supply of growth chambers growth chambers ( 3 units ) , growth chambers , technical specifications • unit should have double chamber each chamber which is individually controlled.and it should be suitable for the simulation of temperature and relative humidity values above freezing point. • chamber illumination with one fluorescent and one ultra violet tubes along with cyclic timer gives the user the flexibility to simulate day / night conditions inside the chamber. • double walled with inside of stainless steel and outside of mild steel duly powder coated. the instrument should have cfc free refrigeration with hermetically sealed compressor, controlled by bulls-eye micro- processor humidity & temp controller. • humidity ( rh ) range 40% to 90% with an accuracy of + or -3% • temperature range 5 0 c to 60 0 c with an accuracy of + or -10 c • menu driven 10 program memory • user friendly microprocessor design / operation • safety thermostat to prevent overheating. • audio visual alarm warnings of temp. & rh variation and low water level. • capacitance type humidity sensor for direct display of humidity in % rh. • centronics interface for keeping hard copy of temp., humidity, time & date. • nonvolatile memory for data storage: 512kb • rs 232 inter-face without printer. • high voltage safety cut off for unit protection. • double chamber each chamber size: 380 x 380 x 400 mm ( w x d x h ) , capacity: 60 ltrs ( minimum )