Electrical Control Box£137.20 Robust micro processor controlled unit which provides accurate system test, in depth battery life check and sure firing. Electrical Control Box quantity — OR — Add to basket Category: Fire Extinguisher Spares Related products Add to basket E Sticker £1.84 Add to basket Bracket and Straps £13.80 Add to basket 8mm Push in Tee £5.00 Add to basket Bulkhead Fitting £4.60