Hydrotech is a highly specialized repair and support center for water quality monitoring equipment, including Hydrolab. The company is equipped with the latest technologies to handle anything from circuit board repairs to sensor calibration certifications. Hydrotech also custom makes advanced sensors, cables and other hardware, applying today's technologies to yesterday's multiprobes.

Zak Sihalla has been servicing and repairing Hydrolab instruments for 16 years, including 8 years as the lead technician at the Hydrolab factory when it was located in Austin and the last 8 years as owner of Hydrotech. His reputation for high-quality repairs and fast turnaround is impeccable. References are available on request.

Calitech calibration solutions and replacement items are still available on our on-line store.

What do I do if I previously purchased an Alpha Design TDG sensor through another manufacturer?

If you purchased the Alpha Design TDG technology through another manufacturer or supplier (YSI, Hydrolab, Aquatic Eco-Systems, Hydrotech, etc.), you can still purchase your sensor from your current source. Warranty repairs need to be directed to your current source as well.

For non-warranty repairs or product refurbishments, you have the option contacting In-Situ directly or using Elecdata repair partner, Hydrotech ZS, in Hutto Texas.

Purchase of the Hydrolab TDG Probe, part number 70-027, and replacement membrane cartridges for Hydrolab TDG probe, part number 70-020, can be made through Elecdata. Please call Elecdata for pricing information.

Refurbishing of Hydrolab membrane cartridges is also supplied by In-Situ, part number 70-020RW. (Please contact Elecdata or In-Situ’s Service Dept. directly for an RMA number before sending membrane cartridges in for refurbishment.)

For further assistance, please call:

Electronic Data Solutions (208) 324-8006
In-Situ Service Dept. (800) 446-7488 x673
Hydrotech ZS (512) 846-2893

Other related links:

MP-TROLL 9500 Multiparameter Water Quality Instrumentation.

Aqua TROLL 200 Conductivity, Level/Pressure, Temperature and Data logging.

Alpha Designs Total Dissolved Gas Sensors for monitoring supersaturated waters.

In-Situ Flow-Sense Automated Low-Flow Sampling System to automatically monitor water quality parameters at specified intervals to determine whether the sample is representative of the ground water being drawn.

In-Situ LevelTROLL for monitoring temperature and water level in surface and ground water applications.

In-Situ Level Tape for accurate measurement of depth to water in wells and bore holes.

TROLL Link Telemetry Systems for remote data acquisition.

In-Situ Rentals -- Check out pricing for renting the TROLL 9500, LevelTROLL, miniTROLL, FlowSense, and Total Dissolved Gas sensors.

Hydrolab Support, Training and Repair Services -- Continuous support for our Hydrolab users

Teledyne ISCO Flow Meters and Water Samplers for Environmental Monitoring Applications.

Teledyne RD Instruments Acoustic Doppler Current Profilers.

HydroPlus CE Software to Bridge the Gap Between Multiprobe Brands

DataPlus CE Application Generator - Build your own data collection forms with sensor input without knowing how to program.

PConnect - RuggedReader software for use with Campbell Scientific Dataloggers.

DataSight Data Management, Graphing and Analysis Software - FREE SOFTWARE WITH UNLIMITED USE.