3Packs LCD RoHs Poisoning Sensor Detector Home Alarm Washable Air Filter (White, One Size)
UNIQUE DESIGN: Product Dimensions: 4 X 4 X 1.5 Inch, Portable And Easy Installation. Precise Electro-optical Sensor, High Consistency And Stability, Move, Or In The Same Place For That. Loud Enough And Sounds Good.
AND VISIBLE: Our Family From CO, With 3 Digits LCD Displayer Is Optional, 'Err' Indicates The Unit Malfunctioning. 'Lb' Indicates It Low Battery & Need To Replace. '999' Indicates CO Level Over 999. ‘actual Concentration’ When Less Than 999, NOTE: LCD Not Lit When Less Than 30 .
ALARM WARNING: When A Dangerous Level Of Is Detected, The Red LED Will Flashes And A Loud Alarm Pattern Will Sound, Loud 85 Beep Warning Alarm With LED Flash While In The Alarm Mode For The Life-Saving
ENERGY-SAVING: Operated By 3 X 1.5V AA Batteries (not Included), The Alarm Sound Pattern Is 4 Beeps Every 5seconds For The First 4 Minutes. In 4 Minutes, It Will Change To 4 Beeps Ever Minute To The Battery
ALARM STANDARD: 50, Alert Within 60 To 90 Minutes; 100, Alert Within 10 To 40 Minutes; 300, Alert Within 3 Minutes
