Pre-Orders with an Expected time of Delivery in 2 - 4 Weeks
Alkalinity
Calcium
Low Range and High Range Nitrate
Ultra Low Range Nitrite
Ultra Low Range Phosphate
pH
All-In-One Testing with Precise Results for Reef Tanks
The HI97105 Marine Master Photometer is a waterproof tester that combines accuracy and ease of use into one simple, portable design. Its advanced, lab-quality optical system ensures accurate readings while its user-friendly design and built-in tutorials make it perfect for marine scientists and aquarium hobbyists alike.
Precise and advanced LED optical system
No warm up time needed before taking a measurement
Waterproof and floating IP67 meter design
CAL Check validation and calibration
Consolidates testing needs into one unit
Includes auto-data logging features to easily record water testing results
On-screen tutorial mode guides users step-by-step through the measurement process
Option to select measurement location for better tracking consistency
Auto shut-off
Rugged carrying case included
 
Testing Parameter
Specifications
Marine
Alkalinity
Range
0.0 to 20.0 dkH
0 to 357 ppm (as CaCO3)
Resolution
0.1 dkH
Accuracy
±0.3 dKH ±5 % of reading at 25 °C
±5 ppm ±5 % of reading at 25 °C
Method
Colorimetric Method - The reaction causes a distinctive range of colors from yellow to greenish blue to develop
Marine
Calcium
Range
200 to 600 ppm
Resolution
1 ppm
Accuracy
±6 % of reading at 25 °C
Method
Adaptation of the Zincon Method
Marine
Nitrate
Range
0.00 to 5.00 ppm (as NO3¯)
0.0 to 75.0 ppm (as NO3¯)
Resolution
0.01 ppm
0.1 ppm
Accuracy
0 to 200 ppb (as NO2¯-N)
Method
Adaptation of the Zincon Method
Colorimetric Method The reaction between nitrate and the reagent causes a pink/violet tint in the sample.
Marine
Nitrite ULR
Range
0 to 200 ppb (as NO2¯-N)
Resolution
1 ppb
Accuracy
±10 ppb ±4 % of reading at 25 °C
Method
Adaptation of the EPA Diazotization Method 354.1 - The reaction between nitrite and the reagent causes a pink tint in the sample.
Marine
pH
Range
6.3 to 8.6 pH
Resolution
0.1 pH
Accuracy
±0.2 pH of reading at 25 °C
Method
Colorimetric Adaptation of the Phenol Red Method
Marine
Phosphate LR
Range
0.00 to 0.90 ppm
Resolution
0.01 ppm
Accuracy
±0.02 ppm ±5 % of reading at 25 °C
Method
Adaptation of Standard Methods for the Examination of Water and Wastewater, 20th Edition, Ascorbic Acid Method - The reaction between phosphate and the reagent causes a blue tint in the sample.
General
Light Source
Light emitting diode
Light Detector
Silicon photocell
Bandpass Filter Bandwidth
8 nm
Bandpass Filter Wavelength Accuracy
±1.0 nm
Logging
200 readings
Power Supply
1.5 V AA Alkaline (3 pcs.)
Battery Life
> 800 measurements (without backlight)
Auto-off
After 15 minutes of inactivity (30 minutes before a READ measurement)
Environment
0 to 50 °C (32 to 122 °F); 0 to 100% RH, non-serviceable
Dimensions
142.5 x 102.5 x 50.5 mm (5.6" x 4.0" x 2.0")
Weight
380 g (13.4 oz.); with batteries