testo 405i - Bluetooth Thermal Anemometer Smart Probe

Perfect product for the application

The 450i anemometer worked fine (screenshot attached). I did the math using the cross-section area of the duct, and the number was within 5% of than the rated output of the blower that I was to create the air flow. The app was easy to install, but asked access to my contacts and location. The manufacturer should offer options to disable this, and should not bundle reviews for all smart probes into one. Please offer the case with foam inserts to keep the probes. Thanks!

UTTER RUBBISH! THE BLUETOOTH CONNECTION LASTED FOR JUST A FEW MINUTES AND THEN DISCONNECTED ITSELF AND IT WON'T RECONNECT. THE INSTRUCTION MANUAL IS TOTALLY USELESS AND I HAVE ABSOLUTELY NO IDEA HOW TO TRANSMIT DATA FROM THE PROBE TO MY PHONE. IT IS GOING STRAIGHT BACK TO WHERE IT CAME FROM!

good

Unable to get calibrated and bluetooth connection erratic. Fast response time % poor damping algorithm. Unsuitable for repeatable readings at lower velocities.

I'm on my second one of these. I start up industrial dust collection systems and traditionally use a pitot tube and Dwyer digital manometer. I did several duct balancing trips where I used this and the traditional pitot tube and found this to be extremely accurate and much more user friendly so I now only use this. It has a max velocity of 6,000 FPM, so while it works for traditional dust collection it does not work for high performance applications (like Negative Lift systems). Its minimum temp is somewhere around -10 degF, so it does not work in extreme winter conditions. The bulb is sensitive to buildup, but less sensitive than my collapsible pitot tube. Eventually, the bulb does bend over and even if you straighten it the readings will be incorrect. That's when its time to throw it out and get a new one. Over all, I highly recommend.

Product is accurate and easy to use Delivery was so fast , actually reached before delivery date by 5 days Thanks Amazon

Funciona muy bien en los conductos. La app vincula rápido. Es cómodo para mover.

Excelente calidad!!

使用にあたっては専用アプリをインストールしたスマホ(またはタブレット)が必須です。本体には測定結果の表示部はありません。私は経時ログを取る必要があったのでそれでもよいのですが、単に風速を測定したいだけの方には本体＋スマホの２台持ちになるので少し面倒かもしれません。 なお、そのアプリですが、「testo Smart」でないと動きません。製品の梱包箱に「Download testo Smart Probes APP」と書かれた小さな紙が入っていたのですが、その「testo Smart Probes」は別のアプリ(旧製品用？)でありこの製品とは接続できません。紛らわしいのでご注意ください。この紙がなぜ入れてあるのか不可解です。 アプリ自体の機能は必要十分と思われます。Amazonの説明文に書かれていること以外に下記のことができます。 ・風速の単位：m/s, mph, km/h, fpm ・測定間隔：1sから23h59m59sまで1s刻みで任意 ・タイマー測定可能 ・気圧補正機能あり ・ログはcsvあるいはjsonでエクスポート可能 とても小型で、折りたためばポケットにも入ります。しいて言えば三脚等に固定するためのネジ穴がないことだけ残念ですが、大きさとの兼ね合いでこうなったのかもしれません。 ともあれ、ログ取り可能な熱線式風速計がこれだけ手軽に手に入るのは本当に嬉しいです。