Controller TF-GSM-B21 has such qualities as durability, and ease of configuration. It is possible to connect controllers, temperature sensors or humidity. Supports various display effects information and animations. Has high quality software providing with high-quality interface.
Controller TF-GSM-B21 LED display GSM+RS232.
Scanning mode: support 1/16, 1/8, 1/4.
16x16,32x32,48x48 and 64x64 bitmap fonts.
16 brightness levels of the display.
Screen switching: manual.
Working temperatures: -20℃ - +50℃.
Output voltage: 5 V.
Power consumption :W2,5