UltraCrab Indoor Pet Barrier Transmitter Accessory, Adjustable 0.61–3.7 m Boundary

UltraCrab is a transmitter accessory for a wireless indoor pet barrier, creating an adjustable off-limits boundary from 2 to 12 feet in diameter.

• Beeps followed by progressive static correction when a collared pet enters the boundary — provides an alert and correction sequence.
• Additional barriers can be placed in other areas — lets you set more than one off-limits zone.
• Additional receiver collars support an unlimited number of pets in the system — useful for multi-pet homes.
• The transmitter uses a 5V power supply and can also be powered by a power bank or vehicle cigarette lighter — supports different power locations.
• The receiver has a built-in rechargeable battery rated for 1,000 recharges — provides a rechargeable power source for the collar.

Use the UltraCrab barrier to mark places you want a pet to avoid, such as a kitchen counter, shoe rack, sofa, or meat. The transmitter creates a wireless boundary rather than a physical gate, helping define indoor areas without blocking the room. It is intended to work with a pet wearing the system’s receiver collar; the transmitter accessory by itself does not deliver the collar’s alerts or correction.

What happens when a pet enters the boundary?

When a pet wearing the receiver collar enters the set area, the system sounds a series of beeps, followed by progressive static correction intended not to cause harm. The audible alert comes first, giving the pet a signal to move away before the correction phase.

• The collar must be worn for the alert and correction sequence to work.
• The correction is progressive rather than a single immediate step.

How large an area can the transmitter cover?

The adjustable boundary ranges from 2 to 12 feet in diameter. Use the range button to set the zone for the space you want to keep off limits; the transmitter also has a Turbo Switch to enlarge the boundary across that range.

• Designed for defining specific areas inside the home.
• One transmitter sets a boundary; additional barriers can create zones elsewhere.

What is included, and how is the system powered?

This is the transmitter accessory for the dog fence system, not a complete physical gate. A pet must wear the system’s receiver collar for the boundary alerts and correction to function. The transmitter runs from a 5V power supply, and it can also be powered by a power bank or a vehicle cigarette lighter for use away from a standard power location. The receiver’s built-in battery can be recharged 1,000 times.

• Transmitter power options include a power bank and vehicle cigarette lighter.
• The rechargeable battery is built into the receiver.

Can the system protect more than one area or pet?

Yes. Add barriers in the other places you want to define, and add receiver collars for additional pets. With additional collars, the system supports an unlimited number of pets.

• Place additional barriers where separate off-limits zones are needed.
• Each pet needs to wear a receiver collar to receive the system’s signals.

UltraCrab suits pet owners who want adjustable wireless indoor boundaries around specific household areas, including homes with several pets or multiple zones to manage. It is a transmitter accessory for use with the system’s receiver collar, rather than a standalone physical gate.