Have a 2 small safes (Chubb at home) as we have important documents and antiques.  
	I installed an alarm for the house a few years ago and now am trying to install a safe limpet.  
	elmdene e20 limpets I have bought these.  
	I fitted them on the safe. One safe works perfectly as it should the other safe randomly after 5min or 40min will cause an “alarm”/ circuit going active and then back to normal.  
	what is the problem here