New pen-type 3 in 1  pH Tester EC TEMP Meter Analyzer Water Quality Purity temperature Monitor Automatic Calibration 0.01 

Features:

Test temperature in degrees / Fahrenheit(switchable unit).

Use to measure the pH & EC & TEMP of solution.

Electrode probe can be replaced， ATC function.

Easy to carry and simple to operate.

Easy calibration of pH and EC with just a mini-screwdriver.

Automatic temperature compensation.

Large and clear LCD with backlight， easy to read and accurately measuring functions.

Apply in water sources， aquarium， hydroponics， spas， swimming pools and other water systems.

Specifications:

Range: pH: 0.00 ~ 14.00pH

EC: 0.00 ~ 19990us/cm

Temperature: -50 degrees~ 70 degrees (-58 Fahrenheit~ 158Fahrenheit )

Resolution: pH: 0.01pH

EC: 10us/cm

Temperature: 0.1 degrees (0.2 Fahrenheit)

Accuracy: pH: ±0.1pH

EC:±2%F.S

Temperature: ±1 degrees (±2 Fahrenheit)

Temperature Compensation: 0 degrees ~ 50 degrees (32 Fahrenheit~ 122Fahrenheit)

Working temperature: 0 degrees ~ 50 degrees (32 Fahrenheit ~ 122 Fahrenheit)

Power Supply: DC 6V

Battery: 4×1.5V AG-13 Button Cell Batteries (NOT Included!!)

Note: this item comes without retail box.