Features - display: Lux, °C, °F, %RH, dB-A, dB-C, dB-low and dB-high, m/s, km/h, ft/min, knots, Mph - large 4-digit backlit LCD display - data hold and maximum hold - auto power off and Low battery indication - comes with: 1 x 9 V 6F22 (included), temperature and humidity probe, photo detector , anemometer probe, carry case and coloured box
sound level: - measurement range: 35 dB ~ 130 dB - accuracy: ± 2.0 dB - resolution: 0.1 dB - frequency response: 31.5 Hz ~ 8 kHz - frequency weighting: dBA
anemometer: - air velocity range: 0.5 m/s ~ 30.0 m/s - air velocity accuracy: ±3% ± 0.3 d - measurement units: m/s, km/h, ft/min, knots, Mph
temperature: - measurement range: -40 ~ 70°C (-40 ~158°F) - accuracy: ±2.0 °C /± 3.6 °F - measurement units: °C/°F
humidity: - measurement range: 10 ~ 95% RH - accuracy: ± 5RH % - power supply: 1 x 9V battery 6F22 (incl.) - dimensions: 252 x 66 x 33 mm - weight: 575 g (with probes and battery) More information: Display | Built-in display | Yes |  | Display type | LCD |  | Backlight display | Yes | Power | Power source type | Battery |  | Battery voltage | 9 V |  | Number of batteries supported | 1 | Weight & dimensions | Weight | 575 g |  | Width | 66 mm |  | Depth | 33 mm |  | Height | 252 mm | Features | Product type | Temperature humidity meter |  | Temperature measurement range | -40 - 70 °C |  | Accuracy | 2 °C |  | Humidity measuring range | 10 - 95 % |  | Accuracy | 4 % |  | Units of measurement | °C, °F |  | Product colour | Black, White |
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