SMART 3-R 90-240 VAC R1234ze 0-5000 ppm 4-20 mA IRCrowconSMART 3-R 90-240 VAC R1234ze 0-5000 ppm 4-20 mA IRProduct codeS4644R1234ZE-220Product codeS4644R1234ZE-220Request a quotation