Hofun 9909-A-1 5-in-1 Digital Water Tester for Salinity, pH, EC, TDS and Temperature
Product description
The 5-in-1 format brings salinity, pH, EC, TDS, and temperature readings together in one digital water tester. Need to check more than salt levels? Switch between measurement modes to monitor water in a pool, aquarium, spa, or hot tub. Its IP67 waterproof rating adds practical protection for water testing.
Specifications
- Name: Hofun 9909-A-1 5-in-1 water tester
- Measurements: Salinity, pH, EC, TDS, and temperature
- Salinity display: PPM, PPT, and percent
- Pool salinity range: 0–9,999 ppm
- Seawater salinity range: 10–200 ppt
- Food salinity range: 0.01–25%
- Waterproof rating: IP67
The selectable salinity units make it easier to read results in the format suited to the task, without manually converting between PPM, PPT, and percent. For pool checks, choose salinity mode and use the PPM reading, the meter switches to PPT automatically when the PPM figure exceeds 9,999. The multi-parameter design is useful when you want to check several aspects of water quality with one handheld instrument rather than separate meters.
Buyers often describe the display and operation as easy to use, and some prefer the meter to test strips. Feedback on measurement accuracy and calibration is mixed, including for pH and salt readings. Treat readings as a guide to monitoring, and follow the calibration instructions for your use.
Usage tips
Remove the protective cap before testing and insert the probes into the water without passing the MAX immersion line. Select the measurement mode you need, then allow several seconds for the display to stabilize before reading it. After testing, rinse the electrode with pure water and wipe it dry. Do not calibrate the instrument in air, if it has been unused for a long time, calibrate it before use.
For routine pool maintenance, the salinity mode provides a direct PPM or PPT reading, while pH, EC, TDS, and temperature modes support broader water checks. The same multi-mode approach can be used for aquarium, marine, spa, hot tub, and hydroponic water monitoring. Choose this type of tester when you want multiple measurements in one device, a single-purpose meter, by contrast, focuses on just one water parameter.
Included in the package
The package list includes three pH calibration powders and a user manual. The powders are intended for calibrating the pH function, so keep the manual available when preparing the meter for use.
Should you buy it?
It suits you if you maintain a saltwater pool, aquarium, or other listed water setup and want one instrument for salinity and several additional readings. Selectable salt units, dedicated measurement modes, and a compact multiparameter format make it a practical choice for regular water checks at home. Use the stable on-screen reading and the provided calibration guidance as part of your testing routine.