3-in-1 PH Water Detection Pen Celsius Fahrenheit Water Detection Pencil Conductivity LCD Display for Home Aquarium Swimming Pool Feature: 1.Accurate and Reliable: Equipped with premium quality &sensitive probe, water quality tester enables quick and convenient test. Put the probe into water and LCD shows accurate results in seconds. 2.Multifunctional and Upgraded: Professional TDS, EC and Temperature Pen 3 in 1. Upgraded with big backlit LCD for easier reading, and auto-lock function for easier use. 3.Easy to Use: PH tester and TDS meter have sensitive electrode sensor ,simply press "ON". It only takes a few seconds for your result to appear the data on screen. 4.Wide Usage: These meters are designed small and convenient. For testing drinking water, swimming pools, aquarium, spas, hydroponics, food and more. 5.Satisfaction Guarantee: We strive to provide each customer with the highest standard of customer service to ensure you have a pleasant shopping experience. If you have any issues, inquiries or need assistance, please feel free to contact us directly. Specification: Style: A: Backlight white + leather case B: Backlight blue + leather case C: White + box D: Blue + box Color: White, Blue Size: About 152x30mm/5.98x1.18inch TDS measurement range: 0-9999 ppm EC measuring instrument range: 0-9999 us/cm Temperature measurement range: 1-80 ℃ Accuracy: -/+2% Battery: 1 CR2032 (included) Probe: alloy electrode probe Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement.

1 Set x Water Quality Tester