|
Mighty Mike
says -
"welcome
to the
CEL-350
dBadge
website"
| |
| No image available yet |
Key features
 | simple to use |
| fixed measurement range 80-140 dBA |
| control with small Allen key or paperclip |
| display in binary format for noise dose % value |
| fixed criterion of 90 dBA |
| 3 dB exchange rate for equal energy principal measurements |
| powered by 9V battery |
| 1 measurement at a time |
| released in about 1972 |
|
|
