Model: 504 (0.5 to 4.0 L/min), Thread Type: N (NPT), Port Size: 03 (3/8), I/O Specifications: A1 (IN1: 1-5 VDC, IN2: External Control Input, OUT1: 1-5 VDC), Lead Wire: N (None), Bracket: R (with Bracket), Operation Manual: Y (None)

Model: 504 (0.5 to 4.0 L/min), Thread Type: N (NPT), Port Size: 03 (3/8), I/O Specifications: A1 (IN1: 1-5 VDC, IN2: External Control Input, OUT1: 1-5 VDC), Lead Wire: C (Lead Wire with M12 connector, 3m, Bracket: N (None), Operation Manual: Y (None)

Output Specification: P (PNP Open Collector 1 Output), Unit Specification: M (SI Unit Only), Piping Specification: C4L (One-touch Fitting ø4mm, Elbow Type), Option 1: L (Lead Wire w/Connector, 2m), Option 2: A1 (Bracket A, Vertical Mounting)

Output Specification: SV (2 outputs, NPN/PNP switching type + Analog current output), Unit Specification: M (Fixed SI Unit), Option 1 (Lead Wire): L (Power supply/output connection lead wire, Lead wire length: 2 m), Option 2 (Mounting): A1 (Bracket A, Vertical Mounting), Option 3 (Sensor Connector): C (With Sensor Connector)

Model: 520 (2.0 to 16.0 L/min), Thread Type: N (NPT), Port Size: 04 (1/2), I/O Specifications: A1 (IN1: 1-5 VDC, IN2: External Control Input, OUT1: 1-5 VDC), Lead Wire: C (Lead Wire with M12 connector, 3m, Bracket: R (with Bracket), Operation Manual: Z (with Operation Manual)

Output Specification: RT (2 outputs, NPN/PNP switching type + Analog voltage output), Unit Specification: M (Fixed SI Unit), Option 1 (Lead Wire): L (Power supply/output connection lead wire, Lead wire length: 2 m), Option 2 (Mounting): A1 (Bracket A, Vertical Mounting), Option 3 (Sensor Connector): C (With Sensor Connector), Option 4 (Manual or Certificate): K (with Operation Manual and

Rated Vacuum Range: -101 to 0 kPa, Output Specification: P (PNP Open Collector 1 Output), Unit Specification: M (SI Unit Only), Piping Specification: C4H (ø4 One-touch Fitting, Straight Type), Option 1: L (Lead Wire w/Connector, 2m), Option 2: A1 (Bracket A, Vertical Mounting), Option 3: K (Operation Manual, Calibration Certificate)

Output Specification: RT (2 outputs, NPN/PNP switching type + Analog voltage output), Unit Specification: M (Fixed SI Unit), Option 1 (Lead Wire): L (Power supply/output connection lead wire, Lead wire length: 2 m), Option 2 (Mounting): A1 (Bracket A, Vertical Mounting), Option 3 (Sensor Connector): C (With Sensor Connector)

Output Specification: P (PNP Open Collector 1 Output), Unit Specification: w/Unit Selection Function, Piping Specification: C6H (One-touch Fitting ø6mm, Straight Type), Option 1: L (Lead Wire w/Connector, 2m), Option 2: A1 (Bracket A, Vertical Mounting), Option 3: Y (w/o Operation Manual, w/o Calibration Certificate)

Input Specifications: 0 (Voltage Input), Output Specification: SV [2 Outputs (NPN/PNP Switching Type) + Analog Current Output], Unit Specification: M (SI Unit Only), Lead Wire: L (Power Supply/Output Connection Lead Wire, 2m), Bracket/Panel Mount: A1 (Bracket A, Vertical Mounting), Sensor Connector: C (Sensor Connector, for PF2MC and PF3A7)

Output Specification: P (PNP Open Collector 1 Output), Unit Specification: M (SI Unit Only), Piping Specification: N7H (One-touch Fitting ø1/4", Straight Type), Option 1: L (Lead Wire w/Connector, 2m), Option 2: A1 (Bracket A, Vertical Mounting)

Output Specification: PNP Open Collector 2 Outputs + Analog Voltage Output, Unit Specification: Unit Selection Function, Switches w/Unit Selection not Permitted for Use in Japan, Piping Specification: Female Thread, Lead Wire: -, Bracket: -, Operation Manual: -

Output Specification: NPN Open Collector 2 Outputs + Analog Voltage Output, Unit Specification: Unit Selection Function, Switches w/Unit Selection not Permitted for Use in Japan, Piping Specification: Female Thread, Lead Wire: -, Bracket: -, Operation Manual: -

Output Specification: NPN Open Collector 2 Outputs + Analog Current Output, Unit Specification: Unit Selection Function, Switches w/Unit Selection not Permitted for Use in Japan, Piping Specification: Female Thread, Lead Wire: -, Bracket: -, Operation Manual: -

Output Specification: PNP Open Collector 2 Outputs + Analog Current Output, Unit Specification: Unit Selection Function, Switches w/Unit Selection not Permitted for Use in Japan, Piping Specification: Female Thread, Lead Wire: -, Bracket: -, Operation Manual: -

Output Specification: PNP Open Collector 2 Outputs + Copy Function, Unit Specification: Unit Selection Function, Switches w/Unit Selection not Permitted for Use in Japan, Piping Specification: Female Thread, Lead Wire: -, Bracket: -, Operation Manual: -

Output Specification: NPN Open Collector 2 Outputs + Copy Function, Unit Specification: Unit Selection Function, Switches w/Unit Selection not Permitted for Use in Japan, Piping Specification: Female Thread, Lead Wire: -, Bracket: -, Operation Manual: -

Output Specification: T (PNP Open Collector 2 Outputs + Analog Voltage Output), Unit Specification: Unit Selection Function, Switches w/Unit Selection not Permitted for Use in Japan, Piping Specification: M5 (Female Thread)

Output Specification: R (NPN Open Collector 2 Outputs + Analog Voltage Output), Unit Specification: Unit Selection Function, Switches w/Unit Selection not Permitted for Use in Japan, Piping Specification: M5 (Female Thread)

Output Specification: S (NPN Open Collector 2 Outputs + Analog Current Output), Unit Specification: Unit Selection Function, Switches w/Unit Selection not Permitted for Use in Japan, Piping Specification: M5 (Female Thread)