Backlit LCD Display and simultaneously exhibits Dual Readings of CO and Max Hold, updated every second
Digital display|Test/reset button|1 second alarm and "gas" on display for gas detection|4 quick beeps for CO alarm
Includes the company's patented Nighthawk electrochemical CO sensor|Test/reset button
Digital display|Peak level button
Digital display|Test/reset button|1 second alarm and "gas" on display for gas detection|4 quick beeps for CO alarm