(UPGRADED) AMIR Refrigerator Thermometer, Wireless Indoor Outdoor Freezer Thermometer, Sensor Temperature Monitor with Audible Alarm Temperature Gauge for Kitchen, Freezer, Home (Battery not Included)

Here’s the best review I can give at this time. Received unit and put fresh batteries first in base unit, then added batteries to each of the two sensors. All three sensors registered good temps within 10 seconds. I placed first sensor in deep freeze and second out in a unheated area. After stabilization, all 3 registered temps that were consistent with mechanical thermometers I already had in each location. I placed the main unit upstairs in living area, not far above the two remote sensors downstairs – separated by ~ 1″ of floor material and R30 insulation, and the freezer sensor inside the freezer compartment. Both stayed connected to base unit. Contrary to an earlier review, all 3 sensor channels have independent and settable alarm settings. Base channel is intended as an indoor sensor, and the alarm settings are settable from -9C – 60C – if that doesn’t cover most living areas, well you’re hardier than me! The remote sensor channels are settable between -39C – 60C – totally suitable for most household deep freezers. Alarm limit setup is fairly straightforward – hold down the appropriate key 3 sec. for the channel intended, set the high limit, hit same key once, and set low limit, and hit same key once again. You can do this for each channel, including the internal/ base unit sensor – just stay within the limits stated. When the main display is on, the numbers displayed on the right may seem confusing, but they are simply the highest and lowest recent temps registered on that channel. Hit “Clear” once (Short – once), and they will reset and start registering recent temp changes again. WARNING: If you hold down the “Clear” key for 3 seconds, it resets everything and starts the process over – you may have to do that to reacquire sensors after replacing batteries, but will just cause you additional work otherwise! It would have been less confusing if there was a key to display “recent” vs “set alarm settings’, but there’s not. If you want to review your alarm settings, hold down the appropriate “Alarm Setting” button for 3 seconds. If the Hi limit setting is what you want for the hi limit, then hit same key again once (don’t hold). If you wish to make a change, use /- keys to adjust desired change, then hit same key again once. That will put you into the low alarm settings mode. Again, use /_ keys to set to desired lo limit, or do nothing to keep current setting, then hit same key again and all settings you viewed are saved. NOTE: You have to set and/or view all alarm settings individually by sensor channel – all 3 are independent of each other! Actually, pretty straightforward and it works, and the instructions are accurate, albeit busy. But that’s typical for any device that is performing multiple functions and few keys to program with. I found this one far more straightforward than so many other devices that require pressing multiple switches to perform necessary setup. As for alarm volume, you won’t hear it unless you’re nearby – that is why I placed base unit up in the living area. Yes, it would be nice if it were louder, but given the physical confines of the base unit, it is what it is. It was audible if I were nearby but it’s not going to wake you up, or likely to be heard over loud ambient noise – but it is audible. This is a common complaint for most residential temp monitors on the market and I guess it is just a case of “when’s the next best thing coming”! This one isn’t any worse than others I’ve dealt with. Long term, not sure how battery life will be for the sensor inside the freezer compartment. Each remote has a battery condition reading so at least it can be monitored. I have 3 deep freezers at my place, each in remote locations, but 2 of them are visited frequently. I bought this one to monitor the one I don’t visit that often but it holds a lot of valuable meat I would hate to spoil. The other two I have small lights plugged into the GFI outlets so I can do frequent visual checks on them – GFI’s seem to be biggest culprits of things shutting down, especially if you experience periodic power outages. For the $$, this unit is working well for it’s low cost. [...]