MSR-2 mmWave Multisensor (LD2410B)

Great little presence devices

Using these in my basement to control zone lighting and they work fantastic. Have bought 4 now and all are flawless, easy setup and a plethora of options and settings to dial them in

Excellent little dude

Wanted something reliable, configurable, easy to implement with Home Assistant. Got exactly that. These things report more sensors into HA than I even know what to do with, and are so fully configurable I had to have Claude help me do it. ^_^ But now I've got fairly faultless presence and motion detection in two rooms and, importantly, all the sensor specificity to tell apart what I need to tell apart, and room-level calibration that works for the type of presence and contours of the room I'm working with.

Msr-2

My sensors arrived well packaged and I immediately put them to good use in the living room and kitchen of my house. Using a Home Assistant automation I wrote to trigger the onboard led, I was able to quickly calibrate the three detection zones. So far so good.