This dehumidifier from Hydrosorbent comes along with an inbuilt recharge indicator. The indicator is initially orange in colour, however it turns alone clear when it needs a reactivation. HVACLifehack.com is reader-supported. We may perhaps generate a Fee by way of goods procured making use of one-way links on this webpage. https://dstdehumidifiers.co.uk/case-studies/desiccant-dehumidifiers-in-cold-stores/