Description Overview: 1）2.5 Mhz Waterproof probe High sensitivity of the probe, 12~16weeks can hear fetal heartbeat. 2）LCD digital screen Light screen, the digital display is clearer. 3) Two model shows Press the left button, switch two model shows. 4）No radiation After tested, seldom no radiation. 5）Turn off automatically No operation automatically turn down within 60S. Specification: Probe frequency 2.5 MHz plusmn10% Error range plusmn 2bpm Rate display range 30-240bpm Validity period 5 years Size 130mm (L)*100mm（W) *36mm(H) weight 250g Battery 2*AA ( battery wonrsquot send ) Packing Content: 1*Monitor
