SHYEEH CDR-803: 2-in-1 Battery-Powered Smoke & Carbon Monoxide Detector with LCD Display

Smart safety in one compact unit

Meet the SHYEEH CDR-803, a battery-powered 2-in-1 detector that combines a sensitive photoelectric smoke sensor with an electrochemical carbon monoxide sensor. This streamlined design offers two critical alerts in a single device, helping you stay aware of both smoke and CO in your living spaces without extra clutter.

Two sensors, one reliable guardian

The built-in photoelectric smoke sensor responds to visible smoke quickly, while the electrochemical CO sensor monitors for carbon monoxide, a colorless and odorless threat. When either threshold is reached, the unit emits a clear alarm and an illuminating red LED to draw attention where you need it most.

• Smoke alarms promptly when moisture or particles indicate potential fire risk.
• CO sensing uses a precise electrochemical strategy for accurate readings in real time.

Room coverage and alert thresholds

Designed for typical home spaces, it monitors effectively within 215–323 ft². If carbon monoxide levels exceed 50 ppm or smoke concentrations rise beyond 1%/ft OBS, you will hear an 85 dB alarm within minutes, helping you respond promptly.

• Ideal for bedrooms, living rooms, and hallways where alert timing matters.
• Clear audible and visual alerts help you react quickly, even while you sleep.

Real-time visibility at a glance

The LCD display provides 24-hour real-time readings of CO and smoke, so you can monitor changes without extra gear. When the battery runs low, a simple “Lb” indicator on the screen reminds you to replace power sources, maintaining continuous protection.

• Always know current air readings without opening apps or tools.
• Battery status is visible, supporting proactive maintenance.

Simple installation and dependable power

Install on wall or ceiling using the included screws. Powered by a standard 9V battery (not included), the SHYEEH CDR-803 operates independently of home power, keeping monitoring active during outages and immediately usable after installation.

• Wall or ceiling mounting for flexible placement in kitchens, hallways, and bedrooms.
• No wiring required—quick setup and reliable, ongoing monitoring.

Practical daily safety you can rely on

In real life, this 2-in-1 detector helps reduce clutter while maintaining critical safety coverage. It’s a practical tool for any home, offering thoughtful warnings and a straightforward interface that supports quick understanding during moments of concern.

Key benefits at a glance

• 2-in-1 smoke and CO detection in one compact device
• 85 dB alarm, 50 ppm CO threshold, and 1%/ft smoke trigger
• Room-appropriate coverage with real-time LCD readings
• Battery-powered for outage resilience and simple setup