This listing is for a Sierra Mass Flow Controller 
Model: 840L-2-OV1-SV1-D-V1-S1-MP-LF 

Specifications:
Brand: Sierra 
Type: Mass Flow Controller 
Condition: Used
Gas: Air
Flow Range: 0-10 SCCM
Output Signal: 0-5 VDC
Valve Control: 0-5 VDC
Connections: 1/4 In Compression
Max Pressure: 500 PSIG
Inlet Pressure: 100 PSIG
Outlet Pressure: 50 PSIG
Weight: 1.90 lb 

This item is exactly as pictured.