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Qingping CO2 Monitor vs Temtop C1+: WiFi Logging or 70 Day Battery?

Two carbon dioxide monitors built around sensors from the same Swiss manufacturer, which removes the usual argument about sensor quality and leaves a clean comparison of how each device is meant to be used.

By the Akermin Editorial Team · 3 min read

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Short answer: take the Qingping if you want the readings off the device, logged, remotely visible and shareable, which suits offices, classrooms and anyone tracking ventilation over time. Take the Temtop C1+ if you want a large clear display and a monitor you charge a handful of times a year.

What Each Listing States

Item Qingping CO2 Monitor Temtop C1+
CO2 sensor Swiss-made Sensirion, NDIR High-precision Sensirion
Also measures Temperature, humidity Temperature, humidity
Stated ranges -20 to 50 C, 0 to 99.9 percent RH Not stated in the bullets
Display Colour indicator for CO2 level 3.3 inch LCD showing multiple parameters
Connectivity WiFi, Qingping IoT app and website, sharing Bluetooth LE app
Battery Long standby, can run on USB permanently 800 mAh, up to 70 days in eco mode

The Sensor Question Is Settled

In this category the first thing to establish is whether carbon dioxide is measured or estimated. Genuine NDIR and photoacoustic sensors measure the gas optically. Cheaper devices sometimes derive an equivalent carbon dioxide figure from a VOC sensor, which produces a number that moves when someone sprays cleaner and does not reliably track ventilation. Both of these listings name Sensirion, so both are in the measuring group and the comparison can move on to how the device behaves.

WiFi Turns a Gadget Into an Instrument

A carbon dioxide reading on a screen answers “is it stuffy now?”. A logged record answers the questions that actually change behaviour: how high does this classroom get by the end of a lesson, does the bedroom recover overnight with the door shut, did the new extractor make any difference. The Qingping listing states remote access via app or website and the ability to share devices with teammates, which is aimed squarely at offices, schools and shared spaces.

Seventy Days Changes Where It Can Live

A monitor tethered to a cable sits where the cable reaches. The Temtop claim of up to 70 days in eco mode means the device can be placed in the middle of a room, moved from bedroom to office to meeting room, or carried to check a space you do not own. Combined with the 3.3 inch screen, it is designed to be looked at rather than queried, which suits a household where nobody is going to open an app.

Calibrate Both the Same Way

NDIR sensors in consumer monitors use an automatic baseline routine that assumes the device periodically sees fresh outdoor air near the global background. A monitor that never leaves a stuffy room drifts upward. Give either device a spell by an open window or outdoors every few weeks, and be suspicious of any monitor that reads several hundred ppm above the outdoor background in a well ventilated empty room. Our CO2 level checker explains what the resulting numbers mean.

Who Buys Which

  • Office, classroom or shared workspace: Qingping, for logging and sharing.
  • Home use, one screen people will glance at: Temtop C1+.
  • Moving between rooms to compare: Temtop C1+, for the battery.
  • Wanting alarms and email reports: see the GoveeLife H5140.

How We Research

Figures come from the manufacturer listings. We did not run laboratory tests and publish no measurements of our own. Ranking in the CO2 monitor roundup.

Qingping CO2 Monitor Thermometer Hygrometer, Remote Monitoring via Qingping IoT, Temperature and Humidity Monitor for Different Scenarios, Fast Alert Notification, Rechargeable Battrey

Qingping CO2 Monitor Thermometer Hygrometer, Remote Monitoring via Qingping IoT,

View on Amazon
Temtop C1+ CO2 Monitor, Smart Indoor Air Quality Monitor with BLE App

Temtop C1+ CO2 Monitor, Smart Indoor Air Quality Monitor with

View on Amazon
GoveeLife Smart Air Quality Monitor CO2 Detector H5140, Display & Alarm

GoveeLife Smart Air Quality Monitor CO2 Detector H5140, Display &

View on Amazon

Products shown because their documented specifications fit this guide. Price and availability are on Amazon and can change.

Frequently Asked Questions

Do both use a real NDIR sensor?

Both listings name Sensirion. The Qingping listing states a Swiss-made Sensirion CO2 sensor using NDIR technology; the Temtop listing states a high-precision Sensirion CO2 sensor. That puts both in the genuine optical measurement category rather than the estimated group.

Which lasts longer between charges?

The Temtop C1+, which states up to 70 days in eco mode from an 800 mAh battery. The Qingping states a long standby time and the option of running permanently on USB power.

Which can I check from work?

The Qingping. Its listing states WiFi connectivity with remote access through the Qingping IoT app or website, including sharing with teammates.

What temperature and humidity ranges does the Qingping state?

The listing states -20 to 50 C (-4 to 122 F) and 0 to 99.9 percent relative humidity in non-condensing conditions.

Affiliate disclosure: Akermin earns a commission from qualifying Amazon purchases made through links on this page. Our editorial picks are based on documented specifications and owner feedback, not commissions.