Non Digital Foetal Heart Beat Monitor We offer a wide range of None Digital foetal heart beat monitor, which 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 VDC • Battery : 1.2 AH 12 volt DC • Absorbed power : 9 volt DC • Audio output power : 4 Watts