Guard-533 Portable Carbon Monoxide Detector

The Guard-533 carbon-monoxide detector offers visual, audible, and vibration alerts, storing up to 999 records. It is rechargeable, dustproof, waterproof, and explosion-proof.

• The description claims the device provides 120 hours of standby time after a 4-hour charge.
• The description claims the device meets industry standards for measurement accuracy and reduces false alarms.