Meriam Model # DGI0500 ±0.025% FS with full temp comp 2X/316SS compatible Modules are 2.3 L x 1.3 W x 2.6 D positive lock with spring steel latch Depress latch to release Electrical connections are PC board contacts to spring loaded receivers on base unit Sensor bay protection modules fill empty bays > Each Unit Includes Pressure Module Only MFT4000 NOT INCLUDED NIST Traceable Certificate Instruction Manual