In-Ground Dog Fence System W-227B | Rechargeable Collar Receiver

Otmagelu W-227B In-Ground Pet Containment System with Rechargeable Collar

Keep your dog safely within your yard boundaries without the need for a visible fence. The Otmagelu W-227B In-Ground Dog Fence System uses a buried boundary wire and a lightweight, rechargeable receiver collar to gently guide your pet to stay within the area you define — up to 5,000 square meters (over 1.2 acres). It's one of the most reliable and cost-efficient pet containment solutions available for dog owners today.

When your dog approaches the buried wire boundary, the collar receiver first emits an audible warning beep. If your dog continues toward the boundary, the collar delivers a progressively escalating static correction, encouraging your pet to return to the safe zone. Dogs quickly learn to respect the boundary, staying happily within the space you've set. The system is entirely customizable and supports multiple collar receivers simultaneously.

Made in Mainland China.

Key Features

• Wide coverage: Supports up to 5,000 sq. meters (1.2+ acres) of boundary area
• Pulsed proportional stimulus: Correction level adjusts based on proximity to the boundary wire
• Progressive tone stimulus: Audible warning beep alerts your dog before correction begins
• Variable field width control: Customize the boundary width to suit your yard and pet
• Speed-detect anti-run-through: Prevents fast dogs from dashing through the boundary zone
• Audible & visual wire break indicators: Instantly alerts you if the boundary wire is damaged
• Built-in lightning protection: Transmitter is safeguarded against electrical surges
• Multiple collar operation: Works with additional receiver collars for multi-dog households
• Rechargeable collar receiver: USB rechargeable — no costly battery replacements needed
• Rainproof receiver collar: Designed to withstand outdoor weather conditions
• Universal adapter compatibility: Includes adapter for UK, US, EU, and AU plug types

What's in the Box

• 1 × Indoor wall-mounted transmitter
• 1 × Power plug (adapter region matched to shipping address)
• 1 or 2 × Adjustable rechargeable receiver collar(s)
• 1 × USB charging cable
• 1 × Boundary wire (300 meters)
• 2 × Extra metal contact points
• 20 × Training flags
• 1 × Test bulb
• 2 × Screws
• 1 × User's manual

Specifications

• Model: W-227B
• Color: Black
• Material: Plastic & Stainless Steel
• Coverage Range: Up to 5,000 sq. meters
• Target Pet: Dog
• Water Resistance: Rainproof receiver collar
• Battery: Included (rechargeable)
• Origin: Mainland China

Important Safety Guidelines

• This system is designed for dogs only.
• Do not allow the collar receiver to remain on your pet for more than 12 hours per day.
• Allow your dog to acclimate to wearing the collar before beginning boundary training.
• Always supervise use of the system, especially during the initial training period.
• Keep out of reach of children.
• Low battery may cause intermittent operation — ensure the collar is fully charged before use.
• Do not adjust settings while the collar is on your dog.
• Read the full user's manual before operating this product.

For guidance on responsible pet training and containment, visit the U.S. Consumer Product Safety Commission (CPSC) for general product safety information.

Frequently Asked Questions

Q: How does the Otmagelu W-227B in-ground dog fence system work?

A: A boundary wire is buried around the perimeter of the area you want your dog to stay within. The indoor transmitter sends a harmless radio signal through the wire. When your dog approaches the boundary, the rechargeable receiver collar first sounds a warning beep. If your dog continues closer, progressively escalating static corrections encourage them to return to the safe zone. Dogs quickly learn to stay within the established boundaries.

Q: How large of an area can the W-227B pet containment system cover?

A: The system supports a coverage area of up to 5,000 square meters — that's over 1.2 acres — making it suitable for most residential yards and larger properties. The 300-meter boundary wire included in the package provides ample coverage for the majority of home setups.

Q: Is the receiver collar waterproof?

A: The receiver collar is rainproof, meaning it can withstand standard outdoor weather conditions including rain. It is designed to hold up during your dog's everyday outdoor activities in the yard.

Q: Can the system be used with multiple dogs?

A: Yes. The W-227B supports multiple collar receivers operating on the same transmitter and boundary wire, making it ideal for multi-dog households. Additional receiver collars can be purchased separately.

Q: How is the receiver collar charged?

A: The receiver collar is rechargeable via a standard USB cable (included in the package), so there's no need to purchase replacement batteries. Simply connect the collar to any USB power source to charge it between uses.