Samsung Electronics F-ARR-US-2 SmartThings Arrival Sensor

That thing is battery vampire ! Horrible. Also there is unpredictable behavior. Sometimes sensor is detected, I do not know for 7 days in row and then you have notification of intrusion.

Jury is out on this one....VERY disappointingly it seems these can NOT be used to set/unset alarms etc (ie when walking into/out of a building) which would be the most logical use.- they have been described as being used for PROXIMITY 'tracking' ie if someone (eg elderly/child/pet) walks out of a 'zone' (eg your wifi range) it will trigger a response eg alarm/email etc so in this example could be useful.Samsung seems to have missed the most obvious uses for this one. shame.

It quick to connect and then it keeps telling me in the app that it’s out whilst looking at it on the table. Worked fine new and with the original software It since updated hub software it’s a waste of a money

It's only £25 if you pay it somewhere else

In theory it would be great. Good size - appears robust. Problem is it does not work. For the price and given it also needs a hub I expect more. Pairing it is hit or miss even when it is sat on the hub. Once paired it disconnects with so much regularity it is useless especially given what it is for. Apparently I have left even if the sensor is on top of the hub. It does not stand a chance in a house with walls! Don’t waste your cash

Great sensor, works good. In my case when I leave about 40-50 meeters from the house it turns off lights and locks the door lock. When I come close to the house (aprox 10 meeters) it opens locks and turns on lights. Now the bad things related to SmartThings App itself, sensor always in Arrive Mode, which means that once you are in the house and trying to lock door locks or turn off lights, the sensor will turn them on again instantly like you just came in, even you came home long time ago and didnt go out for a while. But its not sensor's problem its app's problem. And to fix thix you have to turn off Automation rules each time you get home which is quiet uncomfortable. SmartThings Team, please Fix this issue.

Works well if used with the right settings and application.

Se lo di a mi mamá ya que es una persona mayor y facilita mucho las rutinas automáticas sin que ella haga un esfuerzo en entender como funciona.La pila venia al 100%aveces tarda en re conectarse cuando llega a la casa pero muy pocas veces a pasado, casi siempre es enseguida cuando la reconoce al llegar a casa.

very slow are reacting to system

No funciona con el hud de alexa echo plus 2da generación, solo lo dectecta pero no sirve. se tiene que comprar el hub smartthings de Samsung.