Just for info if anyone is interessted. I'm preparing Arduino NRF24L01 PCB for low power sensors suitable for door/windows, water leak, soil moisture, temperature/humidity sensors. PCB is Arduino Pro mini size and sensor can work on 2 AA batteries between 5 and 10 years.
Could you share your design before you order the PCB?
Did you think of a cheap fitting enclosure and battery holder?
Do you have a target for price/unit?
