... and analog current etc. Features:The electromagnetic flowmeter is a kind of measuring instrument based on Faraday law of ... isolation protection,can absorb 250mA current and withstanding 35V voltage(Not isolated with pulse output)Digital communicationsRS232,RS485,HART( ... ,Tongjia Industrial Park,Changzhou,Jiangsu Prov.,ChinaWebsite:www.qf-meter.comSkype:vicky_china68 Tel:+86-519-85327611 Fax:+86-519- ...