Dogtra 640c Tom Davis Edition

Product code: VWR808

Product information

Advanced simplicity is what we strived for with the Dogtra 640C Tom Davis Edition e-collar, offering all the key essentials for dog training in an ultra-compact unit without sacrificing the benefits of a remote training tool. This is the perfect remote training tool for basic obedience or field training where you need a reduced size receiver/collar for a smaller dog. It is designed for dogs as small as 5 kg.

The 640C Tom Davis Edition e-collar is packaged with the smallest ultra-compact receiver from Dogtra that offers low-mid stimulation from 0-127 levels at your fingertips. The 0-127 stimulation level is controlled by a Rheostat Dial, a patented technology from Dogtra to ensure a precise setting for every dog.


This unit has been tested and has received a waterproof rating of IPX9K. The Ingress Protection (IP) rating classifies the level of protection provided by the exterior casing and electrical enclosures against a variety of elements. Dogtra's IPX9K rating has been specifically tested for waterproof protection. This unit was tested at close range using powerful water jets with high pressure and high temperature over various points.

Key Features:

Nick/Continuous Nick stimulation
• HPP (High Performance Pager) vibration
• Constant stimulation with customizable Boost button
for instant level increase
• BUNGEE COLLAR with a Cordloc 194 for easy use and
secure custom sizing
• 127-level stimulation with Rheostat Dial and LCD screen
for precise control
• IPX9K waterproof certified
• For dogs with 30cm+ neck size
• For dogs as small as 5 kg.
• Medium output receiver
• Compact receiver with enhanced contact points
• Checkered grip on handheld transmitter
• Safety Stimulation Level Lock
• Customizable Boosted Constant Button

Technical specifications

Product Code VWR808

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Customer reviews

(3 Customer reviews)
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V Good Product

The Product itself is almost perfect - however I've had to design and print a 'cover' for the lock mechanism. This feature is enabled and disabled with a single depression of the On/Off switch. In my opinion it should be harder to turn the auto lock off - several times I've found the auto lock off and my desired level of 'Nick' had increased.

The one area that I think the organisation should review is the KPI's with their preferred distributor - FedEx. Their performance was abysmal.

Rob Morgan | Redditch | February 2024

Great product, great customer service. Verified Purchase

I have been looking into remote collars for a long time and after a lot of research, I opted for the Tom Davis edition due to the extra features.

I really like the lock setting feature as I'm not worried about accidentally catching the dial and increasing the stim, the boost feature is also a great addition in high-distraction recall situations. We are still in the conditioning phase and already seeing improvements to my dog's off-lead recall!

Great service from Von Wolf - ordered on a Friday afternoon and received the order the following Tuesday!

Alistair Glaves | Sheffield | November 2023

Loving my Tom Davis collar Verified Purchase

Absolutely brilliant collar I am in love with it. The pager is way more powerful than the arc 800 which is still a great collar but my dog never responded to the vibrate on that one. I love the more colourful design too and the boost is nice and easy to use so will get your dog back if he thinks about ignoring you. Couldn't be more happy, so glad vonwolf got these in, didn't think they would be sold over here.

Martine Evans | birmingham | October 2023