M&B Systems is a Industrial Refrigeration Control Systems contractor. We design, program and install refrigeration control systems for Cold Storage, Pharmaceutical, and Food Procesing industries. We use ISAC microprocessor controllers located Northern California. These microprocessors use Opto 22 I/O and we use the finest in sensor technology for temperature, pressure, gas detection, humidity, and vfd speed control. M&B has 25 years of experience in industrial and refrigeration control. We also use Allen Bradley SLC 500 and Micrologix 1500 series controllers.We have custon designed controllers for bread cooling, cookie production cooling, food plant waste water control, cold storage coolers and freezers, machine room control (Frick, Mycom, M&M, Fes, Sabro), and pharmaceutical incubators and cold rooms in Puerto Rico.