Firetide, a wireless mesh vendor, has raised $8.5 million in its fifth round of funding, mostly from a new investor, ESCO Technologies. ESCO makes utility, filtration, and RF shielding equipment. According to Firetide CEO Bo Larsson, ESCO’s Aclara division signed an agreement with Firetide to develop a wireless mesh product for automated meter reading applications to be used by utility companies. Unlike other wireless mesh vendors, Firetide has decided to focus on municipal applications, notably, wireless video surveillance, and its equipment is installed in many cities by police departments. Firetide has raised $55.8 million so far from Menlo Ventures, Coral Capital, ESCO, and other smaller investors.