Retrofit Air Compressors with
Full Automation
Saving Money and Reducing Downtime
See How it Works

Model R1

for Simplex Air Compressors

The Model R1 saves you money in two major ways:

It always soft starts the compressor unloaded, reducing the startup current and preventing damage to the pump


It calculates and drains the precise amount of condensate from the expansion tank preventing excess air from being wasted and triggering repressurization.

The Model R1 also delivers peace of mind with round the clock line rupture identification which immediately turns the compressor off to prevent burnout.

Model R2

for Dual/Duplex Air Compressors

The Model R2 is for two pump compressors operating with the same expansion tank. It performs all the tasks of Model R1 AND includes the benefit of a digital alternator for the pumps, maintaining equal run time between them.


Equally alternating compressor pump operation reduces the maintenance, extends their lives, and improves their performance.

Connect the Compressors Controllers
with a pair of 16AWG wires in a daisy chain.

Compressor City
Easily Network Multiple Air Compressors Together

Linking multiple reciprocating air compressors of different types, sizes, and brands together is simple to do with the Compressor City connection. Now compressor owners have a reliable retrofit automation solution that provides the flexibility for expansion and adding air compressors.

How The Compressor Controller Works


The Compressor Controller always ensures that the motor is started while it is unloaded reducing startup current and allowing the motor time to warm up before engaging the pump.


The Compressor Controller evenly cycles run time for each pump of a duplex air compressor, preventing overloading, optimizing the air compressor system performance and extending their life.


The Compressor Controller precisely calculates and exactly drains condensate with minimum air loss, preventing unnecessary air waste that triggers repressurization which is unnecessary energy waste.


By precisely calculating and removing condensation, the amount of moisture in the compressed air network plummets oftentimes resulting in no longer needing additional driers.


Single button use displays valuable metrics about air compressor operation including: PSI, compressor pump operating temperature, compressor cycle time and Hobbs hour meter.


The Compressor Controller will automatically detect and alert of leaks or ruptures and maintains a series of operational data records for review with access on the screen.

Frequently Asked Questions

How Does this system compare the other compressor controller systems?

It Does not. We have found that most systems that we have seen are very costly and requires a considerable learning curve – we designed ours to be inexpensive, effective and simple to use.

Can you customize the compressor controller?

Yes, We regularly work with customers to add or extend the functionality of the compressor controller, if you have an interest in customizing your compressor controller, please contact us.

What is the maximum number of compressors I am able to connect?

Unlimited, There is no limit to the number of compressor controllers that can be linked together with our Compressor City networking standard.

What is the warranty on the Compressor Controller?

We offer a 15 day, no questions asked return warranty and a 1 year parts and labor warranty. For full terms see our warranty page.

Do you ship outside the US?

Yes, we do ship internatonally

Have a question? Ask it in the SAM TechTalk Community 


Parameter Component Details Comments
Power Input Power 12V DC , 2W, 0.2A typical
CPU ATmega328p Low-power, CMOS 8-bit microcontroller, AVR® enhanced RISC 20MIPS
Display LCD 20×4 Blue LED back-light
Sensors Temp/Humidity 20..90%±5%RH, 0..50°C±2°C Digital, self calibrating sensor
 Sensors Temperature -40..+125°C, ±2°C, linear ±0.5°C Analog, self calibrating sensor
Relay Output AC or DC 10A 250VAC
Installation IP21 only Indoor or Sealed enclosure
Temperature Operational -10..+60°C
Temperature Storage -20..+80°C
Humidity Operational 10..85%RH, non condensing
Ventilation Cooling convectional
Dimensions Overall 7.1W x 5.4H x 2.3D
 Dimensions Installation Opening 6.6W x 4.7H  typical