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

Specifications:
Brand: Sierra  
Type: Mass Flow Controller
Condition: Used
Gas: N₂
Flow Range: 0-15 SLPM
Output: 0-5 VDC
Inlet Pressure: 30-40 PSIG
Weight: 1.89 lb 

This item is exactly as pictured.