Hardware for saleThread title: 54w t5 balasts and 150w mh's for sale Location: bluff Shipping or Collection only: collect All sales to be conducted on the thread.I agree
Photo's and description/list of items for sale: Hi I have
3 dual 54w t5 balasts
2 150w mh balasts with reflectors...
it is probably the high frequency of the switch mode power supply causing interference with the meter don't think this should affect the tank but could definitely affect the ph probe. might need to look at some shielding or power smoothing