| Parameter | Value |
| Model | OZ‑ONE |
| Article number | 3,51,00,06,110 |
| Weight | 185 g |
| Dimensions (length x width x height) |
210 mm x 60 mm x 40 mm |
| Ozone concentration | |
| Measuring principle | Electrochemical sensor |
| Measuring range | 0 to 1,996 μg/m3 (at 20 °C, 50 % RH and 1,013 hPa) |
| Accuracy | < 0.1 ppm (< 200 μg/m³): ±0.02 ppm (±40 µg/m³) at 25 °C and 1,013 hPa; otherwise ±10 % |
| Measuring range resolution | 1 µg/m3 or 0.01 ppm (10 ppb) |
| Drift | ±2 % / month* |
| Relative humidity | |
| Measuring range | 0.0 % RH to 99.9 % RH |
| Accuracy | ± 3 % RH (at 10 % to 70 % and 25 °C) ± 5 % RH (0 % to 10 % and 70 % to 99.9 %) |
| Measuring range resolution | 0.1 % |
| Reaction time | 2 s |
| Operating conditions | 0 °C to 50 °C, <80 % RH (non- condensing) |
| Storage conditions | -20 °C to 50 °C, <90 % RH (non- condensing) |
| Air temperature | |
| Measuring range | 0 °C to 50 °C or 32 °F to 122 °F |
| Accuracy | ± 0.6 °C |
| Measuring range resolution | 0.1 °C |
| Automatic switch-off | after approx. 15 minutes |
| Power supply | 4 AAA batteries |
| * This systematic measurement deviation is attributable to the characteristics of the required O₃ sensor technology. Electrochemical sensors are wear products and subject to a continuous aging process from the date of manufacture (see also chapter Errors and faults). |
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The OZ-ONE is the first ozone measuring device to make professional mobile ozone measurement technology accessible in a completely new dimension. Whether ozone occurs naturally near the ground or is generated by technical processes, even low concentrations pose a significant risk to health and are subject to strict legal limits. The OZ-ONE is the ideal instrument for fast spot checks and long-term monitoring of ozone concentrations in ambient air. It features extremely low cross-sensitivity to other gases and VOCs and delivers fast, highly accurate measurement results even at very low ozone levels. Numerous professional functions such as ozone zeroing, short-term and time-weighted average values, and switchable display from ppm to μg/m³ make the OZ-ONE an indispensable tool for precise ozone exposure measurements. In addition, it also functions as a compact environmental measuring device for temperature, humidity, dew point and wet bulb temperature, with a dual display showing two values simultaneously. Thanks to tripod mounting and mains or power bank operation via mini USB or 9 V socket, the OZ-ONE is also ideally suited for continuous long-term measurements.
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