Digital Tachometer at fault

[WindyParticipant @windy30762]

I charged the batteries for my Digital Tachometer that has not been used for a long time.

But it wont display the Target Indicator so no rpm readings.

The high, low memory screen worked but nothing recorded.

It's only a cheap one but would like to know what's gone wrong the Photo Signal red light beam works.

Paul

[WindyParticipant @windy30762]

[Nick_GParticipant @nick_g]

.

Have you removed the magnet at any point. Mine is polarity sensitive to the magnet (I think)

Nick

[Author]

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