An exemplary safety device can comprise a guard coupled to a lower end of a support shaft and two arms coupled to the support shaft configured to engage with the inner walls of the meter box. Coolant air is presented within the cavity 35, 135, 235 in order to provide cooling of the platform 34, 134, 234. The server is configured to re-encrypt the ciphertext data file using the re-encryption vector to obtain a re-encrypted data file that can be decrypted using the second matrix to obtain a decrypted data file, and to allow the download device to download the re-encrypted data file therefrom. A method or forming a combination of various poured or nonpoured filler walls to form a structural, solid filled wall, post and beam filled wall, or a solid insulated structurally framed nonfilled wall. The server collects managerial data from network components and selects a wireless interface, based on the notification from the mobile station and the managerial data. A corresponding set of probe radio signals is transmitted from the set of probe antennas.