Quindrel
Quindrel
AirSentinel

AirSentinel™portable co2 meter

$99.99

  • NDIR sensor reads CO2 in parts per million
  • Display shows CO2, temperature and humidity
  • Runs on two AA batteries, pre-installed
  • Carry strap included for moving between rooms

Color: Orange

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  • Set AirSentinel on a nightstand, desk or car dashboard. The NDIR sensor starts measuring CO2 in parts per million.
  • Read the display. It shows the current CO2 level, with temperature and humidity next to it.
  • Open a window or run a fan when you want to ventilate the space, and watch the number on the display change.
  • AirSentinel Portable CO2 Monitor (1x)
  • 2x AA Batteries (pre-installed)
  • Carry Strap
  • Quick-Start User Guide

We offer free shipping on orders over $150. Once your order is dispatched, the estimated delivery time is 5 to 12 business days depending on your location — tracking is emailed as soon as it ships.

Changed your mind? You can return your product within 90 days of delivery for a refund — see our Returns page for the full policy.

Sensor, Display, Power and Portability

NDIR CO2 Sensor

AirSentinel measures carbon dioxide with a non-dispersive infrared (NDIR) sensor. The reading appears as a CO2 concentration in parts per million on the display.

Live Readout

The display shows the current CO2 level so you can check a room at a glance. Temperature and humidity appear alongside the CO2 number on the same screen.

AirSentinel

AA Battery Power

The meter runs on two standard AA batteries, which come pre-installed. There is no charging cable to manage, so you can place it wherever you need a reading.

Portable Use

Its compact size and carry strap suit a bedroom, home office, car or hotel room. Set it on a flat surface such as a nightstand, desk or car dashboard.

Frequently Asked Questions

It uses an NDIR sensor, which measures carbon dioxide with infrared light. The meter reports the result as a CO2 concentration in parts per million on its display.

Put it on any flat surface, such as a nightstand, desk or car dashboard. The carry strap makes it easy to move between a bedroom, home office, car or hotel room.

Calibration steps are covered in the Quick-Start User Guide that comes in the box. Follow that guide for the procedure rather than guessing, since the steps depend on the meter's design.

It takes two standard AA batteries. A set is pre-installed, so the meter is ready to use when you unpack it. When they need replacing, swap in two new AA cells.

The display shows temperature and humidity alongside the CO2 reading in parts per million. All three values are visible together, so you can check them with one look at the meter.

No. AirSentinel runs on AA batteries, so it has no charging cable to connect. Place it where you want a reading and use the display.

Yes. It is a portable meter with a carry strap. Take it along to a hotel room, the car or an office and set it on a flat surface to read the display.

Take the meter out, place it on a nightstand, desk or dashboard, and read the display. Batteries are already installed. The Quick-Start User Guide explains the screen and the setup steps.

Yes. A portable co2 meter such as AirSentinel can sit on a nightstand or desk and show CO2 in parts per million using an NDIR sensor, along with temperature and humidity.

The AirSentinel portable co2 meter comes with two pre-installed AA batteries, a carry strap and a quick-start user guide, so it can be placed in a room right away.
AirSentinel

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AirSentinel: A Portable CO2 Meter for Home, Office and Car

AirSentinel is a portable co2 meter for checking indoor air in everyday spaces. It reads carbon dioxide in parts per million and also displays temperature and humidity on the same screen.

This portable carbon dioxide meter uses an NDIR CO2 sensor to measure CO2 concentration directly. It is used on a nightstand in a bedroom, on a desk in a home office, on a car dashboard or in a hotel room while traveling.

Power comes from two pre-installed AA batteries, so no charging cable is needed. A carry strap makes it easy to move from room to room or pack for a trip.

  • Live CO2 reading in ppm
  • Temperature and humidity display
  • 2 AA batteries pre-installed
  • Carry strap and quick-start user guide

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AirSentinel – Portable CO2 Meter, NDIR Sensor