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Cobalt containing/cobalt free humidity card
Used for moisture-proof packaging of PCB, electronic components, precision instruments and other products, detecting and displaying humidity inside th
Product details
Used for moisture-proof packaging of PCB, electronic components, precision instruments and other products, detecting and displaying humidity inside the packaging
Characteristics of cobalt containing humidity card: Blue turns pink
Cobalt free humidity card features: brown to light blue (or yellow to light blue)）
Cobalt containing humidity card specifications: three-point card: 5% -10% -60%, 30% -50%
Four point card: 10% -40%, 20% -50%
Five point card: 20% -60%
Six point card: 10% -60%
Cobalt free humidity card specifications:Three point card: 5% -10% -60%, 30% -50%
Six point card: 10% -60%
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