Transmiter/Receiver for bite alarms

[tjnorton]

I have a set of du sundridge optomics. 3 heads and receiver. Paid £70 new take 12v batteris only changed them all once in 2 years.

They have been fished from -3oc to 28oc no problems with freezing after rain either. Also have a great night light.

tj

[chazyboi]

tj i was going to get a set if you buy the set of three can you add a 4th alarm to a set of three ?? or do you have to upgrade the lot

[tjnorton]

Upgrade the lot I'm afraid. There is only 3 lights in the the receiver.

tj