The devices have no pots nor switches, need no manual adjustments, and store calibration values, scaling, and units of measure in nonvolatile memory.

Additional features PC interface software that displays engineering unit current, peak, and valley and spread data; classifies limits; does real-time plotting; changes units of measure; selects signal filters; archives calibration history; saves data to disk; and stores test setup parameters.

S. Himmelstein and Co., 2490 Pembroke Ave., Hoffman Estates, IL 60169, (847) 843-3300,