Purpose: It's a device for people with to monitor their blood glucose levels.
Reading: The meter displays the blood sugar level; in the image, it shows 5.8 mmol/L, which is within the normal range (3.9-5.6 mmol/L fasting).
Usage: A small blood sample is placed on a test strip, which is then inserted into the meter for a reading.
Features: It has a memory function, auto-coding, and likely provides averages over time.
Portability: These meters are compact and portable for convenient use anywhere.
Maintenance: Requires compatible test strips and lancets, and the battery may need replacing.
Model: GLM-79.