Brand: ALPK2
Origin: Japan

Model: K2-920
Operating principle: Oscillomelfic method
Pressure Indicating Range: 0 to 300 mmHg (cuff pressure)
Accuracy: ±3 mmHg (cuff pressure). ±5% of reading (pulse rate)
Power Supply: Two 1.5 volt AAA alkaline (LR03) type batteries
Coverage wrist circumference: Approx. 12.5 to 22.5 cm
Size : Approx. 64.0 x 88.0 x 26.4 mm (H x W x 0), not including the cuff
Weight: Approx. 100 g (without batteries)