Answer: You can have 50 geo-fences for each GPS vehicle tracking device and 50 global geo-fences per account. Each geo-fence is square and centered around an address that you specify.
1 Almost everyone experiences a muscle cramp at some time in their life. 2  There are a variety of types and causes of muscle cramps. 3  Numerous medicines can cause muscle cramps. 4  Most muscle cramps can be stopped if the muscle can be stretched.
A sudden contraction, usually of the calf muscles, causes sharp pain that can last anywhere from a few seconds to 10 minutes. While leg cramps can be prevented, you can relieve an acute leg cramp with prompt movement and massage. This article will tell you how to relieve leg cramps.