Aplab Limited produces 6½ Digit High Performance DMM, Model M3500A. The company Aplab Limited is an ISO 9001-2000 certified company. The product 6½ Digit High Performance DMM is known for its Stability, Speed and Accuracy. The product 6½ Digit High Performance DMM has a Noise Immunity of 6 ½ Digits. The Display of the is 5 x 7 dot matrix VFD, dual displays with three-color annunciators 6½ Digit High Performance DMM is provided with High Speed : Both sampling rate and data rate are at 2000 readings/sec. [at 4 ½ digit setting]. The Remote Interface of the 6½ Digit High Performance DMM is USB and GPIB which is optional.