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PRODUCT REVIEW<br />
Product Review<br />
CHHC-1 controller<br />
by<br />
N<br />
ow here is a sweet little<br />
addition to just about<br />
any garden! This unit<br />
produced by Sentinel is called the<br />
CHHC-1 controller. This handy little<br />
device was sent to me by our<br />
great friends at www.growgps.com.<br />
This is truly a multi-function unit<br />
and deserves some attention.<br />
This is a CO2 parts per million<br />
controller that “sniffs” the air by<br />
means of a cleverly mounted sensor<br />
on a sixteen foot cable—very cool!<br />
But more on this later.<br />
This great little unit is a real powerhouse<br />
of control. Not only does it<br />
monitor and maintain a consistent<br />
level of CO2 in your grow space, it<br />
also monitors and controls heating<br />
and cooling, as well as relative<br />
humidity. Trust me: if you have a<br />
grow space, you are going to want<br />
to pay some attention to these factors<br />
as we all know just how criti-<br />
112 - <strong>Treating</strong> <strong>Yourself</strong>, <strong>Issue</strong> 16 - 2009<br />
by Arizer.com<br />
by Gord Hume<br />
partially disabled ex CDN Armed Forces Mechanic.<br />
Federally exempt medical marijuana grower-consumer.<br />
cal they are in strong healthy plant<br />
growth!<br />
The CHHC-1 is hugely configurable,<br />
can be set in a multitude of<br />
ways and provides a huge amount<br />
of data. It can turn on a vent fan or<br />
even an air conditioner to help<br />
maintain a steady room temperature,<br />
and it can turn on a heater to<br />
keep your babies warm during the<br />
night. Relative humidity is also<br />
controllable by means of a dedicated<br />
plug in for your dehumidification<br />
device. Let’s not forget it also<br />
allows for very precise control of<br />
CO2 levels in the grow space.<br />
All of these factors can be set with<br />
minimum and maximum values<br />
and data is collected and logged<br />
daily by the unit to help you fine<br />
tune your room. There are two<br />
modes of CO2 generation, with the<br />
first via means of a propane burning<br />
CO2 generator. The second is<br />
“fuzzy logic” mode, strictly for use<br />
with bottled CO2 gas. There is<br />
even the option for a data link so<br />
that the unit can be connected to a<br />
computer for further control and<br />
data gathering purposes.<br />
The unit is very well constructed<br />
using heavy-gauge industrial-grade<br />
plastic. All factory-provided cables<br />
are of very good quality and are<br />
well-attached with proper strain<br />
relief connectors. The unit is capable<br />
of handling a total of 15 amps<br />
of current at the outlets. The control<br />
box is easily mounted by<br />
means of a cleverly designed wall<br />
bracket.<br />
Once mounted, all you need to do<br />
is place the remote sensor in a location<br />
of your choosing. The remote<br />
sensor records CO2 in parts per<br />
million as well as day or night time<br />
temperature and humidity. I put<br />
mine right inside the plant canopy,<br />
allowing me to monitor the envi-
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