HUAFAN HFP-1201 O2 Oxygen Meter (0–30% vol)

Gas Type: Oxygen (O₂)

Measurement Range: 0–30% vol

Resolution: 0.1% vol (0–100% vol range available)

Sensor Type: Electrochemical sensor

Sampling Method: Natural diffusion

Alarm Points: Below 18% vol and above 23% vol

Response Time: ≤20 s

Power Supply: Rechargeable 1800 mAh lithium battery

Temperature Range: -20 °C to 50 °C

Humidity: 15%–95% RH (non-condensing)

Charging Time: 3–5 hours

Charging Voltage: DC 5 V

Dimensions and Weight: 108 × 61 × 40 mm, approx. 135 g