The SPOT units have several useful features. I got the got the following information from the SPOT website... http://www.findmespot.com/en/
My wife loves the idea of me having the SPOT. I can assure her I am OK when I don't have cell reception. She has a permanent favorite in her favorites she can click on when I'm out on an adventure so she can see where I'm at. I have a schedule that I use to send out the Checking-In. It's a peace of mind, especially when I have our son with me. When she found out I lost it she told me I couldn't go out again until I replaced it.SPECS
Height: 3.7”
Width: 2.6”
Thickness: 1.0”
Rating Temp: -22F to 140F
Operating Altitude: -328ft to +21,320ft
Battery: 3 AAA Energizer Lithium Ultimate 8X
Functions:
SOS / 911:
Use this function In the event of a life threatening or other critical emergency to notify emergency services of your GPS location and that you need assistance. The GEOS International Emergency Response Center alerts the appropriate agencies worldwide – for example contacting 9-1-1 responders in North America and 1-1-2 responders in Europe.
HOW IT WORKS:
Once activated, SPOT will acquire its exact coordinates from the GPS network, and send that location along with a distress message to the GEOS International Emergency Response Center every five minutes until cancelled or until the batteries are depleted. The Emergency Response Center notifies the appropriate emergency responders based on your GPS location and personal information – which may include local police, highway patrol, the Coast Guard, our country’s embassy or consulate, or other emergency search and rescue teams – as well as notifying your emergency contacts about the receipt of a distress signal.
Help:
In the event of a non-life threatening emergency, you can use this function to notify your personal contacts that you need assistance. Additional SPOT Assist services can be purchased and programmed to your Help button as well. When activated with SPOT Assist, the Help button will notify professional services either on the land or water. SPOT has partnered with national service providers to offer non-life threatening assistance.
HOW IT WORKS:
Once activated, SPOT acquires your location from the GPS network and routes it along with the HELP message through the SPOT satellite network every five minutes for one hour or until cancelled. Your contacts will receive an SMS text message including coordinates, or an email with a link to Google Maps™ showing your location.
Check-in/OK:
This feature allows you to let your friends and family know that all is OK with a pre-programmed message along with your GPS location. With a push of a button a message is sent via email or SMS to up to 10 pre-determined contacts and your waypoint is stored in your SPOT account for later reference. Your stored waypoints can be easily integrated into a SPOT Shared Page or SPOT Adventure account.
HOW IT WORKS:
Once you have activated your SPOT Messenger and set up your account, you can change your contacts and customize your message at any time. When you push the Check-in/OK button, you send one pre-programmed message to your contacts. Your contacts will receive an SMS text message including coordinates, or an email with a link to Google Maps™ showing your location.
Custom Message: This feature allows you to let your friends and family now receive a custom message along with your GPS location with a push of a button. Use this feature as a secondary OK message or transfer your personal help alert to this message function if you are using a SPOT Assist service on your Help button.
Custom Message
The Custom Message functions exactly like your Check-in/OK message You can also have access to your waypoints in your SPOT account so you can review your route at a later date. Or link your SPOT account to SPOT Adventures and save a map of your adventures using your SPOT waypoints, and enhance the story with photos and a blog.
HOW IT WORKS:
Once you have activated your SPOT Messenger and set up your account, you can change your contacts and customize your message at any time. When you push the Check-in/OK button, you send one pre-programmed message to your contacts. Your contacts will receive an SMS text message including coordinates, or an email with a link to Google Maps™ showing your location.
Track Progress:
This feature allows you to send and save your location and allow contacts to track your progress in near real time using Google Maps. With your SPOT account you have the ability to set up a SPOT Shared Page which allows you to show your SPOT GPS locations to others on a Google Map.
HOW IT WORKS:
Once activated, SPOT acquires and sends your GPS coordinates to your SPOT account automatically every 10 minutes for 24 hours or until canceled. SPOT tracking must be reengaged to continue. Creating a SPOT Shared Page allows you to share your GPS route with your friends and family easily in near real time on the web through a personal link. You can make your Shared Page private or public. Your choice! Just share that url with your friends and family and they can easily track your adventures. You can also link your SPOT Messenger to SPOT Adventures, a social portal, where you can set up a profile and blog with others sharing their SPOT adventures.
The Old SPOT was nice but as Cruiserlarry has mentioned in other threads on the website it was a little confusing at times. The Old SPOT also had an issue with falling off what you hung it on. The clip on the back was a lot like a knife clip. So when I took that slide down the slope of Tahquitz it was stripped from the strap it was attached to on my backpack. The SPOT 2 is more compact and iis more user friendly. The SOS/911 button and HELP button have a safety cover over them so you can't accidentally bump them. Here's a picture of the Old SPOT...
The SPOT 2 gives you several options for for attaching the unit to your person and gear. There's an arm band, belt loop. carrabiner, and Velcro. Here is what I got in the package when I received my SPOT 2.