- Quick and Accurate: This water tester meter delivers fast and precise measurements of water quality, enabling you to easily assess the cleanliness of your tap water. - Filter Performance Measurement: Assess the effectiveness of your water filters with this meter. It helps you identify the optimal time for filter replacement, ensuring your family has access to safe and clean water. - Portable and Versatile: Designed for convenience, this lightweight water testing pen is easy to carry. Whether at home, visiting friends, dining out, or in public places, you can test water quality whenever needed. - Precise Measurements: The meter offers measurements in parts per million (ppm) with a resolution of 1ppm and an accuracy of +/- 2%. It features an automatic shut-off function after 10 minutes to extend battery life. - Practical Applications: Use this tester to check the safety of water from your kitchen tap, verify the quality of water in restaurants, or monitor water sources during travel.