The CEX is designed specifically to repel animals such as mice, rats, possums, rabbits and wallabies from houses, aviaries, food stores, warehouses and gardens.
The CEX. emits a range of sound frequencies from sonic (which people can hear) right up to ultrasonic (which the pests hear but humans can't).
The device has a series of settings depending on the pests being controlled. Larger animals such as possums, rabbits or wallabies are better controlled using a Medium or Loud setting which emits both types of frequencies (transonic).
The sounds project from the CEX.'s inbuilt speaker and is effective out to approximately 25m (sometimes more). An additional remote speaker (an optional extra) can be plugged into the CEX. thereby effectively creating two machines and doubling the area covered. The speaker can be placed up to 30m away from the base unit.
As the ultra sonic frequencies do not penetrate or go around solid objects (like walls or very dense shrubs) it is important to try to place the unit and speakers in a position to give a clear field of view of the area requiring protection. To best understand the properties of the ultrasonics think of a torch beam, solid objects in the torch's light create shadows. Likewise with ultrasonics, solid objects create a "sound shadow" and the effects are greatly reduced in the area behind the solid object.
Always try to place the unit (and speaker if applicable) at the same level as the animal you wish to repel, ie, for rabbits a couple of inches off the ground, wallabies perhaps a foot (30cm) off the ground, rats and mice - on the ground.
The CEX. is a 12v unit and comes with a 12v/240v adaptor so it can be operated off a standard 240v power outlet. If, however, you need to place the unit in a remote area a 12v battery connector can be supplied instead of the adaptor and the unit can run off a 12 volt battery.