Use the Chloride Calibration Solution to calibrate chloride Ion Sensitive Electrodes (ISEs) for the Aqua TROLL 500 and A

pH buffer solution

Calibration standard for chloride Ion Sensitive Electrodes (ISEs).

Calibration standard for ammonium Ion Sensitive Electrodes (ISEs).

Measures and records water level and pressure, conductivity and temperature. Vented or non-vented.

Measures and records conductivity and temperature.

The rugged dissolved oxygen (RDO) RDOX probe uses optical technology for measuring DO in demanding wastewater process en

In-Situ’s premier water level logger, ideal for groundwater professionals who require higher data resolution, expanded m

A cost-effective, sub 1-inch, vented option suited for a variety of fresh, saline and contaminated water applications. 

Measures and logs water level, water pressure and temperature in a low-maintenance system. Ideal for long-term monitorin

This premium water level data logger, available in a vented (35ft (11m)) configuration, exceeds USGS surface water stage

Use the BaroTROLL Data Logger with non-vented (absolute) In-Situ instruments to conveniently measure and log barometric

Measures and logs water level, water pressure and temperature. This economical, non-vented (absolute) water level logger

In-Situ’s most economical option for measuring and logging water level, water pressure and temperature. Use this durable

Stable and repeatable solid state standard to perform RFU calibrations and checks on the Aqua TROLL Crude Oil sensor.

Stable and repeatable solid state standard to perform RFU calibrations and checks on the Aqua TROLL Fluorescein WT senso

Stable and repeatable solid state standard for RFU calibration and checks on the Aqua TROLL FDOM sensor.

Calibration cup and sponges to perform RDO Blue calibration.

Everything you need to perform 2-point dissolved oxygen calibrations on Aqua TROLL 400, Aqua TROLL 600, RDO PRO, RDO PRO

Calibration kit for RDO PRO probes.

Calibration cup for an Aqua TROLL 100/200.

Sodium sulfite (Na2SO3) calibration solution and DI water when calibrating at 0% saturation.

NIST-traceable conductivity solutions for low-range, high-range, or full-range calibrations.

NIST-traceable turbidity calibration solution (polymer suspension) for Aqua TROLL in 500 mL volumes. Available in 10 NT

Calibration standard for ORP/Redox electrodes.

NIST-traceable calibration solution. Available in pH 4, 7, or 10 in various volumes.

NIST-traceable conductivity solutions for low-range, high-range, or full-range calibrations.

pH/ORP Calibration Kit – Includes 1 Liter each: 4, 7, 10 pH, Zobell’s Solution

pH Calibration Kit – Includes 1 Liter each: 4, 7, 10 pH, DI Water