F-TOP-1553 series of linear valve position feedback device has obtained the EU 2014/34 / EU ATEX explosion-proof certification, certificate number ATEC.0006; F-TOP-1553 is a linear valve feedback device, which has feedback, Three-segment lamp display, valve leakage prevention, valve position user can be calibrated on site, analog signal output 4-20mA PNP DC24V;