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Damage Prevention Solution

News

3M™ Warning Tape Standard Frequencies

October 19, 2021

Each APWA color is assigned a standard frequency in the 3M™ Warning Tape 7900 Series.

🟨 Gas → Yellow → 53.9 kHz
🟧 Telecom → Orange → 48.8 kHz
🟥 Power → Red → 34.9 kHz
🟦 Water → Blue → 73.5 kHz
🟩 Wastewater → Green → 41.4 kHz
🟪 Reclaimed Water / General Purpose → Purple → 44.9 kHz

Learn more about this innovative product here.

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