tempdrop.com

Not very satisfied.

Not a great product

Customer service response: slow Device not functioning properly since purchase Multiple battery changes required, data loss due to battery issue, making reliable cycle chatting difficult

I’ve had mine for several months now and though it is accurate with my period the same cannot be said for the fertile window. It puts a heavy emphasis on cervical mucous quality when determining your “peak” ovulation day. Has 0 predicting the ovulatory window function so is generally useless when it comes to avoiding pregnancy. It’s easy to use, set up, and sync temperatures/sleep. No complaints about that. Just feel like I was advertised a much more reliable product when it comes to natural family planning. Would not recommend.

Temps are low compared to oral ones. I'm too scared to trust it