Features:

• Dimensions:
• Main body: 75 mm L× 128 mm H×26 mm D
• Probe: 27.8 mm L×160.25 mm H× 27.8 mm D
• Weight (main body with probe): 190 g
• Display type: Mono LCD
• Waterproof probe:IPX7
• Heart rate range: 50~240 bmp
• FHR accuracy: ±2%
• Ultrasound frequency: 3 MHz
• Ultrasound intensity: <10 m W/
• Audio output: 1.2 W (speaker) & 5 mm phone jack
• Sensitivity: From 10 ~ 12 weeks.
• Auto shut-off: sound mute )1 min(, power off )5 min(
• Power: 1.5V battery×2 (type: AA)
• Battery life: 280 min