Tornado Warning Sirens and Outdoor Warning Systems for Industrial and Public Safety

Sample Bid Spec
and Other Tech Notes

97·0219·01	GENERIC BID SPECIFICATION FOR COMMUNITY OUTDOOR WARNING SIRENS
97·0220·02	NOTES ON ACTIVATION TECHNICQUES, DTMF VS TWO-TONE SEQUENTIAL
97·0303·04	TYPES OF POLES
97·0303·05	INFORMATION ON CONCRETE POLES
97·0308·06	NOTES ON SIREN COVERAGE
97·0513·07	AC vs SOLAR POWER FOR ELECTRONIC SIRENS