Sentinel has taken digital accuracy and combined it with ease of use. Their one-touch functions make using their control systems so easy, reading the manual may not be necessary. Many of their products serve more than one function (such as a heating or cooling controller) making them extremely flexible and capable of being used in many situations.
All Sentinel controllers are designed to maintain a very high degree of reliability while performing critical functions. In some cases, their innovative designs are so unique — there really are no other products available for comparison.
Digital Recycling Timer (DRT-1a)$112.50
With down-to-the-second precision, the Sentinel DRT-1A is designed to control any device that requires a repeating or recycling function. Growers ...
Universal Temperature Controller (UTC-1)$130.50
The Sentinel Universal Temperature Controller offers a very reliable and inexpensive way to automate the temperature of a growing area. ...
Variable CO2 Generator (VCG-27)$612.00
Carbon Dioxide (CO2) is critical for all plants. Normal atmospheric air around the world averages about 380 Parts-Per-Million (PPM.) When ...
Variable CO2 Generator (VCG-6)$469.95
The Sentinel VCG-6 CO2 Generator has two models, the LP (propane) and an NG (natural gas) model. Both come complete ...
CO2 Expansion Regulator (CO2-EXP)$72.00
Sentinel's CO2 Expansion Regulator works with their CO2-REG. When used together, more than 1 tank can be coupled together to ...
CO2 PPM Controller (CPPM-4)$597.50
Are you "guessing" what CO2 level you really have? The CPPM-4 CO2 Controller from Sentinel eliminates guesswork while it controls ...
CO2 Regulator (CO2-REG)$135.00
Compressed CO2 comes in pressurized tanks or cylinders. The gas pressure must be reduced and controlled in order to accurately ...
Cooling – Heating Thermostat (THERM-1)$63.00
The Sentinel THERM-1 provides an easy to use and economical way to control the temperature of air, water or soil ...
Environmental Controller (CHHC-4)$720.00
Welcome to the future... Controlling temperature, humidity and CO2 PPM levels has never been easier. The Sentinel Day/ Night Environmental ...
Environmental Controller (EVC-1)$180.00
Temperature... Humidity & CO2. What do they have in common? They're all environmental conditions inside a growing area that need ...
Environmental Controller (EVC-2)$270.00
Sentinel has combined digital temperature and humidity controls together in one flexible Environmental Controller called the EVC-2. It is EXTREMELY ...
Power Expansion Modules (PXM-2)$108.00
When you need to control larger equipment with higher amperage, the PXM is the answer. Power Expansion Modules increase the ...
Master Digital Timer (MDT-1)$169.50
The Sentinel Master Digital Timer combines the two main timing functions required for hydroponics into ONE convenient package. It combines ...
High Power HID Light Controller (HPH-4)$157.50
When trying to control more than one HID (High Intensity Discharge) lighting system, you can either use a bunch of ...
High Power HID Light Controller (HPH-8)$243.00
Just like it's little brother the HPH-4, the Sentinel HPH-8 Light Controller makes it simple to operate your larger garden ...