Are the temp and ph probes monitors or controllers?

It's a controller .. all in one.

This is the "head unit" - the controller - you plug in the probes/sensors in the bottom, as well as a "phone" cord from the controller to the power bar

power bar:

the controller tells the power bar to turn a certain outlet on/off .. depending on how you program the controller.

sample program:

Device name - outlet # name of device
PMP-A01 RETURN PUMP
CHP-A02 CHILLER PUMP
CHR-A03 CHILLER
LTS-A04 LIGHTS/HOOD FANS
HET-A05 HEATER
ATO-A06 AUTO TOP OFF
NTL-A07 OPEN
FUG-A08 FUGE LIGHT/ FAN/ MOON LIGHTS

if time > 00:00 then PMP on
if temp > 79.3 then CHP on
if temp < 78.7 then CHP off
if temp > 80.00 then CHR on
if temp < 79.0 then CHR off
if time > 8:00 then LTS on
if time > 21:00 then LTS off
if temp < 78.00 then HET on
if temp > 78.5 then HET off
if time > 16:00 then ATO on
if time >16:01 then ATO off
IF TIME > 20:55 then FUG on
if time > 7:55 then Fug off

If feed A 000 then PMP off
If Feed B 010 then PMP off
If Feed B 011 then ATO off

It also logs everything ... you can go back, and see what your ph/temp went to in the middle of the night. you can set it to record every second if you wanted ... i have mine set to log every 5 minutes .... but it's also a monitor as you can see on the display.

You can also manually overwrite & turn devices ON/OFF at any time on the head unit directly

Is this it...

Yes Sir.

NO LONGER FOR SALE.