Fetal doppler

◆ HYZ-500B with a backlight LCD can display FHR, synchronous FHR signal, battery indicator, volume of sound and alarm indicator ; ◆ HYZ-500B can automatic keep in dormancy when no signal ; ◆ HYZ-500B have self-detect and alarm functions (when FHR is out of the normal range or battery power is not enough ) ; ◆ Only 300g, can be carried conveniently with a gallus ; ◆ Built-in speaker and collocated with earphone jack ; ◆ 2.0 MHz probe and easy to be replaced Specifications： FHR alarm range： ≤ 100 BPM or ≥ 160 BPM Battery：9.6 V Ni-MH rechargeable batteries Adapter input voltage： 220 V ± 10 % 50 Hz ± 1 Hz , (or AC 110 V ± 10 % 60 Hz ± 1 Hz ) Adapter output voltage：DC 12 V ± 1 V Maximum audio output intensity：≤ 1.0 W Automatic Dormancy time limit: ≥ 1 minute Static working time： BF-500B ≥ 4 H Normative collocation: charger, gallus, portable soft handbag, 60 g Gel. Packaging collocation: Single unit dimension:19.5 x 16.5 x 6.5 (cm); Gross Weight: 0.85 kg 20 pcs / carton dimension:44 x 36 x 42 (cm); Gross Weight: 18 kg