Welcome to DG Instruments About Us

For all your instrumentation requirements Shop Products

Meister Flow Switch Monitor for Air & Gases – RVM/U-L2 - Medium Range


The Meister RVM/U-L2 Flow Switch Monitor is designed to be mounted inline in your pipework, to provide a switch point at your specific flow rate. These Flow Switches are ideal for small pipes where Vane Type Flow Switches aren’t practical to fit. The Flow Switch Monitors operate on a Float measuring principal and can be installed in any orientation. 

The RVM/U-L2 Series are non-indicating flow switches and are only suitable for air and compatible gases.  We have other models for water and oils.  


  • Applications include but not limited to, pneumatic systems, aeration circuits
  • Solid Body Construction, compact In-Line; Adjustable Switch Point
  • ½” Port Connections; Brass or Stainless Body material
  • Brass rated to 300 BAR, Stainless rated to 350 BAR 
  • Ranges for air/gases from 2.5 up to 525 N/LPM (air)
  • Normally Open (SPST) or Change-Over Contact (SPDT) Output
  • Options include: EX-Proof to ATEX; High Temperature


Payment & Security

Payment methods

  • Apple Pay
  • Google Pay
  • Mastercard
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.