Toggle between Coarse (0) and Fine (1) adjustment modes. F002: Set the output range (e.g., 0-10V, 4-20mA, or 2-10V).
Supports three-way power: external DC (15-30V), Micro USB (5V), or an internal 3.7V 1000mAh lithium battery. js-visg-m-s manual
A particularly useful diagram shows – the device passes light in one direction but attenuates backward light by ~30 dB, protecting upstream components like laser diodes. Toggle between Coarse (0) and Fine (1) adjustment modes