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

Works well if used with the right settings and application.

I have three of these. I use them in our cars as arrival and departure sensors for our Smartthings system. 1. The pairing works great. 2. Detection is also great. 3. Overall, they work great except the battery life. I need to change the battery about every month. I came up with a workaround by buying https://www.amazon.com/gp/product/B076C7S2VN/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1. 1. Strip the two wires on this battery holder about 3/4 inch. 2. Open up the presence sensor, pull out the sensor device and remove the small round battery. 3. Loop the positive and negative wires from the battery holder onto the positive and negative wires/brackets on the presence sensors. Twist to tighten the wire. Then solder the connection. 4. Put the lid back on the presence sensor--you will have to force it. 5. I also zipp-tied the sensor on top of the battery holder. I then place this in the car. With this approach, you will not have to change the battery for about a year.--that is an estimate at this point. And the batteries are now AA which cost less. Some complain about zigbee connection to the smarthings hub. The fix for this is to have a zigbee repeater in your garage or close to your driveway (for me that is our dining room). For example, buy a smarthings plug https://www.amazon.com/Samsung-SmartThings-Outlet-GP-U999SJVLDAA-Smart/dp/B07F96JB63/ref=sxts_b2b_sx_reorder?cv_ct_cx=smartthings&dchild=1&keywords=smartthings&pd_rd_i=B07F96JB63&pd_rd_r=1dac1916-534b-4f17-8bae-b1383cd78750&pd_rd_w=wCQtr&pd_rd_wg=KHHZi&pf_rd_p=e3453390-8188-4ed9-a1b3-46cb747551ce&pf_rd_r=MVE9YY02DB2W9JH0Z211&qid=1594417223&s=hi&sr=1-1-f5ebfd8e-82c1-4b4e-97d5-2aa47aa18b69. This will solve any connection issues.

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.

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.

I really wanted to like these. The concept is great but the execution is awful. I have 50+ smart home devices of various types from various manufacturers including Smartthings, Lutron, Logitech Harmony, Wemo, Hue, Ring, Blink, etc and this is the worst device by a wide margin. As an engineer, I simply could not imagine releasing a product that is this half-baked. The electronics are very simple- an SoC, some passives, a button, an LED, and a battery, pretty much. How this simple of a design can be so screwed up is a complete mystery. I have purchased 8 of these and only 2 of them (presumably) still work- my parents have them for when they come in town so it's possible that those two don't either. Here's what to expect. When you get it, pairing is simple and reliable, but that's where the fun stops. They work intermittently despite the fact that I have many Zigbee devices and the door and key stand is right next to the hub. Once the battery goes dead, the real nightmare begins. The battery retention mechanism was apparently designed by an ape on psychedelic drugs so changing the battery without destroying it is quite a challenge. Once the new battery is installed, the device will most likely still not communicate to the hub. Now comes the simple process of removing the device from all the apps that you have it linked to, removing it from the hub, repairing it, adding it back into the apps, then you're back to the terrible performance you will be used to at this point. Expect them to last about 6 months until they completely quit working. Failure modes range from no longer talking to the hub at all to the battery heating up to dangerous levels once installed.