Great price for the feature set. Unfortunately, battery life is very poor (never got more than 4 months on a set of batteries before they were reporting 1% life) and the motion sensing is unreliable. It will often switch back to no-motion detected while I'm in the room and not being particularly still. In the future, I will spend a little more to get a device that is more reliable.

Temp sensor worksHumidity sensor worksLight sensor worksMotion sensor does not workI have two of these with one installed on a Vera Plus and one installed on a Vera Edge

Bought two of these. Neither detect motion. The rest of the sensors work fine. Disappointing.

So I really liked these sensors when I first picked them up, worked with openhab right out of the box once i figured out that the inclusion button was in the tiny pin-hole and not the micro switch inside the body (that's the tamper switch).
All the measurements seem reasonably accurate but the reporting time has a very, very long delay.
I first noticed it when trying to use the motion sensor to turn on the light in my garage, sometimes it comes on after 3 or so seconds, but most of the time it takes well over 10 seconds for the light to turn on. Even setting it up to communicate directly with the light switch, bypassing the hub and rules altogether, the response time is just as poor.
The light sensor is even worse, there is no way to set a threshold of level change that will trigger reporting so it will simply update periodically.
There is also no good way to mount these sensors. Velcro works, but you have to do them off to change the batteries (often as you will find out) and if you mount them on paint the Velcro will eventually come off the wall.
The real deal breaker however is the battery life, it takes 2 AAA batteries and come with plain alkaline batteries. They first ran out aftera couple of weeks and I chalked it up to crappy batteries.
Unfortunately they don't do well at all on rechargable batteries, runtime is days and battery level always report 0. Best resultsi have had with lithium batteries but even then the run time is less thana month and lithium batteries are much too expensive to change that often.
These sensors would work okay if all you wanted to do was mostly log data and perhaps use for presence detection of it wasn't for the terrible battery life.
Now i have 3 sensors that really aren't good for much at all. Perhaps I can experiment with an external power source, but the sensors themselves simply aren't good enough to really be worth the effort.

I believe these are the same as the Zoos v1 sensors, the Zoos v2 cost about the same age have solved the battery life and speed issues soi would recommend those instead.

It has never reported a correct temperature. It is off up to 5 degrees in either direction. Monoprice would have let me return it but i had to package and send the old one back before they would send another, a reasonable request but still a hassle.

Very good device especially for the price. It works great with Homeseer. I have some sensors from Zooz and Aeon Labs. This works as well or better than the more expensive sensors. Recommended.

I have 15 of these and 6 other brand motions sensors (3 Fibaro multi & 3 old Zwave non plus regular motion). Battery life on the Monoprice Multi-Sensor is only about 1/3rd as long as the others. I change the othersabout once a year, these seem to only last 4 months or so. Others use a CR123 battery vs these 2xAAA batteries. I noticed the Zooz branded version moved to CR123 recently, wonder how much longer it lasts.

So far so good. Had to google how to pair it, since the directions arent' so great. The button you need to press is the pinhole, not the button inside.

I have bought 4 Z-Wave plug in light and appliance modules from Monoprice.com and they worked fine with my Z-wave interface controller, but this PIR Multi sensor will not pair up to my Z-wave controller. I would be hesitant on buying one. Bill H.

It takes lots of measurements. But the batteries run out pretty quickly, typically only last several months.