Monoprice 115902 Z-Wave Home Automation

This product is so awful, it's difficult to know where to begin when describing it's shortcomings. The first thing to know is: it simply doesn't work with SmartThings. The second thing to know is that it's relatively large. This isn't a small, unobtrusive motion sensor like the Lowe's Iris or Samsung SmartThings sensor: it's a large eyesore that's going to stand out no matter where you put it. Finally, the included documentation is garbage. When the manual says "Momentarily press the Program Switch" what they really mean is "Ignore the only thing on the device that looks like a switch. Instead, locate the smallest hole on the device. Next, find something that fits in that hole; try a SIM card ejection tool or maybe sand a paper clip until it's small enough to fit. Jab your newly created tool into the hole." Once you've done that, your SmartThings app will take an eternity to recognize the device. You'll probably have to go through the pairing process a couple of times before it succeeds (assuming it ever does). In my case, SmartThings finally detected the device as... a door/window sensor. I tried changing the device type using the SmartThings IDE (and also tried the RBoy device handler), but no matter what I did the Monoprice sensor's output never changed, making it completely useless for it's intended purpose.

Have added a few of these to Smartthings using the Zooz device handler and they work great. Didn't want to have to pay for the device handler to use with Smartthings. Hopefully others will find it helpful to use the Zooz device handler.The temp and humidity seem pretty accurate comparing the data with other sensors that aren't multi functioning. The motion sensor takes a few seconds to show up, so it isn't instantaneous. Still highly recommend these, especially with what you get for the price.

My home automation setup is linux openzwave with homeassistant. Basically the performance and battery life of this unit varies greatly depending on how you configure some of the advance device attributes. By default the motion detector is set to be relatively insensitive with short retrigger intervals, and the temperature/humidity is set up only to report with relatively major changes in temperature/humidity. How you want to set the sensor up as depends on your application. For example in my living rooms the room is frequently occupied, and I set the motion detector retrigger interval to 15 minutes. I am typically interested on how the AC is performing, so I set the temperature reporting threshold to 0.2 degrees difference and the humidity reporting threshold to 1%. The battery life for this sensor is about 3-4 months because the unit is frequently reporting. The other reviews are correct that there is an issue with the unit reporting 0% battery remaining when there is still plenty of life left. When the battery gets almost completely depleted the motion detector stops working and only reports temperature/humidity/lumens. For the basement, the sensor is used to decide whether the humidifier should turn on or off and to turn on the basement lights with motion. I set the motion detector sensitivity to high, retrigger interval to 30 minutes, temperature/humidity threshold to 1 deg/1%. The outdoor sensor is used to log motion only so I set the retrigger interval to 30 min, and the temperature/humidity to 2 deg/2%. After 8 months of use the outdoor and basement sensors report 20% and 70% respectively. The basement is a relatively steady temperature/humidity with very few motion trips so the unit does not have to send data very often. The outdoor unit is used in an environment where the temperature and humidity is rapidly changing with about 6 motion events per day, so it drained faster. I am very confident that both these units will last a whole year without needing a battery change. Keep this mind when reading the negative reviews about battery life because battery life will vary greatly depending on the circumstances on how the unit is used.The temperature readout is relatively accurate, but slow to change with a rapid fluctuation in temperature because of the thermal mass of the batteries. The humidity can read 6-8% too high, however the humidity sensor does respond to rapid changes. It can be relied on for automation purposes once you take into account the offset. The lumens sensor is sensitive on the low scale and insensitive on the high. Basically it can only be used in automation decide whether or not the room is very dim. It won't be very useful for determining whether it is sunny or overcast. Sometimes there is a long delay (10 seconds) in reporting a motion event. It might be dependent on the node traffic on my Zwave network or it could be the sensor itself. My major gripe is figuring out how to get the sensor to wakeup to push a configuration change to it. It takes many attempts for it to work.Overall this can be a pretty good sensor once you fine tune it for the application.

My wife and I have been updating our 1920 colonial with smart technology wherever we can. We have two storage spaces that I wanted to be able to monitor the temperature and humidity in - one in the attic, one in the basement.The actual unit is a great size. Very small, and I barely notice it on the wall in my basement. If I was going to put it in the living spaces of my house I might opt for one of the recessed options available with the more expensive units. But it is a generally simple and nice looking device. The physical installation was a breeze. A few screws (not included) to mount the backer plate and sensor just clicks in when you are ready.The problem for me came when I was trying to pair the sensor with my smartthings hub. I was unable to get it to pair right away. I found myself wishing there were actual instructions to help out with the process, like most of my other zwave devices. The monoprice website was not helpful, and I wound up following the installation instructions for the ZOOZ sensor that looks similar. Once installed it worked well, after a few months of installation the battery has dropped to 70% but I think that has to do with how often I am having the sensor send updates (trying to prevent mold growth)Would definitely buy again now that i have figured out the installation process.

Have 3 of these now working perfect with a Vera Lite...haven't tried the motion but wanted it just for temp and humidity

Very low quality product. Very short range of motion detection, very spotty motion detection - quite often wouldn't detect any motion. Battery lasted about 3 months - now the unit if dead and I'm not planning in replacing the battery, going to be buying a replacement unit.Total waste of money.

Hard to link to my Wink Hub 2 and works only as a temperature and humidity sensor. I bought it mainly for its temperature capability so it's OK.

This isn't a great Z-Wave sensor, but for the price it's good enough. The motion sensing is decent, but the temperature feels a little high and there's no way to calibrate it (I haven't tested it against another thermometer, though).The light sensor reports in percentage, which seems odd. I suppose it's a percentage of the maximum light that the sensor can handle. That's fine for automation, but not if you want to know the actual amount of light in a room by Lux.Most importantly, the sensor takes AAA batteries, whereas most Z-Wave sensors require more expensive CR123a cells that I don't want to buy. That includes the Zooz 4-in-1 sensor that's nearly identical (I assume one company makes it and the other rebrands).EDIT: January 2020 - I just changed the batteries for the first time. I suspect that they got weak enough awhile back that the motion sensor stopped reporting, but the temperature/humidity continued to function, and that's all I'm concerned about. So if you're concerned about battery life, that's six months on two AA batteries.

Unfortunately we were never able to make it work with our Vera system. We wrote a help ticket to both Vera and Monoprice but got no response from either. We finally requested our money back and that was answered on the spot. Bummer