The New Handy Polaris C hand-held meter makes it easy to measure dissolved oxygen and temperature.
Hand-held oxygen and temperature meter with NFC and Bluetooth technology
The OxyGuard Handy Polaris TGP is a hand-held meter that measures the atmospheric pressure, the total dissolved gas pressure, the oxygen partial pressure and the temperature.
The Handy Salinity is a hand-held instrument specifically designed for aquaculture use.