The General Eastern P40250141 HumiTrac RH Transmitter features a number of innovations designed to deliver the user maximum performance and reliability, while providing the lowest cost of ownership available. The P40250141 HumiTrac features a NIST traceable sensor that can be quickly replaced in the field, eliminating the need for costly factory calibration. Other product enhancements include field-configurable outputs, full scale 0 to 100% RH measurement via a rugged, stable capacitive sensor and a two-year transmitter warranty.