Solinst Interface Meter

Solinst Interface Meter



The Solinst Oil/Water Interface Meters give accurate measurements of product level and thickness in monitoring wells and tanks. Determination of both floating non-aqueous liquids (LNAPL) and sinking non-aqueous liquids (DNAPL) is quick and easy. The factory-sealed probes are pressure proof and tapes are available in a range of lengths up to 450m (1500ft).

The 16mm (5/8”) diameter probe allows easy access through tight spaces and into narrow wells. The 38.1mm (1.5”) P2 probe has a glass cylinder covering the optics which is resistant to all chemicals. The extra weight of the P2 probe is useful on longer tape lengths and when DNAPL is being measured to ensure that the probe continues to hang straight in the well.

Features & Benefits

  • Measures free phase hydrocarbon layers in groundwater monitoring bores.
  • Models available up to 450m (1450ft).
  • Small 16mm probe attached to a permanently marked polyethylene tape.
  • Long battery life (approx 300 hours).

Technical Specifications

Refer to Product Brochure (Download below)


  • Monitoring LNAPL and DNAPL in groundwater monitoring bores.

Models Available

Solinst Oil/Water Interface Meters are available in the following lengths:

  • 15m (50ft)
  • 30m (100ft)
  • 50m (165ft)
  • 60m (200ft)
  • 80m (260ft)
  • 100m (330ft)
  • 125m (400ft)
  • 150m (500ft)
  • 200m (650ft)
  • 250m (800ft)
  • 300m (1000ft)
  • 400m (1300ft)
  • 450m (1450ft)

DownloadsPDF Icon