Cellular Edition customers have been asking for it, now it's available. Our latest generation Cellular Edition, the CELL300 has double the battery life of its predecessor, so when they're in the field, a remote site, a car, RV or truck, customers can continue to monitor the temperature of their equipment, property, pets, products or medical supplies without interruption for up to four weeks. And for locations where power outages are a problem, AC Power Sensing can let customers know when the power goes out, giving them advanced warning of potential temperature problems.