Battery life: 6 months (typical) at 5 readings a day / 5 day week without backlight (backlight usage will decrease battery life)
Battery requirements: 4 AA size batteries
Cuvette compatibility: 1 inch round / 16 mm round (with adapter)
Detector: Silicon photodiode
Dimensions (H x W x D): 231 mm x 96 mm x 48 mm
Display: Graphical display 240 x 160 pixel (Backlit)
Enclosure waterproof rating: IP67
Environmental conditions: relative humidity: Max. 90 % relative humidity (non-condensing)
Environmental conditions: temperature: 10 - 40 °C
Interface: USB type Mini IP67
Manual languages: English, French, German, Italian, Spanish, Portuguese, Bulgarian, Chinese, Czech, Danish, Dutch, Finnish, Greek, Hungarian, Japanese, Korean, Polish, Romanian, Russian, Slovenian, Swedish, Turkish
Operating conditions: 10 - 40 °C (50 - 104 °F), max. 80 % relative humidity (non- condensing)
Operating mode: Transmittance (%), Absorbance and Concentration
Optical system: 0 / 180 ° transmittance
Photometric accuracy: ± 0.03 Abs
Photometric linearity: ± 0.002 Abs (0 - 1 Abs)
Photometric measuring range: 0 - 2 Abs
Reproducibility: ± 0.005 Abs (0 - 1 A)
Source lamp: Light Emitting Diode (LED)
Spectral Bandwidth: 15 nm filter bandwidth
Storage conditions: -30 - 60 °C (-30 - 140 °F), max. 80 % relative humidity (non-condensing)
Stray light: < 1.0 % at 400 nm
Supported chemistry: Hach tests
Temperature range: 0 - 50 °C
User interface: English, French, German, Italian, Spanish, Portuguese, Bulgarian, Chinese, Czech, Danish, Dutch, Finnish, Greek, Hungarian, Japanese, Korean, Polish, Romanian, Russian, Slovenian, Swedish, Turkish
User programmes: 10
Warranty: 24 months
Wavelength accuracy: ± 1 nm
Wavelength range: 420, 520, 560, 610 nm
Wavelength selection: Automatic
Weight: 0.6 kg with battery
What's included?: Includes: DR900 instrument, USB cable with mini-USB connector, 4-AA alkaline batteries, 2 glass sample cells 1-inch (25 mm) round with 10, 20, 25-mL marks, 2 sample cells 1 cm/10 mL, sample cell adapter and multilingual user manual
