SensorPush HT1

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 was in quick need of a tool that records temperature and allows the data to be displayed as a chart. After looking on Amazon, found SensorPush. Was a direct hit on what I needed. Could not find a similar product on Amazon. My main purpose of this product is to record temperatures throughout the day to show my A/C company that the new A/C they installed in my rental home is not cooling the house properly. I first practiced with it at home for a full day/night just to make sure it worked properly. Placed the sensor outside, then inside the house, with and without the A/C running. It performed flawlessly. PROs: - Takes two minutes to setup. Bluetooth sync to my Galaxy S8 - Starts working immediately once you are synced with your phone - Polling samples are every 60 seconds - There is no on/off button. It's always running - Very accurate temp readings (I compared the temperatures against another thermometer - Live view (via cellphone app) of stats (hourly/day/week..etc) - Create your own XCEL graphs with the CSV file that you export out of the sensor - I attached a picture to this review that shows the graph I created from the CSV file. (shows temp range over a time period) - Saves about twenty days of statistics inside this little Sensor - Push notifications worked just fine when I hit my thresholds - Very small in size Couple notes: 1. The very small instructions booklet is not helpful. (is mainly for warranty, disclaimers..etc) 2. First four pages is confusing - just four cartoon-like pictures. I think they are trying to show you how to scan the barcode to download the app. 3. When the sensor is in a hot environment (i.e. 100 degrees) and you move it to a cooler area (i.e. 85), takes 30-40 min for the sensor to finally show the cooler temp. - Not sure if it is normal to take that long. In the attached picture, you can see how long the sensor took to go from 99 to 83 degrees (all I did was move the sensor from outside to inside the house. But going from cooler to hotter (i.e. 85 to 100) is much quicker. 4. If you are not going to use it for a long time, may want to take out the battery. 5. This is a bluetooth devices. If you want wifi , then you will need to purchase the gateway box for an additional $99.00 Overall, excellent product and well worth the $50.00. You can't go wrong with this sensor.

I've had the original HT1 sensor for two years. It has been in the living room providing feedback on temp and humidity. The Sensor-push app is easy to use from setup to day to day use. I've used the app with my iPhone and S24 Ultra without problems. I find it particularly useful in the winter to monitor humidity and verify the humidifier is working in the living room and bedroom. It has been excellent in all regards. I've bought two more HT1's over last two years for a total of three. One is in the basement and the other is in the standup freezer in the garage. Both work as well as the first one. The one in the freezer has not had any problems. The freezer is kept at -1 deg F. Being in the freezer does limit its blue tooth range somewhat. If I'm in the kitchen which is 25 feet from the freezer it updates without a problem. The one in the basement and living room I can read anywhere in the house and just about anywhere around the yard. The battery life is as advertised. I get about 14 months of life from the battery before it needs replacement. A word of advice when changing the battery: Make sure you have the new battery at hand. Don't remove the old battery and then open the package with the new battery. You have about 15 seconds to slide out the old battery and slide in the new battery. Taking longer will result in having to go thru the bluetooth pairing process with the app. I'm very satisfied with the HT1 and recommend it to others.

Rugged (used them outdoors, although shield from rain). Seem accurate (when eyeballed with liquid thermometer) Battery lasts at least a year. Wish the range was longer, expecially when I try to use them to monitor the interior temperature of a refrigerator -- being in a metal box like that means it needs to be pretty close to the gateway to work.

The easiest sensor I have ever linked to my phone's Bluetooth and used. Simply tap the add device and find the model type and add; an image of the adding sensor pops up onscreen upon which you set the sensor to pair- done. Super easy! Chose these over the competition since these didn't require a cord to pass out the door to the sensor, it is all wireless for about the same price as the others. In the first month of use it saved our household an entire refrigerator of spoiled food. The fridge stopped cooling one night and the notifications from the app alerted us to the problem just as the temperature got above 44 degrees inside. We were able to quickly move everything into another fridge before it all went bad. Easily paid for itself that night! We now have 5 separate SensorPush sensors- 1 HT1, 4 HTP.wx's, and one Base Station. The app is super easy and intuitive too, with easy-to-read charts or tables that track the temps and humidity of every connected sensor all at once. Great products will definitely buy again and have recommended to all my friends!

