Photocoupler
The transmitter uses fiber optics and laser diodes to transmit experimental data. The free running oscillator has a transmission frequency of approximately 3 kHz. Adjusting R5 makes it suitable for laser diodes. IC1 is CD4093.
Bolier Manometer,Square Pressure Gauge,Square Manometer With Capillary,Square Manometer
ZHOUSHAN JIAERLING METER CO.,LTD , https://www.zsjrlmeter.com