INSTRUCTION MANUAL Photoelectric Sensor Amplifier .
CX-421 - Photoelectric Sensor
TSCR421CX6H - Linear Constant Current Regulated LED Driver
CX-421-P - Photoelectric Sensor
YH1421 - OCXO
GTCX35-421M-R05 - Gas Discharge Tube
GTCX255421M5R02 - Gas Discharge Tubes
GTCX36-421M-R10 - Gas Discharge Tube
GTCX25-421M-R02 - Gas Discharge Tube