Diver-portable respirometer

Measures O2 and pH changes in a flow through system

Automatic calculations of photosynthesis and respiration

Temperature Range: -5 to 70°C (23 to 158°F)

Conductivity Range: 0 to 200 mS/cm

Dissolved Oxygen (Optical) Range: 0 to 500% air saturation, 0 to 50 mg/L

Particle Size Range: 0.1µm to 800 µm diameter

Image Resolution: Optical resolution < 1µm, 3.3 to 4.6 pixels/µm, 2.3 – 5.3 Mpixel sensors, 528 – 778 µm field of view

Sample Flow Rates: 0.07-16 µl/s

Wavelength Range: Max: 220-1100 nm

Spectral Resolution: Nominal: 0.43 nm, FWHM: 4.65 nm

Temperature Range: 0-55°C

Temperature Range: -5 to 70°C (23 to 158°F)

Dissolved Oxygen (Optical) Range: 0 to 500% air saturation, 0 to 50 mg/L

Conductivity: Range: 0 to 200 mS/cm

pH: Range: 0.000 to 14.000; Accuracy: ±0.004

ORP: Range: -1200 to +1200 mV; Accuracy: ±0.2 mV

Dissolved Oxygen (DO/BOD): Range: 0 to 50 mg/L

Dissolved Oxygen Accuracy: ±1.5% of reading

Dissolved Oxygen Resolution: 0.01 mg/L

Temperature Accuracy: ±0.3°C

Dissolved Oxygen Accuracy: ±1% of reading or 1% saturation (0 to 200%)

Temperature Accuracy: ±0.2°C

Barometer Accuracy: ±1.5 mmHg

Dissolved Oxygen (% Saturation): Accuracy: ±2% of reading or ±2% air saturation (0 to 200%)

Dissolved Oxygen (mg/L):Accuracy: ±2% of reading or ±0.2 mg/L (0 to 20 mg/L)

pH: Accuracy: ±0.2