| Model | ET-350C |
| Items of function | Chromatic |
| Features | ¡ù Red and green background light to used for both daytime and night ¡ù Easy operation |
| Specification | ¡ù Frequency for A tone: 430Hz 450 Hz ¡ù Size: 41¡Á31¡Á17(mm) |
| - | |
| Color | black |
| Accessory | button battery (Cr2032) |
| PHONE£º86-755-2674 7287 FAX£º86-755-2654 4696 | |
