Description
| MB 49D Screen Display | |
| Frequency | 315MHZ/433MHZ |
| Speaker Volume | 2 Speaker, 16 time volume change |
| Power Supply | DC-12V2A |
| Display digit | 4 Digit |
| humidity | 10 – 80 % |
| temperature | 0 – 45 ˚ |
| Dimension | 56cmx11cmx5cm |
| Weight | 2 Kg |
MB49D & MB49K-Call Bell System
