I ordered 2 of these. They come in a little box with the right amount of packaging. I don't feel like I am paying more for the packaging than the device as is sometimes the case.
I struggled a little bit to get the circuit board assembly out to pull the pairing insulator. An easy trick is to slightly squeeze the outside end of the case, which if done in the right place will allow the board to pull out easily.
The actual pairing with my Smartthings v2 hub was 100% seamless. I was a bit concerned because of other reviews, but Smartthings must have fixed any previous problems. Also no need for modified api programming either. It just works.
I used a 3/4 in Forstner bit. It worked great. The manufacturer include the English measurement to reduce confusion. A spade bit would have also worked just fine.
I actually needed to ream out the 3/4 hole somewhat to get the main sensor body to fit in a way that I would be able to get it back out to change the battery at a later time.
The short magnet part fit perfectly snug with the hole from the 3/4 bit. It did not require adhesive. I will need to monitor this because temp and humidity changes may loosen the fit in my wood door frame through seasons and time.
I chose to install this sensor in the top of my door so that later I won't need to look at or repair that big 3/4 hole. It will also never fall out up there or get tampered with. I didn't even use the screws.
In operation it may not be quite as precise as I had hoped. The sensor indicates "closed" about an inch (25.4 mm) before the door is completely closed. I may modify the magnet to reduce this range if it causes any functional problems with my door lock management. If anyone has insight to adjusting sensitivity, please leave a comment.
For those wanting temperature. I would suggest that knowing the temperature of the core of your door or doorframe has no value unless you are trying to study the insulation properties of your door.
I did mount the sensor in the door itself. I am not worried about the impacts damaging the sensor because it is a heavy door that fits well and closes smoothly. If I were concerned about durability I would be concentrating on making my door close better.
The CR2 lithium batteries registered 100% when first installed and measured in at 3.04 volts and 2.98 volts, so I know it is not just programmed to make me feel good. This is outstanding compared to other recently purchased sensors that have arrived with only 75% life remaining. Battery discharge rates are very predictable for a given battery. In the future I am planning to return devices or expect a discount on devices that come with partially depleted batteries and not purchase those brands again.
The little led is annoying and I might put some tape over it as another reviewer suggested. I don't really want to advertise exactly where my door sensor is located.
In conclusion this sensor does its job and does it well. It is invisible and easy to install. Reliability and battery life are not yet known. So far Aeon has my business over other brands for sensors and devices.
| Manufacturer | Aeon Labs LLC |
|---|---|
| Part Number | ZW089 |
| Item Weight | 0.64 ounces |
| Product Dimensions | 1.6 x 0.8 x 2.5 inches |
| Item model number | ZW089 |
| Batteries | 1 CR123A batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Size | Small |
| Color | White |
| Power Source | Battery powered |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Mounting Type | Door |
| Usage | Indoor use only |
| Included Components | Magnet, Sensor unit, Screw(x2) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium |
| Warranty Description | 1 year warranty against manufacturer defects |
