Contatore acqua calda 4" DN100 stile Woltmann Helix. MID classe 2, opzione uscita impulsi
DN100 DIN Flanged PN16. Optional pulse output; the pulse is a reed switch output and the options are 1 pulse per 100 litres or 1 pulse per 1000 litres. Tamper evident wire lock security seal. OIML MID Class 2.