Mallory watch battery tester

例句：

1. 1. We need to replace the battery in our old watch before it malfunctions.
   我们需要在旧手表出现故障之前更换电池。
2. 2. The Mallory watch battery tester is a useful tool for testing the battery life of electronic devices.
   马洛里手表电池测试仪是测试电子设备电池寿命的一种有用的工具。
3. 3. The Mallory watch battery tester can detect any issues with the battery and provide suggestions for troubleshooting.
   马洛里手表电池测试仪可以检测电池的任何问题，并提供解决故障的建议。