meter counter 1,Ratio: 200:1. 2,Digits: 6+1. 3,Mainly export to India /Europe Marketing.Non-reversible 4,ISO9001:2008 meter counter Key technical index1. Pulse ratio : 100:1,200: 1,400:1 2. Start-up work voltage no greater than: 2.8v3.Normal working voltage: 3.5v to 5.5v4,Pulse width: 80 to 150ms5,Working temperature: Minus 20 to puls 606,Working fregueney: 4Hz7,Motor torque output: 50mNm8, ...