These are ready-to-go indicator systems that are available in all eight colours. You get a head with weight, magnetic hockey stick and TWO chains. The reason that the kits are supplied with two chains is so that you can use your indicators with any type of conventional bite alarm. The chains with short steel extensions are suitable for Delkim-sized alarms, whereas the chains with long extensions are for smaller, Neville-type alarms.
These kits represent real value for money because they contain everything apart from isotopes, which are available separately.
The only question is, which colour will you go for??
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