Choice without backlight 5-in-1 Digital PH TDS EC Salinity Temperature Tester Conductivity Meter Filter Pur

Product Overview

This 5-in-1 multifunctional water quality testing pen integrates 5 core testing functions: pH, TDS, EC, salinity and water temperature. Just press the MODE button to freely switch test modes, with automatic memory for the last used mode after power-off. Adopting high-sensitivity alloy probe and built-in automatic temperature compensation system, it delivers accurate readings within only 3 seconds. Equipped with an IP67 fully waterproof body and green backlit LCD screen, this compact handheld tester is perfect for testing drinking water, fish tanks, swimming pools, hydroponics, spa and aquaculture water quality at home or laboratory.

Core Features

1. 5-in-1 Multi-Parameter Testing Function

One pen for 5 essential water indicators:

pH: Measure water acidity & alkalinity

TDS (ppm): Detect total dissolved solids to judge water purity

EC (uS/cm): Test electrical conductivity of liquid

**Salinity (%): Measure water salt content

Temperature (°C/°F): Switch Celsius and Fahrenheit by long pressing TEMP key

Mode memory function saves your last test setting automatically when powering on again.

2. Fast 3 Second Instant Readings & High Accuracy

High-sensitivity rust-proof alloy probe conducts signals rapidly, outputting stable test results in 3 seconds with ±2% measuring precision. Detachable probe design allows easy replacement when needed, long service life and low maintenance cost.

3. IP67 Full Waterproof Integrated Body

Seamless hole-free pen body with fully waterproof buttons and screen panel, reaching IP67 waterproof rating. No more malfunction caused by accidental splashing or water infiltration, safe to immerse the probe fully into liquid for testing.

4. Automatic Temperature Compensation (0-60°C)

Temperature fluctuation will affect water test data. This tester features intelligent auto temperature compensation within 0~60°C, automatically correcting measurement errors brought by cold or hot water to ensure consistent precise readings in all environments.

5. Clear Green Backlit LCD Screen

Dual-display screen shows both parameter value and real-time temperature simultaneously. Bright green backlight enables clear reading in dark, dimly lit rooms or outdoor night use, no need extra light source.

6. Portable Handheld & Simple Operation

Ergonomic lightweight pen shape with hanging hole design for easy storage and carrying. Simple 3-button operation: power on/off, mode switch, data hold & temperature unit conversion. Data HOLD function locks readings for convenient recording after taking out from water.

7. Wide Application Scenarios

Household drinking water, well water, purified water inspection

Aquarium, fish tank, fish farming aquaculture water monitoring

Swimming pool, hot spring, spa water salinity & pH testing

Hydroponic planting, garden nutrient solution detection

Laboratory water quality experiment, beverage & cosmetic liquid testing

Product Specifications

Test Items: pH, TDS, EC, Salinity, Temperature

Accuracy: ±2%

Waterproof Grade: IP67

Temperature Range: 0°C ~ 60°C (auto temp compensation)

Temperature Unit: °C / °F switchable

Probe Material: Anti-corrosion aluminum alloy, detachable

Display: Dual-screen green backlit LCD

Operation Buttons: Power, MODE/CAL, HOLD/TEMP

Power Supply: Built-in replaceable batteries

Design: Handheld portable pen style with lanyard hole

Selling Bullet Points (Listing Highlight Section)

✅ 5-in-1 multifunctional tester: pH / TDS / EC / Salinity / Temperature all in one

✅ Ultra-fast 3-second instant stable readings with ±2% high precision

✅ IP67 full waterproof seamless body, safe for full immersion testing

✅ Auto temperature compensation eliminates data error from cold/hot water

✅ Green backlit dual display screen, read data clearly day and night

✅ Detachable anti-rust alloy probe, easy to replace and maintain

✅ Mode memory & data hold function, simple one-hand operation

✅ Portable size ideal for drinking water, aquarium, pool, hydroponics & aquaculture