Operating Features

Your low-level CO monitor offers many features that set it apart from other products on the market.

Test/Reset Button Feature
This button will:

• test your horn and battery
• silence the loud 85dB horn during an alarm (only at levels below 70 ppm). See below
• when held down, the readout will display the peak level of CO recorded over the last 4 weeks
• reset the low-level CO monitor icons
• activate the monitor’s Bluetooth transmitter receiver so it can be registered and activated through your cell phone
• allow you to test the sensor by blowing smoke into the low-level CO monitor.

Dual Color LED

This LED will:

• flash green once every 60 seconds during normal operation
• flash red every 60 seconds during low-level, mid-level, and high-level alarm conditions.

Digital Display and Action Prompts

Digital Display
NSI’s unique digital readout displays the amount of CO in the area of the sensor, expressed in parts per million (ppm). Your low-level CO monitor is designed to display levels from 5 ppm to 999 ppm.

A level below 5 ppm will display 0 PPM and the word, “Monitoring.”

Low-Level Alert
This icon will appear and a loud, 85 dB alarm will sound a double beep every eight seconds when a low-level of CO (15 ppm – 34 ppm) has been continuously detected for 5 minutes. To silence the low-level CO monitor, press the Test/Reset button. If the CO level remains in this range for the next 5 minutes, the icon will reappear, and the horn will sound again.

If the low-level icon is visible, but the horn is not sounding, the low-level CO monitor has, in your absence, registered at least 15 ppm of CO for 5 minutes. The CO level has since returned to levels below 15 ppm, and the low-level CO monitor has stopped sounding. The icon remains on to alert you that the CO low-level CO monitor had sounded.

Continued low-level alarms are an indication that the potential of a high-level alarm exists. You should treat this alarm very seriously. Prolonged low levels of CO are believed to cause brain damage and heart disease, particularly in children, the elderly, and pregnant women. Call your NCI (National Comfort Institute) CO and combustion-certified professional and have the problem investigated and rectified immediately.

Mid-Level Alarm
If a mid-range level of CO, (between 35 ppm – 69 ppm) has been detected for 5 minutes this icon will appear and a loud, 85 dB alarm will sound four beeps every four seconds. Press the Test/Reset button to turn the mid-level icon off and silence the alarm for 5 minutes. If the CO level remains in this range during this 5 minutes, the alarm will again sound, and the icon will reappear.

Continued mid-level alarms are an indication that an unhealthy amount of CO is present. Open the doors and windows to ventilate. Turn off appliances where possible. We highly recommend that you exit the property leaving the doors and windows open. Phone your NCI-certified Professional on their emergency number; keep the number in a prominent place.

Crisis-Level Alarm
If a crisis level of CO, (70 ppm and above) has been detected (there is no delay, the alarm sounds  immediately when a level of 70 ppm or higher is detected), this icon will appear and a loud, 85 dB alarm will sound eight beeps every four seconds. This alarm cannot be silenced without fresh air exposure and levels below 70ppm.

Evacuate the building immediately. Do not take time to open windows or turn off equipment. Phone your emergency response call from next door or your cell phone. Phone your NCI-certified Professional on their emergency number.

Get medical help (Oxygen Therapy) immediately for anyone suffering from any symptoms or illnesses that can be attributed to carbon monoxide exposure (Do not drive to the hospital yourself). Do not use any combustion appliance until the source of the problem is identified and corrected.

If the high-level icon is visible but the horn is not sounding, the CO monitor has sensed a high level of CO in your absence. Immediately vacate the premises and seek professional help. Treat this as a serious warning. Call an NCI (National Comfort Institute) CO and combustion certified professional and have the problem investigated and rectified immediately.

Note: If the PPM reading exceeds 70 at any point, the alarm cannot be silenced until it senses fresh air for a certain period of time.

When your battery needs replacing, the Low Battery Icon will appear, the unit will chirp and the LED will flash red each minute for a minimum of two weeks before battery failure days. Replace the battery immediately! When there is no battery in place, the battery door will not close on the back of the unit to remind you to replace the battery.

If the readout displays “Err”, the unit has detected an error and will chirp, and the LED will flash red each minute indicating that your low-level CO monitor has failed. For service or replacement, contact the NCI certified professional who installed the NSI 6000 in your home.

Testing the Horn and Battery

Test the unit by pressing the Test/Reset button briefly to confirm that the low-level CO monitor is operating properly. The low-level CO monitor should sound as soon as the button is pressed, indicating that the horn is working, and the battery is providing power to the unit. Release the test/reset button to silence the horn. The horn and battery should be tested on a weekly basis.

Peak Level Reading Feature

The peak level reading is the highest level of CO recorded by the unit since the battery was last disconnected. To display the peak level reading, press and hold the test/reset button down with your thumb or finger. The horn will sound, and the low-level CO monitor will display the peak level reading stored in the memory until you release the button or for a maximum of 4 seconds. This feature is helpful to a technician servicing your home or possibly for yourself when returning home after a
period of time and discovering the high- or low-level icon displayed on the digital display.

Replacing the battery will cause the peak level reading to reset to 0. However, it is not recommended to pull the battery to stop your monitor from sounding an alarm.