The signal can travel up to 50 meters in an unobstructed line of sight, or up to 30 meters within a building. The system uses the radio frequency 868mHz.
Thick walls can weaken the signal, similar to the effect on wireless routers or cordless phones. If the signal is weakened, a Clamp Cable Extension can be purchased. This 5-meter cable can be used to run through walls and bring the Sender closer to the Solar iBoost+. The extension can be easily plugged between the Clamp and Sender.