Silent BBT thermometer?

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I have a BBt thermometer that beeps when it’s done and lights up. The beeping was supposed to be quiet. It’s not. My partner wakes up to the noise. So I’ve stopped tracking my temp because it disturbs him. It is quite loud. Is there one that is silent and just lights up when it’s done? I like taking it during the night when I know I’ll be sleeping compared to when I’d be getting up in case I have to get up at a different time. But tracking my temp is pointless if my thermometer is so loud I can’t even use it because my partner is a light sleeper. So I’d love any suggestions on a BBT thermometer to try instead of this one. Thanks!

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