Nako Na-617a User Manual -

From the normal time mode, press and hold the button, and then press the D button simultaneously.

Please read this manual thoroughly before operating the device to ensure optimal performance and safety. Nako Na-617a User Manual

A: The manual recommends a 15-minute warm-up period for precision models. Also, avoid air currents from HVAC vents. From the normal time mode, press and hold