connection issue

Can Bluetooth soil sensors be connected to 103W, 203W?

No, it can only be connected to 103B Bluetooth timer or RD135 display.

Battery unit issue

My batteries drains out very fast. I need to change them very often. Is it normal?

Kindly note we only suggest to use brand new dry alkaline batteries. We do not suggest to use carbon or rechargeable batteries. Neither suggest to mix using old and new batteries. Would you please exchange batteries to brand new dry alkaline batteries and check for the batteries life span? If the problem cannot be solved even you do it as suggestion, please email to for further support.