I bought this weather station for the main reason of it's capabilities to data log, particularly rainfall. It recorded up to 17,000mm per day when no rain fell! I cleared the data numerous times and played with calibrations but still the same. The unit doesn't have a battery backup and a power flick will delete all data, time and dates. Contacted Vevor and they said they would replace the faulty panel. After about a week they replied saying the replacement panel got lost in transit and offered me $20. I asked for the panel instead. They then offered me $56 to go away. I still wanted the replacement. They then offered me $110 to go away. I said refund me in full which they have and I will not be buying from them again.