Material:plastic.Size:9.9X5.4X2.9cm.Feature:Three colored indicators give and accurate and easy battery power reading;
When the indicator is in red zone, the battery level is low in and battery must be replaced; in yellow zone, the battery is current; on green zone, the battery is full;
This product can check button cell batteries as well;
Good for checking if the rechargeable battery is fully charged;The measuring diameter of the three kinds of batteries are 7mm, 10mm and 20mm seperately
The battery checker is only for Button Cell.