Basic Info.

Product Description

Features: pocket fetal doppler mainly applies to detect the fetal heartbeat rate from the twelfth week; lcd can display fhr, synchronous fhr signal, battery indicator, volume of sound and alarm indicator accurately; built-in rechargeable battery can work continuously more than 5 hours; blue backlight lcd display for use conveniently at night; automatic power off ( one minute), self-detect function, and alarm function when fhr is out of the normal range or battery power is in shortage; only 270g, can be carried conveniently with a gallus; built-in speaker and collocated with earphone jack; 2.0mhz probe. specifications: executive standard: en61266:1995 ultrasonic frequency: 2.0mhz±10% ultrasonic intensity: =10mw/cm2 comprehensive sensitivity: =90db fhr range: 60--210bpm(±2bpm) fhr alarm range: =100bpm or =160bpm isptp: =0.1mpa battery: 9v dry battery (optional for 9vni-mh rechargeable batteries and charger) maximum audio output intensity: =1w doppler frequency: 100--3000hz static continuous working time: =2h automatic dormancy time limit:1 minute working temperature: 10-40? humidity: =80% atmospheric pressure: 86--106kpa