WiFi CO2 Detector, 5s Refresh High Accuracy Smart CO2 Monitor, App Control Indoor CO2 Meter with Alert, 1 Year Data Storage Air Quality Monitor for Home, Office(Only Supports 2.4G WiFi)

We've all heard about rising greenhouse gases like CO2, which contribute to global warming. But do you also know that CO2 concentrations have an impact on our personal health as well as the health of animals and plants? When I found this product, I couldn't wait to buy it back and measure the CO2 concentration around me, and I made a surprising discovery:When I woke up, the CO2 PPM was 1700PPM, which was much higher than 700PPM. This may be the reason why I am not awake every day; Also, I was playing games with my friends in my entertainment room and found that the CO2 concentration soon rose above 1500PPM. The detector alarmed, so I opened the window in time to let the air circulate;So, I'm going to buy one for my grandma too . The air in her room has been bad, keeping the air flowing.Here's an analysis of the product I've summed up:1. For comparison, this is the most cost-effective NDIR smart CO2 detector on Amazon; this carbon dioxide detector uses an NDIR sensor, and its accuracy is basically compared to other carbon dioxide detectors I purchased (more than 2 times the price) Consistent.2. The multi-functional air detection, in addition to CO2, also has a temperature and humidity function, which is very convenient for daily use, and the product belongs to the APP connection. I can easily monitor the air conditioning at home remotely, which is very helpful for taking care of my greenhouse.3. Color screen, I don't like traditional LCD screen or monochrome screen, it looks not advanced enough, this one looks cool, the instructions are very clear, and the screen is also very large;4. The network connection is very simple, and you can see a lot of data in real-time in the APP. This carbon dioxide detector will automatically issue an alarm when it exceeds 1500PPM, and you can also set the carbon dioxide concentration alarm value yourself, which is very convenient. Usually, I can see the air condition in my grandma’s room remotely, and I can remind her to pay attention to the ventilation in the room.Problems I found in using:1. The problem of standby time is that it can be used for a day normally. If it is used for a long time, it needs to be plugged in all the time. I looked at other products and found that the power consumption of similar CO2 detectors is relatively high. Coupled with WiFi network communication, the power consumption will increase. I am an electronic engineer. I think it is difficult for the manufacturer to solve this problem in a short time. If the seller sees my message, maybe I can help to do some optimization.2. The keys are relatively complicated, and I need to learn the operation from the manual. I found a few problems I encountered, hoping to help other buyers:1) How to remove the alarm sound when it exceeds 1500PPM, press the + button to turn on or off the buzzer;2) When configuring the network, press the button until the WiFi screen flashes. Do not use the 5GHz router network when configuring the network, otherwise, it will not be able to connect to the Internet;3) Double-click the "O" button to adjust the CO2 threshold;There are some issues, but it cannot be denied that this is an impressive product. Great product I would recommend.

Got this item to monitor the CO2 levels in my barn/shed. I keep some living things in there and this device is a great way to remotely monitor the living conditions there to make sure my things are well taken care of. I like that the app is so convenient

Does the job.Its easy to move around to measure it at different places at home

Was reading 400-420 outside. Seems to work well. Recommend.Some issues that would be great if the seller can fix:1) The instructions don't say that to calibrate all 3 buttons need to be pressed after power off. I figured this out from one of the question answers on the Amazon page.2) When the alarm beeps, pressing ➕ causes the beep to turn of completely and never turns on again. Please change the FW to do this:a) Short ➕ press:- Turn off alarm sound (snooze)- keep 🔊 icon on- don't turn on alarm sound on again until CO2 goes under preset (1500 for example) and then above preset.b) Long ➕ press- allows you to turn 🔊 icon on/off3) Please upload CO2 value to cloud/app more often. 1x per hour is not enough. Please don't average the CO2 over 1 hour. 1x per minute would be great. Or every 5-10 minutes if 1x per minute is too much.4) Please use correct timestamps for data displayed in the app.5) Turning on WiFi with ➖ causes the device to disappear in the app. This happened 2 times already.6) I can't see humidity together with CO2 and temperature on the datalog chart. Only CO2 and temperature show together.This could be perfect with more love.

Great little product was delivered sane day. It's Bluetooth, has temp, humidity and of course CO2 levels it's tell you what the acceptable levels of CO2. Portable you can go room to room. In the basement or your attic. Would definitely recommend.

13MAR2023: This is detector is great for homes, offices, or classrooms, but should not be put in areas with high CO2 levels. The detector self-calibrates once a week and fails in areas with high (>1000 ppm) CO2 concentrations. LSENLTY is working on a model for commercial/agricultural use. I'm testing a redesigned model in a room where I ferment juices and produce a lot of CO2. The goal of the new design is to continue operating above 1500 ppm. My spaces go up to 3000 ppm.NOTE: This model can be recalibrated by taking it outside to fresh air and re-started.UPDATE: LSENTY reached out to me based on this review. They have updated the design to improve the reliability, and I am testing the new design to see if it meets my needs. They do have a very good warranty, and they do promptly replace the detectors if there is a problem. This is what you should look for if you do buy a detector from anyone:These detectors "soft fail" to give you the impression that you have a healthy atmosphere even if CO2 is over 3000ppm. Great phone and hardware user interfaces, love the wifi monitoring and ability to set alarms, and the rapid updates, but the detector module itself is completely unreliable. Four stars since for great customer service and the feature set.Do not blindly trust any detector. Check it frequently and return it promptly if it fails. Like we used to say at my old job, "Trust and verify"

This product does not seem like it is giving me accurate information. The numbers can go from one extreme to another very quickly, even when environmental factors have not changed at all. I do not think it’s a very well designed product and the noises are obnoxious and difficult to turn off if you no longer have the manual.

This C02 Monitor Is very simple to install and does what I Want it to and at a very reasonable price.