Need GPS + Temperature monitoring system for 4000 chest Freezers Best Regards Attique Ahmad Manager Development - AD Pak Elektron Limited (PEL), 14km, Ferozepur Road, Lahore -54760, Pakistan Web: Www. Pel. COM. Pk EL), 14km, Ferozepur Road, Lahore -54760, Pakistan Web: Www. Pel. COM. Pk Show More