Small and practical: Simple but effective small AA, AAA Battery Tester Checker (BT-168D), compact in size and lightweight, easy to carry. Versatile usage: can test different types of household batteries such as of 9V and 1.5V. No power required: this battery monitor does it all. Easy-to-read analog display needle moves to quickly identify battery status "good" (green), "low" (yellow) and "replace/recharge" (red). Excellent in an emergency, this universal battery tester is powered by the batteries it tests. Easy to read: the number indicates the power level. No batteries required. It is activated by the battery being checked. The battery load tester comes with guaranteed quality: we want you to get the most out of your home battery testers! Product name: battery tester. Product material: ABS plastic Product net weight: 44G (net weight), 59G (gross weight) Product packaging: carton packaging Measurement environment: 0-40, 25%-80%RH Battery type: 1.5V, 9V, ABS plastic material: Insulating ABS plastic shell, light and compact, easy to use LCD screen: easy to read values, practical and intuitive Slider design: easy to test different types of batteries, easy to use Quantity delivered: 1 piece Welcometomeet