HT1 Smart Temperature Sensor and Humidity Sensor - Bluetooth Thermometer and Hygrometer with App Monitoring - Indoor/Outdoor Temperature and Humidity Monitor for RV, Basement, Fridge & More (1 Pack)

As a guitarist with over 30 years of experience, I’ve tried countless hygrometers to protect my instruments, but none compare to the SensorPush HT1. This device is a game-changer with its unparalleled precision and accuracy. It gives me complete confidence that my guitars are stored in optimal conditions, preserving their tone and longevity. I was so impressed that I purchased one for each of my guitars, and they’ve all performed flawlessly.The SensorPush HT1 is user-friendly, reliable, and delivers real-time data with remarkable consistency. Its compact design fits perfectly in guitar cases, and the app is intuitive, making it easy to monitor humidity levels on the go. For anyone debating whether to buy this hygrometer, let me save you the trouble—stop searching and get one. It’s simply the best on the market.I also want to give a heartfelt shoutout to Jonathan Cousins, the owner, who went above and beyond to assist me. His professionalism, kindness, and expertise helped me choose the perfect hygrometer for my needs. It’s rare to encounter such exceptional customer service, and it made my experience even more satisfying.If you care about your instruments as much as I do, the SensorPush HT1 is an absolute must-have. Highly recommended!

After loosing two freezers full of food, I decided I needed a sensor that would work in a freezer in the bay of my motor home. After having two different ones that worked on a freezer and refrigerator, different brands, and not working underneath in a compartment, I decided to try the Sensor Push. Amazing! I am not a technocrat, and having read some of the review about lack of documentation, I went for it. Received in one day, opened the box, unpacked it, looked at the documentation ... yep, 4 pictures. Picture 1 Smart phone with ICON for play store and ICON for app store. Simple. Opened Samsung Galaxy S10 and downloaded and installed the app for Sensor Plus. Picture didn't say Sensor Plus, but after experience with 300 plus other apps, it is normal to push the mic button and say the name of what you have in your hand. Sensor Plus! Nice. Downloaded and installed in seconds, which looked like the second picture. 3 picture looked easy enough ... answer yes to allow location and turn on bluetooth. Picture 4 ... this is the hard part, a picture of the sensor appeared on-screen and said to place the sensor over the picture. Just like that we are hooked up and connected to blue tooth. From there, no more pictures in the booklet. But, looking at the phone the screen showed the name of the sensor (I changed it to represent the location it would be used), next temperature with a little line with MIN and MAX, with an option for an alert. I want to know when the freezer changes from it's normal 0 degrees to 15 degrees, which allows me time to pull off the road and open the compartment and take investigate why the freezer has changed, before things start thawing above 32 degrees. Same option for humidity, which I skipped quickly by, and then options to calibrate temperature and humidity. They were already at room temp, so until I found an oven or other thermometer to use to calibrate, I left factory temps alone. Hit the done sign, and placed the sensor in the freezer. Waited and watch the temperature of the sensor start to drop. Closed freezer tightly, closed the compartment, and took a seat outside with no metal around about 20 feet away. Neat, Hit the name of the sensor and two graphs ... one for temperature and one for humidity. Both falling as the sensor started getting cold. Watching over time, I can see where the temperature starts to rise, and then the compressor kicks back in and the temperature starts to drop one again. Would I buy one again! Of course, now the wife wants one inside the refrigerator as well. Since we normally have wifi when traveling, I ordered one more sensor for the refrigerator and the gateway sensor, so when we stop and leave the coach unattended, we will know if any issues develop. Great product and I expect the second sensor and the gateway to be of the same high quality standard. Will update if any issues.Batteries ... should last 1 - 2 years under normal warm conditions, so since the sensors will be refrigerated and frozen, I ordered a 5 pack of CR2477s for insurance. Amazon will ship anywhere we go, but until we find out exactly how long the last under extreme conditions, I'll carry enough to get me to the next required battery change and order more.UPDATE: Bought second sensor and G1 Gateway. This was too easy to hook up. 11 days and no more lost food. All components work well together and with the Gateway, food temps can be monitored while away. So far battery in sensor has dropped to 2.7v in 11 days, this is definitely in extremely cold freezer. Gateway is 20 feet away and monitoring two sensors without issue. Will buy another set for the house. These work well in a motor home surrounded by metal and all kinds of electronic components.

I have bought 30 of these over the past 6 years. Only 1 failed after several years. I have tried others that are cheaper but I keep coming back do to the reliability, battery life and auto updating. Cheaper units require a manual update which I commonly forgot, so I loose weeks of temperature history these sensors will auto update if I walk into Bluetooth range. They are great for monitoring freezers after power failures to warn if high temperatures. I used to ensure good temperatures in 7 freezers in recent tornado power failures. Battery changes are simple with plenty of warning time. Can archive history for years of comparisons for record cold or hot days.

I have combination two sensors and wifi gateway while using a Samsung S21 phone. This works extremely well, I can check the temperature in my backyard or refrigerator from anywhere. For us data enthusiasts, it takes a data point about every minute, creates very nice graphs on the app and allows download of the data into a CSV file. For android, the export is a zip file found conveniently in the download folder with entries every minute. Well done! My wife is also happy because we can add a phone alarm that goes off any time a kid leaves the refrigerator door open and the temperature goes above 45.I was very disappointed by the lack of Smart home integration, thus the 4/5. The Alexa skill barely works and is quite poor by today's standards. I was unable to get any integration with Google Home. For this price point, I expected significantly better integration. The product line seems static as I see no further developments since 2018/2019.