Speedrite 12000i - 110V AC OR 12V Battery Powered Unigizer 

FREE U.S.A. SHIPPING TO THE  LOWER 48 STATES

FREE SINGLE LIGHT FENCE TESTER INCLUDED

(REMOTE SOLD SEPARATELY)

Take total control of your fencing system with the Speedrite 12000i Unigizer

—a high-performance energizer built for serious farmers who need power, flexibility, and advanced control.

Designed for medium to large operations, this best-selling unit can energize up to 90 miles or 500 acres of fence, delivering an impressive 12 joules of output energy (16 joules stored). Whether you’re managing cattle, horses, or smaller livestock, the 12000i provides the strength and reliability to keep everything exactly where it should be.

Versatility is at the core of this powerhouse. Run it your way—110V AC, 12V battery, or solar setup—making it perfect for both on-grid and remote applications. Pair it with a solar panel (recommended 120W), and you’ve got a self-sustaining system ready for even the most isolated pastures.

What sets the Speedrite 12000i apart is its smart technology. With Cyclic Wave™ technology, it sends a cleaner, more efficient pulse down the fence line for maximum performance. Bi-polar technology ensures strong operation even in dry or low-conductivity soils, where other energizers struggle.

Stay in control like never before. The unit is remote-capable (remote sold separately), allowing you to turn your fence on or off from anywhere along the line—saving time during maintenance and repairs. Meanwhile, the backlit LCD displayand LED indicator bar give you instant insight into voltage levels, battery condition, and fence performance.

Built for real-world use, it includes:

• Battery-saving microprocessor to extend battery life

• Day/Night sensor to automatically adjust pulse speed

• Ground monitoring system to detect faults

• Large, easy-connect terminals for secure wiring

• Low impedance output to power through heavy vegetation

Installation is flexible and straightforward—mount it on a wall, post, or fence wire, indoors or outdoors depending on your setup.

Bonus: Enjoy FREE U.S. shipping (lower 48 states) and a FREE single-light fence tester included so you can monitor your fence right away.

Backed by a 3-year warranty (including lightning damage), the Speedrite 12000i is built to perform and built to last.

If you need a powerful, intelligent, and adaptable energizer that can handle demanding conditions, this is the one that delivers—day in, day out.

The speedrite 12000i is our best-selling model for large to medium size farms.

The speedrite unigizer delivers a powerful punch and suitable for all types of livestock including cattle, horses, and small animals.

Fully featured. Remote control capable. Can be used in 110V, battery or solar power applications, providing convenient, versatile livestock control.

Powers up to 90 miles (500 acres) of fence
12 J maximum output energy (16 J stored energy)

• Cyclic Wave™ technology.  Provides a cleaner, more powerful pulse, maximizing the energy that travels down the fence for optimal stock control

• Bi-polar technology.  Enables the user to power a fence system to perform exceptionally well in dry, low conductive soil

• Solar compatible.  Electrify your fence with solar power by connecting solar panels to any Speedrite Unigizer. The solar panels charge the battery connected to the Unigizer, for reliable livestock control.  Recommended solar panel - 120 watt

• Remote capable (remote sold separately ST102).  Using a Speedrite fence remote (with remote capable Speedrite energizers) enables you to switch the energizer on or off from anywhere along the fence line.  This makes it easy to manage repairs and maintenance. Email us at valleyfarmsupply@aol.com to purchase a speedrite remote/fault finder.

• LCD Voltage Display.  Displays output voltage, battery voltage and earth voltage. LCD is backlit for viewing in poor light conditions

• Indicator lights.  Easy to read light bar display provides an instant measure of the Unigizer output voltage and battery condition for quick fence diagnostics. The LED display shows red when heavily loaded

• Battery saver.  Microprocessor technology automatically adjusts the output energy depending on the battery condition. This feature extends battery life and is particularly efficient when used in solar installations

• Day/Night sensor.  Automatically adjusts pulse speed to contain or exclude animals based on day or night conditions

• Large terminals.  Mounted on the front of the energizer casing for convenience, these large terminals are easily adjusted and accept up to two fence wires. The slotted terminals make inserting wires and getting a good connection easy

• Low Impedance.  Designed to deliver power to the end of the fence even under heavy load e.g. foliage, undergrowth

• Low Interference.  Cyclic Wave™ technology delivers outstanding fence performance and helps to minimize electromagnetic interference in line with international EMC standards

• Ground monitoring.  Indicates ground system problems by monitoring the level of voltage around the ground system

• Versatile mounting options.  Can be mounted on a wall, post or fence wire. Choose indoor or outdoor installation, depending on your fence location and power supply

Adjustable power and pulse speeds

Half voltage terminal.

Includes 110V power adaptor and battery leads.

Warranty information

3 year (includes lightning) Warranty

Technical Specifications

Physical Details

Part# 814086 or 880 0000-838