Single-jet, vane wheel, dry-dial water meter (Best small with eight number wheels) Magnetic drive, Resistance ... to ISO 4064 class B standard.Working condition:--Water temperature: 0.1°C~40°C--Water pressure : ≤1.0Mpa main technical specificationsTypeSize (mm ... -15M15B3.01.5120300.000199,999LXDG-20M20B5.02.5200500.000199,999 water meter