Working Link; www.bing.com/search%3A%2F%2Fwww.dicksmith.com.au%2Fda%2Fbuy%2Fshoptheglobe-weigh-safe-universal-wsun-25cm-51cm-hitch-ball-with-51cm-08cm-clam-shell-61-269807486-au%2F%3Futm_source%3Dgoogle%26utm_medium%3Dproduct_listing_ads%26gclid%3Dcjwkcajwqvyfbhb7eiwaer786qhwjs-4egg0vdkf-lqs_icxpo1apopk&form=ANNTH1&refig=d5e6beb7eded4af5952e57002d85dd35

Unfortunately no references to towball guage.

There are no results for https://www.dicksmith.com.au/da/buy/shoptheglobe-weigh-safe-universal-wsun-25cm-51cm-hitch-ball-with-51cm-08cm-clam-shell-61-269807486-au/?utm_source=google&utm_medium=product_listing_ads&gclid=cjwkcajwqvyfbhb7eiwaer786qhwjs-4egg0vdkf-lqs_icxpo1apopk

The link worked OK for me too.

Interesting, but sold out & no price.

I wonder how it works & how accurate it is.

I assume that the 'spring' between the ball and the tongue is compressed by the ball weight & actuates the meter.  Accuracy & safety? are issues that come to mind for me.

Edit .. Had a second look & it said 'Low Stock' & priced at $270.  

gdayjr wrote:

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Came across this on the old interweb today.

 

 

 

Looks like you have been watching "Fast and Loud" too much.

I put all towball scales in the same category, useless peices of junk not worth spending money on.

There is far too much discussion about towball weights, there are more important weights to worry about as towball weight become irrevelent as soon as it is connected to the towing vehicle.

Gundog wrote:

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I put all towball scales in the same category, useless peices of junk not worth spending money on.

There is far too much discussion about towball weights, there are more important weights to worry about as towball weight become irrevelent as soon as it is connected to the towing vehicle.

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 "Useless pieces of junk..." Youve hit the nail on the head Graham.Way back,I bought several different brands in an effort to compare their accuracy against the "Bathroom scales" method,which is VERY accurate.Without fail,the purchased units gave false readings,sometimes to the point of stupidity.Not only were the readings inaccurate,but the difference in readings between different brands was also of concern.Highly inaccurate,without fail.Eventually I gave most of these units away to people I don't like,although there still is one example lying around  somewhere in my shed. "Useless pieces of junk".Cheers

yobarr wrote:

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Gundog wrote:

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I put all towball scales in the same category, useless peices of junk not worth spending money on.

There is far too much discussion about towball weights, there are more important weights to worry about as towball weight become irrevelent as soon as it is connected to the towing vehicle.

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 "Useless pieces of junk..." Youve hit the nail on the head Graham.Way back,I bought several different brands in an effort to compare their accuracy against the "Bathroom scales" method,which is VERY accurate.Without fail,the purchased units gave false readings,sometimes to the point of stupidity.Not only were the readings inaccurate,but the difference in readings between different brands was also of concern.Highly inaccurate,without fail.Eventually I gave most of these units away to people I don't like,although there still is one example lying around  somewhere in my shed. "Useless pieces of junk".Cheers

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 Well, all I can say is all those that say they are useless would actually be useless them selves if you were required to work in a quality assured company.

Not one of you has mentioned thet you tested them against a set of calibrated/certified scales. Unless you do your just having a good tug. And the bathroom scale system it a joke. At best a rough guide.

Sure we don't need to be precise, but I suggest you go back to the drawing board.

Bobdown wrote:

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gdayjr wrote:

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Gundog wrote:

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gdayjr wrote:

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Looks like you have been watching "Fast and Loud" too much.

I put all towball scales in the same category, useless peices of junk not worth spending money on.

There is far too much discussion about towball weights, there are more important weights to worry about as towball weight become irrevelent as soon as it is connected to the towing vehicle.

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 Well, the question was has anyone got experience with these? and that's the answer you give me? 

I will put that as a no then shall i ?

You might want to invest in a dictionary as well judging by the spelling in the reply.

Thanks for you opinion. 

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 A lot of caravan dealers use these Graham, I suppose they might need to be calibrated properly, but the dealer weighed mine and I did again on the weighbridge ......very similar.

