Yes. The LED light on the Terminator will blink/flash rapidly when it is turned on and working correctly. If the light gets dim or goes out the battery is weak and needs to be changed. It the light stops flashing, try changing the battery. If it still doesn’t flash rapidly, it may be defective.
The Terminator is a very durable and reliable product. We have only had a tiny number of bad units, maybe 1 or 2 per year, after years of selling them and many, many hundreds sold every year. The most common problem is simply a defective or worn out battery.
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