PW-HPRP-03 Humidity Control System refill "maintain" PW-HPRP-03 is a refill pack for the PW-HPK-01 Humidity Control System.
PW-HPRP-03 is used to maintain the humidity at the correct level, 45-50% relative humidity, after it is restored with PW-HPCP-03. It both gives and takes moisture.
A completely self-sustaining system that lasts 3-6 months.
Put a PW-HTS humidity sensor in your case to keep track of when the bags start to run out and to make sure everything is right. Or the best alternative, the PW-HTK-01 bluetooth humidity sensor, and get the status of the instrument directly via bluetooth to your phone or tablet.
- Step 1: is the PW-HPCP-03 in the D'Addario Humidity Control System and is for bringing the humidity of the instrument and case up to 45-50% relative humidity.
- When the humidity has reached that level, it must be replaced with step 2.
- Step 2: is PW-HPRP-03 Maintain.