The innovativeAshcroft®DXLdp low differential pressure transmitter delivers unprecedented reliability for critical airflow, room pressure, and air handler applications. Equipped with the exclusive Ashcroft® SpoolCal™ option, this transmitter can be validated, zeroed and calibrated while on line, without ever having to disconnect the pressure tubing. Diagnostic indicator lights and easily accessible test jacks enhance the ease of testing while DIN rail mounting makes installation a “snap”. Simple installation, low maintenance and easy validation add up to significantly reduced costs of operation.