Check the listing for details. NEW Qualiflow AFC 261 N2O 10 slm Mass Flow Controller MFC ASM PN: 845003291. Condition: New – Open box. Listed at 361.30 USD. NEW Qualiflow AFC 261 N2O 10 slm Mass Flow Controller (MFC), ASM PN: 845003291 Comes with what you see in the pictures. If you don't see it, you probably wont get it. Specifications are from Qualiflow and may vary slightly due to upgrades, options, or revisions this unit may or may not have. This part is new, old stock from ASM. The package may have been opened and resealed to recalibrate the units so that ASM could ship them when a customer ordered them. The calibration is past due however. ASM Information: Part Number: 845003291 Description: FC-QFLW 261-N2O 10 SLM-VITON-VID The Unit's Tag Reads: Model Number: AFC 261 Flow Range: 10 slm Gas: N2O The Box's Information Tag Reads: Part Number: 261OVMM010L027D Model Number: AFC261NO Description: 10 slm N2O VCR1/4"MM VID Features: Compatible with other MFC Economic design, simple construction Outstanding records throughout various industries Possibility to regulate without external readout. Specifications: Flow Range (equivalent N2): 10 slm to 20 slm (this unit is setup for 10 slm) Control Range: 2 - 100% F.S. Valve Type: Thermal Valve Rest Position: Normally Open only Accuracy: ±1% of F.S. Linearity: ±0.5% of F.S. Repeatability: ±0.3% of F.S. Sensibility to Mounting Position: ±0.1% of F.S. Step Response Time: ~6 sec. typical (SEMI E17-91) Operating Temperature: 5 ~ 40°C, non-condensing Temperature Coefficient: < 0.5% F.S./°C Maximum Inlet Pressure: 1 MPa (10 bar, 150 psi) Minimum Differential Pressure: 50 kPa (70 kPa with H2) Maximum Differential Pressure: 300 kPa (3 bar, 43 psi) Pressure Coefficient: < 0.1% F.S./105 Pa Wetted Materials: 316 L Stainless steel Leak Integrity: < 2.10-8 atm.scc/sec (He) Standard Seals: Viton, Neoprene Fittings: 1/4" M VCR, Swagelok Weight: 1 Kg Input and Output Specifications: Mass Flow Meter: ±15 VDC, 150 mA Input and Output Signal: From 0 to 5 VDC Electrical Connector: Card edge For Domestic Customers: Packaging, handling, and order processing included in shipping in all domestic shipments as quoted by the shipping calculator. For International Customers there is a $5.00 minimum for packaging, handling, and order processing. International shipping to be determined by destination. Prior to shipment I will need to know the following information (filled out on a form that I will send you) for International Customers or Packages/Freight being Forwarded internationally. International customers may also be subject to a freight forwarder form if applicable.: (1) Are you the end-user of this item? (2) If you are not the ultimate end-user of the item, please state the ultimate end user's name. (3) What is the ultimate country destination? 03/19/12