This sensor was very easy to set up, except for setting the proper Android permissions for the app. That is not SensorPush's fault, it is Google's fault for allowing different Android phones to have wildly different Settings UIs and for letting them change all the time. The SensorPush part of the setup was super easy. To test one sensor, I put it in the small grow tent where I am growing lithops, directly alongside a Thermoworks Signals probe I use for monitoring temperature and the exhaust fan's temperature sensor. I had assumed the SensorPush sensor would be problematic because everyone says it is so sensitive to direct sunlight, so I figured it would be at least a little sensitive to a powerful grow light. But it performs almost exactly as advertised, only +/-1.4F different from the Signals readings. It does read both higher and lower than the Signals device, so I can't use the SensorPush calibration setting to adjust it (as I could if it were, say, consistently reading too high), but I don't care because it is performing to specs and good enough for my simple needs. I put a second sensor in a fridge that I have in our garage. I didn't bother to compare this one to a known-good device like the Thermoworks; my goal for this test was to see if I could get readings from the sensor when it was inside the fridge out in the garage. It turns out that as long as my phone is not at the far end of the house, it can get readings from the sensor. Since I am buying the SensorPush wifi gateway and the gateway will live close to the garage, I'm all set. The sensor did alert me when the temp in the fridge got too cold, so that is working as well. I will be putting 2 more sensors outside in 2 cold frames that I have ordered for my succulents so I can monitor them. My big concern with the cold frames is that they will get too hot before the auto-opening vents kick in. The SensorPush sensors should be able to alert me if that happens. And let me thank SensorPush for something else: intelligent UX. If I set my Thermoworks Signals device up with high and low temperature thresholds prior to placing its probe, and the probe senses the temp is outside that range, it IMMEDIATELY starts screaming at me and continues screaming at me until I can shut off the temperature alarm and place the probe e.g. in a roast I'm going to cook. When I set the high and low temps for a SensorPush probe, on the other hand, it was smart enough to say, "OK, the temp is outside the allowed range, but he just set the allowed range, so I'll wait until the temp goes into the allowed range and THEN start monitoring for it to go out of range again." This makes so much more sense. Here's how it worked with the sensor I put in the fridge: I set the low temp to 33F and the high temp to 40F. The sensor was in a 70F room. The Thermoworks would've been screaming at me already. But the SensorPush waited until I put the sensor inside the fridge and the temp registered between 33F and 40F to "arm" its alerts, so to speak. After a while it alerted me that the temp had gone below 33F. Perfect. I am happy with these sensors. If I had known there were higher-end models that were slightly more accurate, I probably would've sprung for those, but honestly the low-end model is good enough for my needs. Now I can retire the Signals device I've been using to monitor the grow tent and go back to using the Signals for cooking, and I'll have all of my temperature sensor readings and alerts in the single SensorPush app.

