[50 Packs] Dry & Dry Premium Cobalt Free Humidity Indicator Cards(6 Spots)

You are now bidding on Brand New 50 Pack of Cobalt Chloride Free Humidity Indicator Cards - 10-60% 6 Spot(50 Cards)

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• Card Dimension : 1.5"(3.8cm) x 4.5"(11.5cm)
• Cobalt Chloride Free Premium Quality - Eco Friendly Humidity Indicator Card
• 66 Spots Humidity Indicating - (10%/20%/30%/40%/50%/60% RH) - Clear Color Change
• Indicator Changes Green to Purple(Violet) - Green(Dry) to Purple(Humid)
• Major Electronics Companies use this cards

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