HT-18+

I’ve wanted a thermal camera for ages, and owning this one doesn’t disappoint! It’s so fun to go around your home to find where you could use some insulation, and it could even find things like water leaks for you in the right circumstances. I’ve already spotted a problem area in my attic, as shown in my image. This is my first thermal camera, so I wouldn’t know what to expect in comparison to other models or bigger brand names. Having said that, this one seems great. The refresh rate and IR resolution are killer for the price range, most models I can find from big names are a fraction of the specs of this model. I haven’t exercised all the functions but so far everything is working great. Some things to know that I wasn’t aware of before getting this: 1. It’s pretty large; as far as I know this is totally normal for a thermal camera with these specs, but it surprised me. 2. As other reviewers have mentioned, it takes a bit of time, maybe 10-20 seconds, to turn off and on. More like a computer or cell phone, time-wise, than a simple electronic like a single-reading laser thermometer. 3. The thing I wish the most this thing had is the ability to set a manual temperature range. If something much hotter or colder than what you’re looking at is in your image, subtle differences are harder to see. For example, when I point this at my wall with my smart thermostat, the thermostat is so much warmer than the wall that the temperature fluctuations of the wall itself are harder to see. This camera will automatically set the temperature range based on what is currently in the image, I can’t manually set it to tighten that range so that 15° really stands out next something 17° even if there’s something 30° right next to both of those things. It won’t prevent you from getting the info you need, it would just be really handy. I thought this was a standard thermal camera feature and was ready to fault this model for not having it, but after looking into it, it’s not something that’s guaranteed amongst other cameras I looked at and this model isn’t advertised as having the feature. Something that’s good to know about in advance. Overall I’m happy and will update my review if I notice anything else as I keep using it.

It’s been a great thermal camera has been very useful. The picture is clear and the system is easy to use. Had it for almost a year and had no issues so far..

This camera comes in at an attractive price point. It is pretty accurate and has some useful features such as making video files. The form factor is good although the plastic feels hard and cheap like ABS. The screen is readable indoors but totally washed out in sunlight even at the highest brightness setting (called "Intensity" in the menu). The cable is a micro USB to USB A and appears to be somewhat special. That is, several other similar cables would not connect to a computer even though they would charge. Contrary to another review, I have had no problems accessing the internal storage with a Mac running Ventura 13.1 (22C65). It appears as a FAT32 disk. Now comes the real problem illustrated in the two attached photos. One was taken of the A/C vent at a distance of 10 feet. The other was of a flashlight at a distance of 18 inches. See how bad the parallax is for the flashlight? This can be adjusted. The manufacturer knew it would need to be adjusted frequently since this adjustment is the first menu item. Get used to accessing it. You will use it a lot unless all your images are at about the same distance. Why this happens is shown in the 3rd image. There is approximately 32.5 mm of offset between the optical sensor on top and the IR sensor on the bottom. Too much! I also don't like that the battery is not easily replaceable. It is an 18650 but it is wired to a JST plug. If you are good with soldering, this is no problem. If not, better hope that cell lasts a while. Not having removable storage is a negative. It appears that the firmware for the device is on the same internal storage that images and videos are stored on. Being FAT32, this could become corrupted rendering the device unusable. Last negative is the fact that the quoted temperature span is achieve with two ranges. The high range is very high and would not even be suitable for working under the hood of a car. In summary, the device works and is reasonably accurate but a low price has been achieved by some significant compromises.

Has been a pretty good piece of gear for the price. The resolution is pretty good out to around 50 or 60 yards. Great for seeing what's out at night.

HTI thermal cameras have the similar specs to Fluke, FLIR or Klein for a fraction of the price. For the novice user this price difference is what matters most. I use this handy tool sporadically. It has multiple uses, although I have yet try it out on a ghost hunt!! The HT-18+ has a large 256X192 image size that is better than most and it records video! The large 3.2" screen size and 2000mAh battery make it very usable in the field. The 4GB internal storage is plenty. The HT-18+ only connects via USB. No removable SD card or Wi-Fi connection. The "IR Image Tools" Windows software is great for reviewing images (too bad there is no industry standard for Thermal Images). If you are a Pro users you can get it factory re-calibrated every year.

