Foetal Heart Beat Monitor Our range of digital volume foetal heart beat monitors is widely used in hospitals, medicals and clinics. These are offered at competitive prices and are available in the following sailent features and specifications: • Operating Probe frequency :2MHz for Obs.Gyne • Power:Mains and Battry operated • Speaker/Ear Phone facility • Indicate the heart beat • Voltage : 220 V AC 50 Hz • Frequency : 2 MHz • Input : 9 Volt DC • Battery : 1.2 AH 12 volt DC • Absorbed power : 9 volt DC • Audio output power : 4 Watts