Product
PH | COD | BOD | TSS | TDS | DO

Founded in year 2002 - Tethys Instruments is a leading global provider of gas and water on-line analysers for environmental applications. Headquartered in France, our distributors worldwide and us provide top-class service and instrumentation for environmental monitoring. Our technology based on UV spectroscopy offers unparalleled reliability and very low operating cost. Our new generations of gas and water analysers based on high speed digital signal processors provides unsurpassed performances in terms of response time, repeatability, ease of use, reliability. A special emphasis has been put on the ergonomy and accessibility to ease the installation and minimize the service cost. We are an experience, multicultural, creative, dynamic and responsive team, who is always available and listening to the needs of our clients. The choice of a quality managing system based on the principles of the ISO 9001 International Standard is a way to fulfill our ambition and to build our commitments.

It allows to monitor simultaneously many different parameters for waste water treatment plants or river monitoring stations with an excellent stability and low operating cost. The same spectrograph can measure organic matter, nitrate, colour, turbidity, phosphate, and ammonia and hydrogen sulphide.

UV500
UV500-Compact
UV400
UV300
UV300 5D
EL300
UV400 ATEX
EL200

Applications of probes are Industrial waste water treatment plant, Drinking water treatment plant, Other process water application , Municipal waste water treatment plant & Surface water application.

PH SENSOR GENERAL PURPOSE
PH SENSOR DIFFERENTIAL
ORP SENSOR
DISSOLVED OXYGEN PROBE
TOTAL SUSPENDED SOLIDS PROBE
TURBIDITY SENSOR
CHLORINE SENSOR
CONDUCTIVITY PROBE
UV PROBE
DISSOLVED OXYGEN PROBE AUTO CLEANING

Several gases can be measured simultaneously thanks to the UV spectroscopy method by using different wavelengths and algorithms. For gases with a periodic absorption spectrum such as NH3, SO2, NO, CS2 or acetylene, an algorithm based on FFT (Fast Fourier Transform) guarantees a very good selectivity of measurement.

CEM500
CEM500-L
CEM400
EXM500
EXM500-L
EXM400