stepper motor counter,ANDELI-A61

technical characteristics:   
Work voltage: 3V-6V；
DC impedance: 450Ω?0Ω/20癈；
Applicable pulse width: 50ms-600ms；
Applicable frequency: ≤4HZ
Deferent moment: 57礜m/4.5V
Work temperature -35癈-+70癈
  Use life pulse exceed a hundred million times (more ten years)
Antimagnetic
capability: Accord GB/T17215 standard request
Other technical condition: Accord JB5459-91 standard request
Applicable ammeter constant: 800/1600/3200imp/kwh