Conductivity Meter - Indicator Basic

The Basic Conductivity Indicator offers a simple, visual way to compare the electrical conductivity of different liquid solutions. This apparatus features a row of ten green LEDs that illuminate in proportion to the ionic conductivity of the solution into which the probes are inserted.

Ideal for chemistry classes, this device enables students to investigate how salt, acid, or base concentration affects conductivity in real time. The clear LED feedback makes it suitable for students of various ages.

Educational Benefits

• Demonstrates variation in conductivity across different solutions
• Visual LED output supports students' observational skills
• Helps reinforce concepts of ions and electrolytic conductivity
• Encourages data collection and graphing in experiments

Classroom Ideas

• Compare distilled water with tap water or saline solutions
• Investigate conductivity of strong vs weak acids and bases
• Use to test household substances like vinegar or lemon juice
• Include in a guided inquiry task on solution properties

Specifications

• LED indicator: 10-step green LED array
• Probes: For immersion in liquid solutions
• Requires power source (not included)
• Suitable for upper primary to secondary students