SOUND TRANSMITTER – Model: TR-SLT1A4 噪音(音量)傳送器

SOUND TRANSMITTER    噪音(音量)傳送器

Model : TR-SLT1A4

* Range : 30 to 130 dB, 3 ranges.

* Output : 4 to 20 mA, DC.

* Power : 90-260 ACV.