The Aquaread LeveLine-CTD adds conductivity and salinity to the LeveLine's water level and temperature record, all in one sealed logger with a 10-year lithium battery and memory for 500,000 readings. The conductivity sensor is adapted from the Aquaprobe range and uses a stainless steel ring, and the ceramic level sensor keeps ±0.05% full-scale accuracy. That makes one logger suitable for saltwater intrusion studies, tracer tests and routine chemistry checks alongside level and temperature.

Choose an absolute logger (pair it with a LeveLine-Baro) or a gauge logger on a vented cable. SDI-12 and Modbus (RS485) outputs allow direct connection to telemetry and SCADA. Set up through the LeveLink PC software, a QuickDeploy Key or a GPS LeveLine meter.

Specifications

• Level ranges: absolute 10, 20, 50 or 100 m; gauge 10, 20 or 50 m; ±0.05% of full scale
• Conductivity: 0–200 mS/cm, ±1% of reading or ±1 µS, whichever is greater
• Salinity: 0–70 PSU, calculated from conductivity and temperature
• Temperature: −20 to 80 °C
• Memory: 500,000 records
• Size: 22 mm diameter × 260 mm long; weight 250 g; warranty 2 years

Need cables, desiccant, adapters or calibration solutions? Browse the Aquaread Parts & Accessories collection.