Hofun 5‑in‑1 Digital Pool Salt Tester & pH Meter — Titanium Probe, Salinity TDS EC Temp

The Hofun 5-in-1 digital tester measures salinity, TDS, EC, pH and temperature so you can check pool, spa or aquarium water quickly and accurately.

Whether you maintain a backyard saltwater pool, a koi pond, a marine aquarium or a home hot tub, consistent water readings are essential. The Hofun multi-parameter meter combines five common diagnostics in one handheld instrument with a titanium-alloy probe, easy-mode switching and multiple salinity units (ppm, ppt, %). It simplifies routine checks so you can spot imbalances early and keep water conditions stable without needing several devices.

How does the Hofun meter report salinity for pools and seawater?

The meter displays salinity in three practical units — parts per million (ppm), parts per thousand (ppt) and percentage — and automatically switches to the most useful scale when values exceed a range. That prevents manual conversions and makes reading results straightforward for both pool and marine applications.

• Pool salt range: 0–9,999 ppm for typical chlorinated salt pools.
• Seawater range: 10–200 ppt for aquariums and marine systems.
• Food/process range: 0.01–25% for brines or culinary uses.
• Auto-scale switching when ppm exceeds 9,999 to show ppt.

What other measurements can this device perform and why do they matter?

Alongside salinity, the Hofun meter reads total dissolved solids (TDS), electrical conductivity (EC), pH and temperature, giving a fuller picture of water quality in one test. These combined metrics help diagnose causes behind cloudy water, stressed fish or inefficient sanitization in pools and spas.

• TDS (ppm) to assess mineral and dissolved particle concentration.
• EC to evaluate ionic conductivity related to salt and dissolved ions.
• pH for acidity/alkalinity balance important to swimmers and aquatic life.
• Temperature for interpreting pH and biological activity effects.

How simple is the meter to operate and read in everyday use?

Operation is designed for quick checks: power on, press MODE to select salinity or other functions, dip the probe and read results on the clear display. The device’s straightforward interface and fast response are useful for routine maintenance and troubleshooting.

• One-button power and a MODE selector for function switching.
• Titanium-alloy probe for durable, fast readings and corrosion resistance.
• Clear numeric display with unit labels to avoid confusion.
• Compact handheld body fits easily in pockets or maintenance kits.

What accuracy and range should I expect for different applications?

The Hofun unit is built for broad coverage rather than laboratory precision: it offers reliable field-accuracy across common ranges used in pools, aquariums and hydroponics. For critical scientific work, use calibrated lab instruments alongside this meter for verification.

• Salinity: 0–9,999 ppm and 10–200 ppt ranges for pool and seawater needs.
• TDS: 0–9,999 ppm useful for dissolved solids checks in many systems.
• pH: suitable for routine monitoring of drinking water, pools, and aquaria.
• Temperature readout to contextualize chemical and biological readings.

Who this is for: The Hofun 5-in-1 tester is aimed at homeowners and hobbyists who manage salt pools, spas, aquariums or hydroponic systems and want a single, portable meter to monitor multiple water parameters. It also suits pond keepers and small-scale operators who need quick, actionable readings without owning several separate instruments. If you require robust field-friendly performance, easy unit switching and multi-parameter visibility in one handheld device, this meter provides a practical balance of features and convenience.