2 Pieces Professional Liquid Hardness Meter With Metal

2 Pieces Professional Liquid Hardness Meter With Metal Description

Features:
Features an improved LCD screen with smart backlight that switches to green when dissolved content 40 (clear water) and red when dissolved content >40. The illuminated screen proposals easy to read measurements even in low light, perfect for home and lab use.
Measures total dissolved content (0 9990 ppm), conductivity (0 9990 μs/cm), and temperature (0 60C) simultaneously. Great for checking drinking water purity, hydroponic nutrients, or aquarium maintenance with laboratory grade accuracy (2% margin).
Includes a sturdy alloy testing component that resists electromagnetic interference. Delivers consistent readings across various water types, appreciated by specialists and everyday users alike.
Press the HOLD button to freeze measurements for easy recording. Built in temperature adjustment accounts for water variations (0 60C), preserving data consistency in different conditions.
Works immediately without setup requirements. Auto turnoff saves battery when not in use. Compact size with included hook enables simple transport and storage.

Specifications:
Display: LCD screen with backlight (intelligent two-color warning)
Measuring extent: 0 - 9990 ppm (error 2%)
Measuring extent: 0 - 9990 μs/cm Temperature extent: 0 - 60.0C (32.0 - 140.0F)
Power supply: 1 x 3V coin cell battery
Backlight reasoning: < 40 (green)/ 40 (red)

Package Includes:
1 x trilateral water quality testing pen with backlight

note:
Pay attention to the storage methods.