IT191-VdS Part no.: 420252 as IT190-VdS, but additional: one relais output 230 V- switching power max. 2000 VA AC / 150 W DC- switching current max. 8 A 250 V AC, 5 A 30 V DC- switching voltage max. 250 V AC / 100 V DC one 230 V switching input (coupling relais) status indication with 15 multi color LEDs also available as fault reporting device and as OPC field device Options: Assembly option LTE (4G) external antenna embedded antenne ("Puck antenna") Accesories (not included in delivery): 9V block accumulator GSM antenna extension cable Temperature sensor Water sensor More information /downloads: Operation manual Documentation Downloads Pricelist (German)