The BL-H306U sphygmomanometer is designed for adult users with a cuff size of 23‑33 cm (8‑13 in). Before each measurement you should rest 5‑10 minutes, stay still, keep the arm at heart level and avoid food, alcohol or smoking. The device automatically powers off after one minute of inactivity.
Operation is performed with the START/STOP key, and measurement data are stored in memory (up to 48 sets). Battery life is about 300 measurements; replace the four AA alkaline cells when the low‑battery indicator appears. The unit works from 110 V AC, 60 Hz (11 W) or from the internal batteries, and can be stored between –20 °C and +60 °C. This manual is written in Chinese.
| Weight (including batteries) | ≈ 265 g |
|---|---|
| Battery type | 4 × AA alkaline |
| Battery life | ≈ 300 measurements |
| Operating temperature / humidity | +10 °C – +40 °C, 30‑85 % RH |
| Storage temperature | -20 °C – +60 °C |
| Power consumption | 11 W |
| Input voltage | 110 V AC, 60 Hz |
| Cuff size | 23‑33 cm (8‑13 in) |
About 300 measurements can be performed before the batteries need replacement.
Open the battery compartment, insert four AA alkaline batteries with correct polarity, and close the cover.
Use a cuff that fits a circumference of 23‑33 cm (8‑13 in).