What humidity range can a YSM cabinet hold?

The YSM series spans 1–60% RH across its three grades: A holds 20–60% RH, B holds 10–20% RH and C holds 1–10% RH. Every grade is available across the full capacity range, so a 100 L bench unit and a 1430 L production cabinet can be specified to the same humidity window. Control accuracy is ≤ ±3% RH, and the display covers 0–99% RH. Temperature is displayed over −9 to 99 °C to ±1 °C but is not actively controlled — these are humidity cabinets.