7 In 1 Digital PH EC TDS ORP Salinity Fertility Temperature Water Quality Tester Pen With ATC For Aquarium Hydroponics Spa

7 In 1 Digital Water Quality Tester Pen For PH, EC, TDS, ORP, Salinity, Fertility, And Temperature. Features ±0.05pH Accuracy, ±2% FS For EC/TDS/Salt, And ±0.5℃ Temperature Precision. With Automatic Temperature Compensation (0–60℃), LCD Backlight Display, And IP67 Waterproof Design. Simple Calibration, Replaceable Probe, And Portable Pen Style Make It Ideal For Hydroponics, Aquarium, Pool, Drinking Water, Agriculture, And Laboratory Testing.

1. 7 In 1 Multi-Function – Combines PH Meter, EC Meter, TDS Tester, ORP Meter, Salinity, Fertility, And Temperature In One Compact Device.

2. High Accuracy Measurement – ±0.05pH, ±2% FS EC/TDS/Salinity, ±0.5℃ Temperature For Reliable Water Quality Tester Results.

3. Automatic Temperature Compensation – ATC Function (0–60℃) Ensures Stable Readings In Different Water Conditions.

4. Durable & Portable Design – IP67 Waterproof, LCD Backlight Display, Replaceable Probe, And Pen-Style Shape For Easy Carrying.

5. Wide Application – Ideal For Aquarium, Hydroponics, Drinking Water, Pools, Agriculture, Food Processing, And Laboratory Testing.

Specifications：

1.Model: YY-1101

2 .PH Range: 0.00–14.00pH, Resolution 0.01pH, Accuracy ±0.05pH

3. TDS Range: 0–10000ppm, Resolution 0.1ppm, Accuracy ±2% FS

4. EC Range: 0–10000μS/cm, 10.1–19.99mS/cm, 20.1–400.0mS/cm

5. Fertility Range: 0–3

6. ORP Range: ±999mV, Resolution 1mV, Accuracy ±2mV

7. Salinity Range: 0–25%, 0–10000ppm, 10.1–200.0ppt

8. Temperature Range: 0.0℃–60.0℃ / 32℉–140℉, Accuracy ±0.5℃

9. Display: LCD With Backlight

10. Waterproof Rating: IP67

11. Power: 3 × 1.5V LR44 Batteries（Batteries Not Included）

12. Size: 183 × 42 × 42mm

13. Auto Shut-Off: 5 Minutes

14. Calibration: Manual, Multi-Point Solutions

Packing List ：

1 * YY-1101 Water Quality Tester Pen

1 * User Manual

1 * Retail Packing Box

YY-1101A: Leather Case

YY-1101: Paper Box

FQA ：

Q1: Is This Device Calibrated Before Shipping?

A1: Yes, It Is Factory Calibrated, But Supports Manual Calibration If Needed.

Q2: Can The Probe Be Replaced?

A2: Yes, The Electrodes Are Replaceable For Long-Term Use.

Q3: What Is The Accuracy Of PH Measurement?

A3: It Provides ±0.05pH Accuracy With 0.01 Resolution.

Q4: Does It Support Automatic Temperature Compensation?

A4: Yes, It Supports ATC From 0–60℃.

Q5: Where Can It Be Used?

A5: Suitable For Hydroponics, Aquarium, Pools, Drinking Water, Agriculture, And Lab Testing.

For Precision Instruments, Choose Yieryi – Committed to Excellence, Trusted for Life.

World Love, China Made

Yieryi, Founded In 2016, Specializes In High-Quality Testing Instruments, Including Water Quality Pens, Soil Testers, Pool Testers, WiFi And Bluetooth Meters, Temperature Controllers, Refractometers, Electronic Scales, And Gardening Tools. With A Focus On Precision, We Use Imported Chips From Taiwan And South Korea For Accurate Results. All Products Are Tested And Calibrated For Reliability. Yieryi Offers Professional Customization, Ensuring Products Meet Specific Needs. Trusted For Accuracy And Quality, We Provide Solutions For Homes, Gardens, Farms, And Industries.