Digital LCD Screen Battery Tester for R20S / R14S / R6S / R03 / R1 / Button / 6F22(Black)

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1. Measuring Battery Types:R20S R14S R6S R03 R1 Button 6F22
2. Easy to read LCD display
3. Remove the battery cover,place two 1.5V battery type R03 in correct polarity as figure and put the cover back.
4. Push power switch,test as figure.
5. If the LCD digits did not show,the power source battery has been exhausted,replace new 1.5V battery type R03 or substitute.
6. Battery type: 2 x AAA batteries(not included).