ALiEn²

ALiEn² is a certified standalone controller built for high gas/liquid ratio wells experiencing liquid loading. It adjusts automatically, optimizing the well with far less manual intervention and fewer trips to the wellsite.

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1–3

Valve outputs

Zone 0 / Div 1

Certified, Class I

RS-485

Modbus, SCADA-ready

−40 to +149°F

Operating range

ALiEn² controller with the door open, showing the display, keypad and quick-reference card

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Display and Keypad

Numeric and navigation interface for full setup and monitoring on site, no laptop needed.

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Locking Door

Secures settings and internals from tampering.

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Powder Coated Steel Enclosure

Type 4 rated, Class I, Zone 0 certified.

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Flexible Connector and Solenoid Locations

Wire and plumb it to suit the wellhead layout.

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Universal Mounting

Fits a wide range of wellhead configurations.

More views & accessories

An operator using the ALiEn² controller at a wellsite

In the field

On the wellhead

Upgrade kit with Vision Link

Solar mounting bracket

Battery charger

Pressure sensor

ALiEn² plunger lift controller

ALiEn² controls one to three valves based on user-defined and real-time well parameters, helping remove accumulated liquids from high gas/liquid ratio wells. It works as a standalone controller on site, or as part of a SCADA-connected system when remote monitoring is needed.

Supports up to three valve outputs, pneumatic or electrically controlled
Pressure optimization across Line, Tubing, Casing, and Differential inputs
Adaptive Seeking Velocity Optimization
Operates from -40°F to +149°F
Stores the last 25 cycles and 14 days of history on site
RS-485 Modbus communications, Client and Server

Specification	ALiEn²
Operating Temp	-40°F to +149°F (-40°C to +70°C)
Current Draw	Typ. – 0.5 mA, Max. – 190 mA
Battery	6 V, 8 Ah
Valves Supported	1-3 (Sales, Valve B, Auto Catch)
Solar Panel	6 V, 1.1 W
Arrival Sensor	Cyclops, Sasquatch, and Most 2 or 3 Wire Arrival Sensors.
Other Inputs	Line Pressure or Tubing Pressure Casing Pressure or Differential Pressure Inputs Can be Dry Contact Switch, 0.5 V to 4.5 V Sensor, or Virtual
Cycle History	Last 25 Cycles Locally Stored
Daily History	Current Day + 14 Previous Days Locally Stored
Communications Interface	2 wire RS-485 Modbus Client (Master) 2 wire RS-485 Modbus Server (Slave)
Certifications	Class I, Zone 0, Ex/AEx ia [ia] IIB Class I, Division 1, Groups C and D

Arrival sensors: Cyclops, Sasquatch, and most 2 or 3-wire arrival sensors
Pressure transducers: Line, Tubing, Casing, Differential, plus dry contact switches or virtual Modbus
Communications: RS-485 Modbus for remote monitoring and control
Software: Vision Device Management via the Link adapter for firmware updates and configuration

Configurations & Support

Model

ALiEn²

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The ALiEn² difference

The most capable controller in its class

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Capability

The most feature-rich controller in its class

ALiEn² offers optimization capabilities for pressure, flow, and time-based control, and runs on multiple algorithms, including the patented Adaptive Seeking Velocity Optimization, which adjusts based on average or instantaneous velocity. It supports up to three valves, with configurable alarms that protect wellhead equipment, and remote visibility and control that work with any SCADA system.

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Reliability

Engineered to keep working, year after year

ALiEn² holds up in the field because it's thoughtfully designed, built with high-quality components, and meticulously manufactured. Firmware is field programmable and upgradeable, so new capabilities can be added without new hardware. Standard maintenance stays simple with replacement parts that are easy to find.

Support

World class support, backed by our reseller network

A fully operational product simulator supports training, testing, and troubleshooting, backed by the largest and most diverse reseller and support network in the industry, plus a searchable online knowledgebase.

Certified for the field

Extreme conditions. Zero compromise

ALiEn² is certified Class I Zone 0, Class 1 Div 1, exceeding typical U.S. certification standards. It’s built to operate reliably from -40°F to +149°F, and can be installed in the most hazardous well site zones, with configurable alarms.

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What you can expect

Conditions change. ALiEn² adjusts so you don't have to

ALiEn² is built to make well optimization simpler, safer, and easier to sustain, from day one and every day after.

Improved, predictable production

ALiEn² stabilizes and improves production rates, with sustained performance that holds up as the well evolves.

Less time, fewer trips, lower costs

Automatic optimization means less operator time spent managing the well, fewer unplanned visits, and lower operating and maintenance costs over time.

Reduced risk, liability, and improved safety

Fewer human errors and unplanned releases protect both people and equipment, while helping meet compliance requirements.

Data you can trust and act on

Monitor and maintain your well locally, or analyze via your preferred AI, or modeling tools, to continuously improve well performance.

Frequently asked questions

What you need to know about ALiEn².

Does it work with pneumatic and electric valves?

It works with pneumatic and electric valves. Learn more about electric valves here.

What SCADA systems will it work with?

ALiEn² will work with any SCADA system that supports standard Modbus. You can choose to implement your own solution using our Modbus map or work with one of the many pre-integrated solutions.

Where do I buy one?

Explore our reseller page.

What installation and support resources are available to help me get operational?

A quick install guide and full product manual are available, along with a product simulator for hands-on practice. You also have access to a searchable online knowledgebase, a trained network of resellers, and technical support personnel whenever you need them.

Where can I find support for legacy products?

Our searchable online knowledge base for all our products dating back to 2002.

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