Description
R12m lightweight dog fence collar – For Small Dogs
The R12m is a lightweight, waterproof micro dog fence collar designed for small dogs. It delivers a gentle audible warning and adjustable correction as your pet approaches the underground boundary, helping them learn the safe garden area quickly and confidently. Compatible with all DogFence systems and perfect as a replacement or additional collar.
The R12m lightweight dog fence collar is our lightest and most compact receiver—designed specifically for small dogs, nervous dogs and confident cats who need freedom without compromising safety. If you’re looking for a reliable DIY dog fence collar UK pet owners trust, the R12m delivers outstanding comfort, waterproofing and long-term durability.
Engineered exclusively for DogFence underground containment systems, this mini receiver offers precision, safety and exceptional battery life in a pet-friendly, easy-to-wear design.
Key Benefits of the R12m Small Dog Fence Collar
- Ultra-lightweight design for small dogs, nervous dogs and cats
- Fully waterproof for fresh and salt water use
- Adjustable, humane training levels for sensitive pets
- Anti-linger and 15-second safety shutdown for battery protection
- 6-month typical battery life
- Compatible with all DogFence underground systems
- Durable casing and secure adjustable strap

Gentle DogFence training with the R12m small collar helps even sensitive small dogs enjoy safe garden freedom.
⭐ Why Choose the R12m Collar?
Ultra-Lightweight & Pet-Friendly
At just a few grams, the R12m small dog fence collar is comfortable enough for small breeds and cats to wear all day. Its low-profile design won’t interfere with movement, play or rest—perfect for petite dogs or sensitive pets.
Fully Waterproof – Fresh & Salt Water
The R12m micro dog fence collar is waterproof to 10 feet, making it ideal for pets who love puddles, rain, baths and even ocean dips. It continues to perform reliably in all weather conditions.
⚙️ Fully Programmable for Temperament
Every pet is different. The R12m lightweight dog fence collar offers multiple adjustable training levels, allowing you to customise gentle, consistent and humane correction suitable for your dog or cat’s temperament.
Longest Battery Life in the Industry
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- 6-month typical battery life
- Anti-linger mode to prevent unnecessary drain
- 15-second safety shutdown in the avoidance zone
- Instant restart when your pet returns to the safe area
How the R12m Micro Dog Fence Collar Works
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- Approach: When your dog or cat nears the underground boundary wire, the collar picks up the FM signal.
- Warning Tone: The R12m alerts your pet with a gentle audible warning to encourage them to stop.
- Safe Correction: If they continue, a light, adjustable correction helps guide them back into the safe zone.
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Most pets understand the boundary within just a few days of short, positive training sessions.
Built Strong for Everyday Use
The R12m includes a durable casing, reliable strap, and robust contact posts designed for active lifestyles. Perfect for adventurous small dogs and outdoor-loving cats.
✔ Compatible with All DogFence Systems
This collar works seamlessly with every DogFence underground dog fence, making it the ideal replacement collar or an extra receiver for multi-pet households.
⭐ What’s Included?
- R12m Small Dog Fence Collar
- Adjustable strap
- Contact posts
- Battery (approx. 6 months life)
- 2-year manufacturer warranty
⭐ Who Is the R12m Ideal For?
- Small dogs (chihuahuas, terriers, dachshunds, Bichons)
- Nervous dogs who need lightweight equipment
- Cats who use a DogFence containment system
- Multi-pet homes needing an additional or replacement collar
⭐ Safe, Reliable & Trusted Worldwide
With over 30 years of engineering, field testing and real-world pet use, the R12m offers unmatched safety, waterproofing and performance. It gives your pet freedom—while keeping them safely within their boundary.
FAQ’s
Is the R12m safe for small dogs and cats?
Yes — it has adjustable training levels and advanced safety features including a 15-second shutdown and anti-linger protection.
Is the R12m waterproof?
Completely. It is waterproof to 10 feet and safe for fresh and salt water.
How long does the battery last?
Around 6 months for typical daily use.
Can this collar be used with all DogFence systems?
Yes — the R12m is compatible with all DogFence underground systems.
Is this collar suitable for nervous pets?
Yes — its lightweight design makes it ideal for sensitive or smaller pets.
Give your pet freedom and safety today with the R12m micro dog fence collar.
The R12m micro dog fence collar gives your dog or cat freedom to explore—while keeping them safely within the garden boundary. It’s the perfect lightweight upgrade for small pets using a DogFence system.











