Portable Water Quality MeterP-40 Series
Optical Dissolved Oxygen ProbeMM4-DDO
Desktop Water Quality Meter X Series
Ambient Air Monitoring System
Why Are We Different?
For Our Future
Message from the President
DKK-TOA Corporate Video
Environment / CSR Report(in Japanese)
We are closed on April 29th, and from May 3rd - May 5th due to the Golden Week Holidays.