![](https://talk.newagtalk.com/forums/get-attachment.asp?action=view&attachmentid=45965) Eastern VA. No such thing as too many Magnums. | I have some planters with both. The regular sensors have 2 LEDs and they light up. The high rate sensors have 3 LEDs and they don't light up. Some high rate sensors have a yellow LED on the outside of the tube. It lights up, but the inner ones don't. Don't mix differnent kinds on any one planter or the monitor will be confused. |