It's just not really sensitive enough for my needs on repairing automobiles. The heat range is a problem. You have two options. 0-240 or I believe 240-1000 or so. Catalytic converters run 1200-2000 degrees. It just shows "over" and loses the color pallet. These normally cost $12-1500 so I should have known, but it was worth a try.

Sono contento del prodotto, fa il suo lavoro mette ben in evidenza distribuzione del calore in un impianto a pavimento era lo scopo principale ed immediato ma penso mi sarà utile in molte occasioni

TODO PERFECTO BUENA CALIDAD FUNCIONA PERFECTAMENTE

Die wenigsten Heimwerker werden eine Wärmebildkamera besitzen oder regelmäßig benötigen. Jedoch gibt es für energiebewusste Eigenheimbesitzer viele Anwendungsmöglichkeiten zur Nutzung einer solchen Kamera. Sei es zur Überprüfung der Wärmeübertragung von Fenstern, Undichtigkeit einer Türdichtung oder der Dachisolierung. Auch das Aufdecken unnötiger Verbraucher oder eines Hitzestaus ist möglich. Mit der HT-18 + können alle Überprüfungen sehr professionell vorgenommen werden. Die Kamera lässt sich auf Deutsch einstellen und somit ist eine Bedienung nahezu kinderleicht. Die Wärmebildkamera bietet sogar die Möglichkeit, das reale Bild und das Wärmebild miteinander verschmelzen zu lassen. Dies kann nicht jede Wärmebildkamera und erst recht nicht in dieser Preisklasse. Zusammengefasst überzeugt die HT-18+ mit tollen Möglichkeiten für den privaten Heimwerker.

Excellente qualité apparente de l'imageur thermique HT-18+ pour un prix modique comparé aux appareils similaires sur le marché. L'ergonomie est bonne, la finition de l'appareil est impeccable. La sensibilité thermique NETD est spécifiée à moins de 40 mK sur la page Amazon de l'appareil et à moins de 50 mK sur sa notice. Quel est le bon chiffre : 40 ou 50 ? En tout cas, les images m'apparaissent suffisamment nettes pour l'usage que j'ai fait du HT-18+ depuis que je l'ai en main. Tout fonctionne bien, conformément aux spécifications, notamment la liaison USB-C USB-A entre l'appareil et mon ordinateur macOS. Par contre, il n'y a pas de logiciel d'analyse pour macOS alors qu'il y en a un pour windows. J'ai dû compenser ce manque en développant mon propre logiciel d'analyse à partir des images jpeg fournies par le HT-18+. Mais ça demande du temps de développement et c'est approximatif à cause du recalcul des températures ! Je veux bien comprendre qu'en raison peut-être du prix de vente modéré, le fabriquant n'ait pas pu fournir un logiciel d'analyse pour tous les OS. Cependant, à défaut de ce logiciel, le fabricant aurait dû rendre disponible pour tous les utilisateurs les informations nécessaires à l'analyse. Par exemple : en même temps qu'une image thermique jpeg, enregistrer sur la mémoire flash un fichier contenant le tableau des températures pour chacun de ses pixels. Cela ne demanderait que très peu d'effort de développement de la part du fabricant que d'enregistrer de tels fichiers de températures pour une taille approximative de 100kB chacun. Concernant l'interface utilisateur de l'appareil, les menus ne sont pas très intuitifs ce qui oblige à consulter la notice avant de pouvoir utiliser les fonctionnalités de base. Ainsi, quel est l'intérêt d'avoir une touche "ENTER" et une touche "SELECT" qui semblent avoir à peu près la même fonction ? Comment expliquer que pour répondre "YES" à une question, il faille appuyer sur la touche "MENU", et pour répondre "NO", il faille appuyer sur la touche "SELECT" ? Ah si, j'ai trouvé la raison : il faut appuyer sur la touche qui est sur la même verticale que le "YES" ou le "NO" affichés sur l'écran 🙂 Il ne me reste plus qu'à espérer que cet appareil puisse durer pendant plusieurs années.

Die IR-Kamera funktioniert sehr gut, habe damit schon einige schlecht isolierte Rohre und schlechte elektrische Klemmstellen lokalisieren können.