We, Korea emt Co.,Ltd have impeller type electronic hot water meter and cold water meter. Those meters have LCD indicator both for local and remote. The size of water meters are 15mm,20mm,25mm and 32mm for hot & cold water. The major spec. Of meters are as followings; 1. Min. Max. Flowrate; -.15mm:40 liter/h~3.0 cubic meter/h -.20mm:60 liter/h~4.0 cubic meter/h -.25mm:80 liter/h~5.0 cubic meter/h -.32mm:100 liter/h~8.0 cubic meter/h 2. Max. Flowrate indicate unit:9999999.9 liter 3. Material of body: Brass or Stailless 4. Permissible working pressure:17.5 Kg/sq. Cm 5. Battery: DC 3.6 V Lithium,8 years life. 6. Remote indicator distance: Within 150 meters. 7. Communication connection: Option.