Profile: Gilchrist Technology, Inc. specializes in vibration monitoring products and services. Our product line includes vibration monitors, vibration sensors, vibration transmitters & signal conditioners, vibration meters & shakers, reciprocation compressor transmitter, portable shakers and accelerometers. We offer 3501 acceleration, 3502 velocity, 3503 radial, 3504 axial position, 3506 temperature and 3508 speed transmitter. Our model 3501 is designed to be used with accelerometers that have internal electronics and requires 3 to 5 mA of excitation current.