Il prodotto è molto più che perfetto. L'unica spesa accessoria è quella riguardante l'abbonamento della scheda SIM. Il montaggio è semplicissimo, ci sono anche l'adattatore ed il relè. Il dispositivo è piccolo e facile da nascondere ma, soprattutto, con due semplici comandi via SMS, può essere localizzato via app in tempo reale senza pagare un euro! Ottimo è poco.

Used product ,with 2g specifications only

Yo mismo lo instalé en mi Auto, solo tuve que comprar un Chip en Telcel y quedó listo, solo tienes que conectar el cable negro a la tierra, el cable rojo a la corriente y el amarillo es remoto (como el de los equipos de sonidos). vale la pena adquirirlo, así sabrás donde está tu coche en caso de que te lo roben, sobre todo si tu coche es un clásico como el mío que lo cuido mucho

Delighted with it, works on 3 & 4 G so simple to use with or without app.well pleased

I never got this item to work in Canada.Basically, all the cell providers have retired 2G and will no longer support nor accept devices to connect. I am long past the return period.Take a chance with the 3G version but be aware that 3G will retire before you even know it.

Works really good. Only problem is the instructions to set it up are extremely poor and hard to follow. If they would just make simple instructions that people can understand i would have given this 5 stars. Also there is a lot of the commands that are not in the instructions at all and i had to fine them on google.

I purchased a pair of the ST-901 trackers after verifying my area would be covered by SpeedTalk mobile. I got them on a Friday, and activated the SIM cards I had bought at the same time. I verified each sim card using my cell phone, I was able to send/receive SMS and phone calls via the new sim. After that, I inserted each sim into its ST-901, powered them using an external power supply (12V) and set them outside. I could see both the blue and orange LEDs had gone solid, meaning both devices had a lock on the cell signal and the gps signal.I waited for 3 days like was recommended in another review. Unfortunately nothing happened, the devices would not respond to my text messages. In the area I live I can have trouble with signal with my Verizon phone while indoors, so I suspected the issue might be cellular signal. I live right on the northern edge of Metro Phoenix (Anthem), so I asked a friend who lives closer to downtown at Greenway and 35th ave if I plug them in at his house and continue waiting for activation.I put the devices into my truck, and powered them up using 12v, so they wouldn't be draining the internal battery during transport.I wasn't on the road more than 5 minutes before all the sudden my cell phone exploded with text messages, all the RCONF and 8030000 mobilenet text messages that I had sent were finally received! Yay!After that, I turned around, brought them home and powered them back up with my external power supply. They do not get cell signal inside my garage, however they do get signal while sitting outside. So that is what prompted me to write this review.My two devices both behaved the same way at the same time. They both had signal since the start as I've been able to prove once they activated. There was sufficient signal outside my home. It seems the trick was to take them for a ride, and get the GPS receiver to notice that "Hey, I'm moving". That appears to be a trigger to get the device to wake up and attempt to use the cellular radio. Both had replied to my original text messages at the same time, while driving.For those of you struggling with activation, it's worth a try. Just take them for a ride, powered up using an external power supply if you can. I am buying more, and plan to test this again.Beyond that, I was able to get a consolidated account created for both devices with the username of my choice. Support was responsive and helpful in that regard.Finally, these can be a bit power hungry. I hooked my amp meter to one after it activated, to see what the draw was. On standby it pulled 0.025A @ 14.25V, and when it 'chirped', it would pull up to 0.06A @ 14.25v. So if you are installing these into something like a UTV or motorcycle, be sure to use a trickle charger of some sort.Edit 2/14/2020I purchased two more, one to use immediately and one as a backup. I went through the same procedure as before, activating the sim card and then testing it with my phone. After that, I inserted the SIM into the tracker and took it for a drive while powered via an external power source. Again, I was only on the road for maybe 5 minutes, before the device replied to my '8030000 mobilenet' text message. It had been less than an hour since I had setup the new SIM card with SpeedTalk.I definitely recommend taking it for a ride during initial activation. It will be much quicker.