Product Specifications: Color: Silver Power Supply: 1.55V Button Battery (Included) Package Contents: 1 x Battery Tester. Test Range: C, AA, AAA, D, N, 9V (6F22) and 1.55V button cell battery Working Temperature: 0C ~ 40C Features: Easy to use and compact, ideal for small tool bags, tool boxes or utility drawers at home Tests C, AA, AAA, D, N, 9V 6F22 and 1.5V button cell batteries Suitable for carbon, zinc, alkali High quality and trouble-free performance Clear LCD bar graph display for easy reading Reliable and intelligent Tri-color meter shows battery level Accurately check remaining battery charge Convenient instant readings Made of durable ABS and stainless steel Product Description: Small and practical: Simple but effective small battery tester, small and lightweight, easy to carry. Test different battery types: It works with standard household and rechargeable C, AA, AAA, D, N, 9V 6F22 batteries. Easy to read: Great gadget to tell you if your battery is good, low, or needs replacing luckymeet