5 in 1 Water Quality Meter
https://www.takealot.com/5-in-1-water-quality-meter/PLID72153485
Multifunctional, can measure pH, TDS, EC, and salinity values. The measurement range is large and wide, which can measure both freshwater salinity and sea salt.
Low power consumption, Automatic shutdown, the instrument will shut down automatically for 5 minutes without any operation.
Automatic temperature compensation function With backlight function, it can be tested at night
Small size, lightweight, easy to carry, can be put into a pocket
The waterproof grade is IP
At normal temperature and pressure, when the shell is temporarily immersed in 1M water will not cause harmful effects
Electrodes and Probe:
-Instantaneous reading results
-Option for mounting or hanging
-Quick and easy Installation
-Easy calibration of pH and TDS with just a mini-screwdriver (detailed procedure is in manual)
-Reliable and stable and transportable
-The operation is simple and comfortable
-detachable BNC composite
-plastic-coated for enhanced protection
-pre-calibrated (factory calibrated)
Limits:
EC: 0-10 000 us/cm; 10.01 – 19.99 ms/cm; 20.1-400 ms/cm
Salinity: 10.1 – 200 ppt; 0.00 – 25.00%
TDS: 0 – 1 000; 1000 – 10 000 ppm; 10.1 – 200 ppt
Temperature: 0.1 – 60 ºC; 32.0 – 140 ºF
pH: 0 – 14
7 in 1 Water Quality Testing Meter
https://www.takealot.com/7-in-1-water-quality-testing-meter/PLID72153493
7 different parameters: salinity, pH, Temperature (°F and °C), TDS (EC, CF, ppm)
Built-in Rechargeable Battery
Large, Tri-Screen LCD Display; 3 results displayed simultaneously
High pH accuracy up to ±0.1pH
Electrodes and Probe:
-Instantaneous reading results
-Option for mounting or hanging
-Quick and easy Installation
-Easy calibration of pH and TDS with just a mini-screwdriver (detailed procedure is in manual)
-Reliable and stable and transportable
-The operation is simple and comfortable
-detachable BNC composite
-plastic-coated for enhanced protection
-pre-calibrated (factory calibrated)
Limits:
EC: 0-10 000 us/cm; 10.01 – 19.99 ms/cm; 20.1-400 ms/cm
Salinity: 0 – 10 000 ppm; 10.1 – 200 ppt; 0.00 – 25.00%
TDS: 0 – 10 000 ppm; 10.1 – 200 ppt
Temperature: 0.1 – 60 ºC; 32.0 – 140 ºC
pH: 0 – 14
ORP: 0 – 999 mV
Specific gravity (S.G.): 1.000 – 1.222