text: The CD V-710 was another high range survey meter, however, unlike the CD V-720, CD V-715, and CD V-717 its scale is only 0-50 R/H (0-0.5, 0–5, and 0-50) making it more of a mid range meter, however it is still far too high to respond to any exempt sources.  The CD V-710 was made in 5 different versions from 1955 to at least 1958, the model 1 was produced by El-Tronics, models 2 and 4 were produced by Jorden Electronics, and models 3 and 5 were produced by Victoreen Instruments, models 1-3 were metal, and 4 and 5 were plastic.  All versions of the CD V-710 use a combination of D batteries and obsolete 22.5 volt B batteries.  By 1959, 170,750 were procured, however the model was ultimately superseded by the CD V-715 and in September 1985 FEMA issued instructions that remaining CD V-710s should be disposed of as obsolete.