Home Analog Transducers Frequency Transducers Square Wave CR6621 AC Frequency Transducer - Square Wave - with 4~20mADC Output Catalog Files CR6600 Series Catalog Page Drawings CR6610-11-12-20-21-22 Step File CR6621 AC Frequency Transducers and Transmitters are designed to give a DC output that is proportional to an input frequency value. These devices are especially suited to multi-frequency applications. CR6621 Price: $168.69 SKUCR6621 Input range 0-100 Hz 0-500 Hz 0-5000 Hz Need a 24VDC Power Supply? Check out our CRPS Series! I have a 24VDC Power Supply CRPS24VDC-120 - ($94.98) CRPS24VDC-240 - ($105.20) NIST-CERTIFICATE OF CALIBRATION NIST Certification - ($75.00) - + Add to cart