New House
Llangwm
Usk
Monmothshire
NP15 1HJ
United Kingdom

tel: +44 (0)1291 650 279

fax: +44 (0)8704 868 450

e-mail: celtic@electro.co.uk

R&D and Manufacturing

11 Cowick Road
Exeter
Devon
EX2 9BE
United Kingdom

tel: +44 (0)1392 438 199

fax: +44 (0)8704 868 450

e-mail: celtic@electro.co.uk