Features: 1) High resolution thermal printing array system 2) High frequency response reach to 150Hz 3) Capable of printing continuous one channel trace and annotations including lead mark and such parameters as sensitivity, paper speed, and filter operation status 4) High resolutioin digital filter inhibits baseline drift without distorting ECG wave-form 5) One-touch operation able to enhance efficiency and relieve operating strain 6) Concept of floating input circuit meets IEC safety standard 7) Visual status due to light indicated touch-keys 8) Rechargeable battery supporting more than 50 patient examinations 9) Power off automatically after 5 minutes non-operation 10) Under the automatic mode, pressing key "MODE" continuously can keep recording when abnormal lead is found Packaging Carton box Delivery lead time 15 days Minimum order 1pc