Laboratory & Field Instrumentation
Offering the world's most complete line of pH/ORP, D.O./ BOD/ Respirometry and Conductivity Instruments, Turbidity Meters, Photometers with reagents, WTW systems range from rugged waterproof, hand-held, and portable field meters to an integrated line of laboratory instruments, supplies and accessories that include the new and innovative inoLab™ systems and a wide range of technically advanced Multi-parameter instruments that represent the state-of-the-art in measurement systems. Our latest innovation is the 350i Multi-parameter handheld meter. This product delivers pH, Conductivity, Dissolved Oxygen, and temperature measurements in a portable, water-proof system with a compact multi-parameter probe.

On-Line Instrumentation
The IQ SENSOR NET system is a flexible, digital based system providing from 1 up to 20 measuring points suited for conventional instrumentation with analog outputs as well as for field bus instrumentation. The innovative digital sensors in this system represent the state of the art in process measuring systems. Our latest addition to the digital sensor offering is the NiCaVis™ product. This measurement system measures Nitrate and Carbon (COD), simultaneously in-situ.

The world’s most complete line of pH/ORP, D.O., Conductivity and unique self cleaning Turbidity instrumentation. Complete systems, probes and accessories are available for measuring and monitoring water and wastewater.

New TresCon™ Analyzers provide unparalleled modular flexibility and convenience for the on-line measurement and monitoring of up to three different parameters and uses the unique PurCon™ sample conditioning system for high accuracy and reproducibility in highly polluted wastewater samples.

The dependability, reliability, and versatility of WTW field proven Ammonia, Phosphate, Nitrite and Nitrate Analyzers, probes, and pH, ORP, D.O., and Conductivity systems and meters have established WTW products as industry standards world-wide.

WTW has built a solid reputation in its nearly 60 year history by providing “best in class” products with unparalleled customer and technical support. WTW strives to deliver solutions to our customers measuring problems. Our Customer Care Centers are dedicated to ensuring each customer’s individual success. WTW’s extensive applications library coupled with knowledgably applications specialist provides for rapid resolution to technical challenges.

With support facilities around the globe, the WTW manufacturing center, located just south of Munich, Germany, delivers quality technical instrumentation with continuous support. We are proud to present our product offering to you and look forward to serving your needs.

Company Highlights

1945	Company founded by Dr. Karl E. Slevogt
1948	Renamed to Wissenschaftlich-Technische-Werkstätten (WTW)
1954	Introduction of first WTW pH meter
1965	Introduction of first WTW oxygen meter
1976	Bavarian State Award for the Combibox compact multi-parameter system
1982	Introduction of the first zero-current-free (stable zero point) oxygen sensor for field measurements in the world
1983	Start of WTW's on-line measuring technology program
1986	First company to offer a 3-electrode oxygen sensor (TriOxmatic®) with automatic calibration on air (OxiCal®)
1987	First company to offer a 4-electrode conductivity sensor (TetraCon®) for portable water analysis
1993	First manufacturer of D.O., pH and conductivity measuring systems to be certified to ISO 9001
1995	Introduction of the mercury-free OxiTop® system for manometric BOD determination First company to offer monitors with built-in lightning protection
1998	Introduction of the PurCon® sample preparation system as a replacement for conventional filtration systems First WTW spectrophotometer
1999	“Innovations that make sense”: the new laboratory instruments of the inoLab® family with their 3 function levels set new standards for the analytical measurement of pH, oxygen, conductivity and temperature as well as for ISE and multi-parameter measurements
2000	Introduction of TresCon® – the modular analytical system for the continuous measurement of ammonium, nitrite, nitrate, phosphate
2001	IQ SENSOR NET – the multi-parameter measuring system offers unlimited possibilities for on-line measurements The new VisoTurb® and ViSolid® turbidity and solid sensors with their revolutionary ultrasonic keeping clean system give “low-maintenance” a completely new meaning
2002	AmmoLyt® 700 IQ enables reliable On-line “in-situ” measurement of Ammonium PurCon® IS: Sample Preparation – directly without pump
2003	NitraLyt 700 IQ is a perfect supplementary nutrient parameter (Nitrate) for On-line “in-situ” measurement
2004	Multi-parameter handheld meter Multi 350i represents state-of the art in field applications NitraVis®, CarboVis® und NiCaVis® – spectral “insitu” On-line sensors for combined Nitrate, Carbon and TSS measurement providing new solutions for waste water control