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Posted

Hi

 

I have Rapala electronic scales, they are very good although it is difficult to get a true reading on the boat as they are quite sensitive. Still better than the cheap spring balance kind though. I paid around

Posted

Wow! - clicked your link and in under 2 mins I had bought a set!

 

Was pretty pleased with Martins ones on the Alderney trip. They dont really give you a choice like when using spring balances - just 1 figure.

 

Adam

Posted

Adam........how much P&P did they charge you?? I'm wondering whether the Mail order boys would be cheaper. (Not that I'm catching fish that warrant weighing by the way!!!!!!!!!)

Rich

Posted

Adam,

 

Don't forget "batteries not included"

 

Also, I have the same scales and they dont like getting wet - I need to check mine still work, but I am hoping the battery went flat/corroded ( after about 10 uses ).

 

 

Posted

Mmmmmmmmmmmm.....................you cant weigh a fish on a multimeter!!!!!

 

Rich

Yes, you can...

 

1. Measure the resistance (Rl, in Ohms) and the length (l, in mm) from Nose to Tail.

 

2. Measure the resistance (Rw, in Ohms) and the width (w, in mm) across the widest point.

 

3. The weight can then be calculated using the following formula -

 

(Rl^2 x l) x (πRw^2 x w)

------------------------ kg

sq root(l x w)

 

divide the result by 2.2 for lbs.

 

Taken from research notes published on the MAFF website - here.

 

Hope this helps.

Posted

Mr. Fish recorder

 

Can we now take it as we have the formula that we could all save a packet and buy cheap multimeter instead of expensive electronic scales biggrin.gifbiggrin.gif

 

I think we had better stop there before it gets to technical. I just want to go fishing not take a maths degree ph34r.gif

 

Martin

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