SA Electronics Inc. wants to make water level measurement straightforward and efficient with its acoustic probes, the models 10A and 30A. With these microprocessor-based instruments, the operator simply enters well casing size and minimum distance. From there, the instruments use sound waves to determine water levels in seconds. Measurement data is displayed automatically in increments of 1.0 foot or 0.1 meter for model 10A, and in 0.1 foot or 0.1 meter for model 30A, on a large LCD readout. Users can record the water levels on a laptop or notebook computer and save the data for later printing and plotting. SA Electronics Inc.