Counters track the reading of a device such as a laser machine. They’re available for clinics with the dermatology specialty.
Go to Settings → Processes → Counters and click New:

🔁 How readings are recorded
- In Settings → Procedures and Prices, turn on Pulses / Sessions and Require Counter for the procedures that use the device.
- When a session of that procedure is recorded, choose the Counter (filled in from the appointment’s room). The counter increases automatically by the session’s pulses, and the entry is linked to the session. Deleting the session removes it.