High performance optical sensor reduces nuisance alarms which are generally associated with ionisation technology. Suitable for caravans, trailers, or rooms in your home. Senses slow-smouldering fires9V replaceable battery includedCertified to BS EN 14604: 20053 year warrantyNCC (national Caravan Council) Approved - Approval number NCCSA029
Best Price: £12.00 from Ultimate Outdoors