Question

Best motion sensors?  Need them to control lights primarilyBest motion sensors? Need them to control lights primarily

Answer 1

I have a mix between new ST ones and the old square ones. The old ones are juke, I have to change batteries constantly. The new ones I haven’t change the battery once and it’s been a over a year since the first one I put up.  

Answer 2

I mostly use the ST ones and they work well for me

Answer 3

My Samsung ST sensors work great.  

Comments

@wintertide which version?  

Answer 4

I use Iris sensors. They are motion, humidity and temp. They work very well with ST and the response time is very quick.  

Comments

@kraft +1 For IRIS. Battery life is stellar in Gen 3 version.  

---

@kraft Wish I could find some of these, they're well done.  

Answer 5

ST motion sensors are very responsive for lights and run locally.  

Answer 6

I second the motion on SmartThings motion sensors - if your Zigbee mesh is reliable, they are the most responsive that I've found. I do use the Ecolink version where the cats roam, but a little opaque tape does the same on the ST ones.  

Answer 7

I've got both iris and st. Both work well

Answer 8

Smartthings. Sensor works great and the magnet base is ingenious.  

Answer 9

Ecolink sensors are very responsive and have a great battery life (10 years). Monoprice on the other hand have a temp sensor built into them with a shorter battery life and a little less responsiveness

Comments

10 year battery life? really? The iris sensors I have you have to change batteries monthly almost.  

---

@dutiable yes, have 10+ and they running the original batteries from 7 years ago with 90-95% on most of them depending on usage. Just one is down to be replaced which is probably used a 100 times a day in the common area.  

---

Okay that is AMAZING!  

---

Ok. Got a brand new ecolink. Unfortunately it shows the state of 'motion' constantly.  

Answer 10

What battery does the new ST motion sensor use? I never considered them before because the battery life on the originals was so bad - good to hear people seem to be having better battery life with the new ones.  

Answer 11

I believe all the latest gen smartthings brand devices take cr2450 batteries. My motion sensor has been going for over 6 months since I last put new batteries in.