automatically after battery insertion and supports standing, lying or wall-mounted positions. The front test button performs a quick self-inspection and absence of a screen value indicates battery exhaustion.

Suitable for kitchens, garages, bedrooms, caravans and campsites where mains power is unavailable. Easy front-button testing keeps maintenance straightforward.

✨ The 4 Key Reasons for EiBEST Carbon Monoxide Detector
  1. EN50291 Certification – Confirms compliance with recognised safety standards for CO alarms
  2. Electrochemical Sensor – Rapid, specific detection reduces false alarms from other gases
  3. Portable, wall-mountable design – Move between home, garage, RV or campsite with minimal fuss
  4. Front test button – Perform quick audible and visual checks in seconds
📋 Technical Details at a Glance
  • Category: Home carbon monoxide detector
  • Display: LCD showing continuous PPM values
  • Sensor Type: High-precision electrochemical sensor
  • Alarm: 85 dB high-pitched buzzer with flashing red LED
  • Activation Threshold: Alarm activates at 100 ppm
❓ Frequently Asked Questions

Q: How loud is the alarm and when does it sound?

A: The alarm produces an 85 dB high-pitched sound and the buzzer triggers when carbon monoxide concentration reaches 100 ppm, accompanied by a flashing red LED.

Q: How is the unit powered and how long will batteries last?

A: Power comes from three AAA batteries, the detector automatically starts with a 30 second countdown, and standby can last up to around 10 months, though alarms and flashes reduce battery life faster.

Q: Can the display be read at any time?

A: The LCD shows the PPM value continuously, with the screen value kept visible so users can check concentration at any moment.

🏆 Our Verdict

Suitable for homeowners, caravan owners and anyone wanting portable, easy-to-read carbon monoxide monitoring. Continuous numeric PPM readout combined with an 85 dB alarm and EN50291 certification makes for clear, reliable early warning. While long-term value depends on ongoing battery replacement, the straightforward maintenance and portable design make it a sensible safety addition for many settings.