Wouldn't be messing around with bathroom scales, they can be very ordinary results as well, at least that's what I tell the missus.

Cheers Bob

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"Again,on a weigh bridgevery similar" you say,but surely you would understand that  weighbridges generally weigh in increments of 20kg,so how can weights possibly be "very similar?".And I would be most surprised if any reputable caravan dealer would use this rubbish.Cheers

yobarr wrote:

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"Again,on a weigh bridgevery similar" you say,but surely you would understand that  weighbridges generally weigh in increments of 20kg,so how can weights possibly be "very similar?".And I would be most surprised if any reputable caravan dealer would use this rubbish.Cheers

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  Luxury RV in WA, major Retreat dealer in Perth, weighbridge was when fully loaded and at yard was full tanks etc but not loaded with personal items.

  Yobarr/Chris, you have stopped taking your Happy Pills again, haven't you?

  Cheers Bob

Bobdown wrote:

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yobarr wrote:

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"Again,on a weigh bridgevery similar" you say,but surely you would understand that  weighbridges generally weigh in increments of 20kg,so how can weights possibly be "very similar?".And I would be most surprised if any reputable caravan dealer would use this rubbish.Cheers

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  Luxury RV in WA, major Retreat dealer in Perth, weighbridge was when fully loaded and at yard was full tanks etc but not loaded with personal items.

  Yobarr/Chris, you have stopped taking your Happy Pills again, haven't you?

  Cheers Bob

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 Bob,you may like to learn that I am always happy,and noted for this among my many friends and associates.But thankyou for asking.Cheers.

P.S The first part of the post above seems to make no sense.Could you please elaborate ?

yobarr wrote:

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Bobdown wrote:

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yobarr wrote:

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"Again,on a weigh bridgevery similar" you say,but surely you would understand that  weighbridges generally weigh in increments of 20kg,so how can weights possibly be "very similar?".And I would be most surprised if any reputable caravan dealer would use this rubbish.Cheers

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  Luxury RV in WA, major Retreat dealer in Perth, weighbridge was when fully loaded and at yard was full tanks etc but not loaded with personal items.

  Yobarr/Chris, you have stopped taking your Happy Pills again, haven't you?

  Cheers Bob

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 Bob,you may like to learn that I am always happy,and noted for this among my many friends and associates.But thankyou for asking.Cheers.

P.S The first part of the post above seems to make no sense.Could you please elaborate ?

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       You seem to distrust what people say, if it is of a different opinion to yours Yobarr.

       My post makes perfect sense if you read it properly.

       The van was weighed with full water tanks, gas etc at Luxury RV by a towball scale.

       A week or so later, fully loaded with food and clothes and beer, we went over the weighbridge and the difference was the dealers plus 40 kg.

       Very happy with both readings. Stay happy.

       Cheers Bob

Couldn't agree more Graham. Well done.

Now, I'm not sure how I missed this thread but I did. Never mind because I don't get into P'ing comps.

To answer your question, I think and I'm no way an Xspert, I have one of what is in the attached pic and think it is what you are asking about?

I think it was 2018 or 19 I was pulled over at a weight checking point and all weights and measurements etc checked. It was like they were out to get me. Anyways, they had this gizmo like a fancy box on two wheels with digital screen and a tow ball set up. With the van off the car they put the tow ball under the van hitch to get tow ball weight. As no one was behind me I asked if I could see how accurate my fancy scale was, "no problem mate". Done the same way in the same spot etc, my fancy and very expensive scales showed 1kg heavier than theirs. Close enough for me. 

OH! All my weights were under their max's. I was confident anyway as I had not long before gone through a major weight checking process. 

Hi Graham.

I have not had any experience with that particular tow ball scale, I do feel it is a expensive bit of gear with one particular use only, we have a German made Reich digital scales for not that much more dollars that has multiple uses as it is a small flat platform scale.

I read where these scales are with in 3% accurate, police use them in Europe for roadside checking weights of RV type of vehicles, if you are shown to be overweight the police then take you to a certified weighbridge to be 100% sure of a conviction.

They do not weigh much ( a couple kilograms) our scale lives under the drivers seat, compared to a certified weighbridge weight  the scales weigh was very similar.

I forgot to mention, I don't have any science degrees.