Digital readout from 0-999 PPM. High level memory display shows highest carbon monoxide reading since unit was last reset. Updated digital reading every 2-1/2 minutes. Powerful 85 decibel alarm. Test/retest button. No costly replacement parts. Never needs recalibration. Includes 9 volt battery. MFG #900-0076
Return
Items must be returned within 3 days . Refund will be given as Money back. Refund policy details:
