No, seems I was right the first time. Checked the website, says it works on all wbx from 85 on.

http://www.vanistan.com/Vanistan/other_accessories.html

Alistair

> On Jun 13, 2014, at 9:04 PM, Karl Wolz <wolzphoto@q.com> wrote:
> 
> TCL's was an add-on to their complete TB. GW attaches to the existing unit. 
> 
> Karl Wolz
> Sent from my electronic umbilicus
> 
>> On Jun 13, 2014, at 8:10 PM, Alistair Bell <albell@shaw.ca> wrote:
>> 
>> I think tencentlife had a vacuum switch out before GW did. I thought about buying his but stalling as I don't plan keeping the wbx for too much longer.
>> 
>> Alistair
>> 
>> 
>> 
>>> On Jun 13, 2014, at 7:00 PM, Karl Wolz <wolzphoto@Q.COM> wrote:
>>> 
>>> Take a gander at GW's vacuum operated switch. Mine works quite well.
>>> 
>>> Karl Wolz
>>> Sent from my electronic umbilicus
>>> 
>>>> On Jun 13, 2014, at 6:49 PM, Dennis Haynes <d23haynes57@HOTMAIL.COM> wrote:
>>>> 
>>>> The TB currently on my van has become so worn that it is practically
>>>> impossible to set the TB switch and have it work consistently.