Model No.:YDT-SRF618D
Product Origin:China
Brand Name:Yidatai
Price Terms:FOB, CIF, CFR
Payment Terms:T/T in advance, L/C at sight
Certification:CE
Description:Features: 1) It is an advanced model with intellectual cancellation of erroneous FHR and transient FHR digital LCD display 2) Accurately detect FHR with digital LCD display and build-in speaker to hear sounds 3) Intellectual cancellation of erroneous FHR 4) Built-in rechargeable battery, automatic recharging safeguard 5) Charging once for over 6 hours, continuous working 6) Automatically power off if there are no signals of FHR received within 2 minutes to save energy