Product Data SheetInstallation Manual The RFM-MB1 is a wired M-BUS module suitable for the consumption data transmission and applicable to the single jet GSD8-RFM.Easy to install and configure, in addition to the current consumption and up to 12 months of historical values, it can detect several fraud attempts against the meters, the prolonged functioning at the maximum flow rate (Q4) and a potential water loss downstream the meter.TRANSMISSION PROTOCOL Wired MBUS EN13757-2/3POWER SUPPLY Bus power supply (+ 3V backup Lithium Battery)BATTERY LIFE Without Bus power supply: 1 year*MEASURE SENSIBILITY 1 literDIMENSIONS AND WEIGHT 20 x 67 x 67 mm 73 gCABLE LENGTH 2 metersSIGNAL COVERAGE Linked to the M-BUS MasterWORKING TEMPERATURE from +1°C to +55°CPROTECTION CLASS IP65TRANSMITTED DATA Volume (consumption), AlarmsALARMS Discharged battery, Module removal, Magnetic fraud attempt ,prolonged functioning at Max flow rate, excessive back flow, potential leakage detection* Under ideal environmental conditions