3/10/17 Update: The two SensorPush units are now in their respective homes, one in a greenhouse and another in a grow tent. They seem to average out okay as far as temperature and humidity, with strange spikes on the greenhouse unit that are often as much as 20 degrees higher than actual during mid day. I can only assume it has something to do with the humidity levels, but, really, who wants to put that much thought into a thermometer? Of greater issue, now, is the app. It is completely wonky. When opening the app on both an Ipad pro and Iphone 7+, both with current software (ios 10.2.1), the temp and humidity is displayed. By clicking on the readings for a particular unit, you're supposed to be able to see the history for the unit which can be tracked by the last hour, day, week, month or year. When I open the app on either of my devices, there is a green bar that states "Loading Sensor Data." The issue...the data only loads perhaps 1 out of 10 times. I've finally figured out that it's because the bluetooth doesn't seem to connect for "sensor data" even though the temp and humidity are updated. If I completely reboot either the ipad or iphone, the "Sensor Data" will load. But, I don't often have the time or inclination to reboot my mobile devices to check on...a thermometer. The last possible vestiges of any reason to own these SensorPush devices was the tracking app. These things, app included, have been a complete and utter fail. 2/23/17 Update: After a week of jumping through hoops, I may have gotten these things to at least function, but, I still don't trust them. The two SensorPush units spent the entire week side by side, first in a greenhouse, then in a grow tent, then in a cigar humidor, all equipped with much less expensive, but calibrated and accurate digital hygrometer/thermometers. Throughout the week, the units were often as much as 30% off on humidity readings and 20 degrees off on temperature, not only from the digital units, but from each other. Temperature and humidity tended to spike and ebb spontaneously at times, sometimes on only one unit, sometimes on both. Updating and connectivity was a consistent issue as well, even when they sat on a desk less than 2 ft from my phone and ipad, which I use to check readings through the SensorPush app. Finally, I broke down and bought an $8 Boveda hygrometer calibration pack, which I didn't think I needed (and, frankly, which should be included with these units, given the fact they are so "off" on arrival), because the other hygrometers had all been calibrated. I placed the two SensorPush units and the cigar hygrometer in the Boveda pack. Within 10 minutes, the cigar hygrometer was reading an even 75%. It took a full 24 hours for the SensorPush units to level out, and it really only happened in the last two hours. Temperature of the SensorPush units, even when sitting side by side on a desk in the calibration pack was often different by as much as a two degrees. This, I know, is nitpicking, but, when you pay $50 for a "Smart" sensor, you kinda expect it to be smarter than the $10 units you've used for years. SensorPush seems to be the epitome of what we can expect from Millennial run companies these days. Over Promise, Under Perform (or OPUP, pronounced Oh, Poop). Customer service extends as far as them telling you to send them an email, which I did. 23 1/2 hours later I received an email response, "Sorry there are some issues going on. I'm happy to walk through this with you online or over the phone. Just let me know a time tomorrow that works on your end between 9 and 5 eastern. Jonathan" Yet, there was no phone number attached to the email. Apparently, I was supposed to send them another email and then wait...again. Nothing like playing email tag over the course of days, when one 15 minute phone call to an 800 number that they apparently don't have could likely clear things up and be a lot less hassle for everyone. I'm stuck with these things now, but would not recommend them and would have sent them back had I not eagerly ripped open and disposed of the packaging in my excitement to receive them. Quite simply, I don't trust the readings they give, and, other than calibrating them everyday, have no way to verify the readings. Heck, even with calibrating them everyday, I don't think I'd trust them. My .02c...save your money and go old school. There's something to be said for seeing real numbers on a screen. Cheers! 2/16/17 Initial Review: While the idea seems great and the interface is very slick, these things seem to be a total fail. I bought two, one for an outside greenhouse and one for an inside grow tent. I currently have a digital thermostat/humidity gauge in the grow tent. I've had both of the SensorPush units about 3" apart and right next to the probe for my digital unit inside the grow tent for about 18 hours, which should be plenty of time for acclimation and calibration. After multiple calibrations (see attached screenshot), these units have not only been up to 10 - 20 degrees out of sync with the digital unit, as well as as much as 30% out of whack regarding humidity, they are currently over 20 degrees temp and 30% humidity out of sync with each other. Again, they are currently about 3" apart in the same location and have been that way for 18 hours. I really wanted to like these, but, if I can find the packaging, I'm sending them back.

These clever and small temperature and humidity monitors are a great way to track conditions anywhere! I use one to compare my HVAC temp setting to output, one in my garage to monitor temperature there, and another as an outdoor temperature monitor. With respect to the latter, there is very tight correlation between the SensorPush HT temp reading and my complex home weather station. I plan to use one to monitor my internal refrigerator temperature should we lose power in the impending snow/ice storm so that I'll know how long I can rest my home generator to conserve fuel in the event of a prolonged power outage. Great devices!