Profile: Hoffman Manufacturing, Inc. provides controlled environment chambers and growth chambers. Our product line includes controlled environment chambers, ovens, refrigerators & freezers, lab supplies, counting & plating systems, and moisture testers. The G800 moisture tester is an automatic moisture meter designed for the determination of moisture in a wide variety of crops. It has features such as automatic sample weighing, automatic temperature compensation and internal calibration for 16 commodities. Our combination refrigerators/freezers have isolated thermostat & compressor components within a vapor-proof enclosure. They have magnetic vinyl gaskets for positive door seal.