Nemtek Druid 28 Electric Fence Energizer in Kenya

The Nemtek Druid 28 LCD electric fence energizer is a professional dual-zone security fence controller designed for residential estates, commercial properties, factories, warehouses and other premises that require reliable perimeter protection.

Unlike single-zone electric fence energizers, the Druid 28 controls and monitors two separate electric fence zones independently. Each zone delivers up to 3.7 joules of output energy at a 500-ohm load, making the system suitable for installations that need separate monitoring of different perimeter sections.

The Druid 28 is commonly marketed as an 8-joule electric fence energizer. However, its official specification is 3.7 joules per zone, not 8 joules from each zone.

Manufactured by Nemtek, the Druid 28 features Adaptive Power Technology (APT), a colour-changing LCD, battery backup, gate monitoring and integration with compatible security alarm equipment.

 

Specifications from Nemtek’s April 2025 Druid 25 and Druid 28 LCD technical datasheet. Some Kenyan reseller pages show 18VA and 240V, but the manufacturer’s datasheet specifies 23VA and 230V for the Druid 28.

Two Independently Controlled Electric Fence Zones

The most important feature of the Druid 28 electric fence energizer is its dual-zone design.

The energizer allows two separate fence sections to be monitored and controlled independently.

For example, a property owner may divide the electric fence into:

• Zone 1: Front and side perimeter.

• Zone 2: Rear perimeter and another secured boundary.

If one zone develops a fault, the system can help identify which section requires attention.

Each zone can also be configured independently for on/off operation and high- or low-voltage modes, according to the manufacturer’s supported settings.

This arrangement makes the Druid 28 particularly useful for large compounds where identifying the location of a fence problem is important.

3.7 Joules of Output Energy Per Zone

The Druid 28 delivers 3.7 joules of output energy per zone when tested at a 500-ohm load.

This provides two independently monitored outputs for a professionally designed electric security fence.

The energizer sends short, controlled high-voltage pulses through the connected fence wires.

These pulses act as a security deterrent while the monitoring system checks for faults and interference.

The unit has a specified open-circuit voltage of approximately 9,000 volts.

Actual voltage on an installed fence depends on wire condition, insulation, grounding, vegetation and other electrical loads.

Adaptive Power Technology (APT)

The Druid 28 uses Nemtek’s Adaptive Power Technology to manage electrical power delivered to the fence.

APT helps determine how much power the fence can accept before excessive arcing and energy loss occur.

The technology adjusts the energizer’s operation to improve fence performance and reduce unwanted alarms.

This feature is useful for electric fences exposed to changing weather, moisture and environmental conditions.

However, it does not replace correct earthing, good-quality insulators and regular maintenan

LCD Display for Easier Fence Monitoring

The Druid 28 includes an LCD screen that displays information about the energizer’s operating condition.

The LCD background changes colour to help identify different fence states.

This makes it easier for users and technicians to recognise when the system requires attention.

A clear display is especially useful on dual-zone installations because operators need to understand the condition of each monitored fence section.

Independent Zone Alarm Monitoring

The Druid 28 monitors high-voltage and earth-wire faults.

When a monitored zone develops a fault or tamper condition that exceeds the configured limits, the system can activate the appropriate alarm outputs.

This can help detect certain forms of fence cutting, short circuits, wire interference and damaged insulation.

Independent zone monitoring helps security personnel narrow down the section that needs inspection.

The alarm system must be properly configured and tested by a qualified installer.

Battery Backup During Power Failure

The Druid 28 operates from a 230V mains supply and supports a 12V DC backup arrangement.

The manufacturer’s specifications include a 7Ah internal battery configuration and up to 24 hours of standby operation under stated conditions.

Actual standby time depends on battery health, fence load, operating mode and connected accessories.

The intelligent power-saving function helps extend battery operation during electricity interruptions.

Buyers should confirm whether the rechargeable battery is included in the supplied package.

Built-In Gate Monitoring

The energizer includes a gate alarm input for monitoring a compatible gate contact.

This feature helps detect whether a secured gate is open or closed.

It is useful for apartments, factories, warehouses and business premises where the entrance is part of the protected perimeter.

The gate contact and related wiring may need to be purchased separately.

Optional Keypad and Remote Security Integration

The Nemtek Druid 28 supports compatible optional keypads for control and programming.

It can also connect to suitable radio or GSM communication equipment for integration with security monitoring services.

A relay expansion card can provide additional information outputs for compatible systems.

These features make the Druid 28 suitable for installations that require more than basic electric fence operation.

The keypad, GSM equipment and relay expansion card should not be assumed to be included with the standard unit.

Druid 28 Electric Fence Energizer Price in Kenya 2026

The Nemtek Druid 28 price in Kenya depends on the supplier, warranty, VAT and accessories included.

Reference prices from Kenyan online suppliers checked in October 2026. Glantix lists KSh 54,520 including VAT. These are not confirmed prices at Peter Machines and Spares.The cost of a complete dual-zone electric fence installation is higher because it includes fence wires, brackets, insulators, grounding equipment, accessories and installation labour.

Druid 28 Electric Fence Wire Length Guide

Nemtek provides indicative maximum live-wire lengths for the Druid 28, based on the type and thickness of wire.

These are manufacturer’s guidance figures for total live-wire length in a series circuit, not the physical perimeter distance or a guaranteed installed capacity.For example, if a fence has eight live wires running around a 300-metre boundary, the total live-wire length is approximately 2.4km, excluding extra connections.

The installer must also consider vegetation, joints, earthing and insulation before confirming the energizer’s suitability.

Druid 28 vs Druid 25 Electric Fence Energizer

Both models provide two independently monitored zones. The Druid 28 is better suited to an installation that requires its higher rated output, while the Druid 25 may be sufficient for a lighter fence load.

Druid 28 vs Druid 18: Which Is Better?

The main difference is the number of zones.

The Druid 18 is a single-zone energizer with a higher output rating on one zone, while the Druid 28 provides two independently monitored zones, each rated at 3.7 joules.

Choose the Druid 28 when separate zone monitoring is an important requirement.

Choose the Druid 18 only where the fence design calls for its single-zone configuration and output capacity.

The final choice should be made after assessing the property and the complete fence load.

Benefits of Nemtek Druid 28

• Two security zones: Allows independent monitoring of two fence sections.

• 3.7 joules per zone: Provides controlled output for suitable security fence installations.

• Colour-changing LCD: Makes fence status easier to identify.

• Adaptive Power Technology: Helps manage changing fence loads.

• Battery backup: Supports security during mains power interruptions.

• Independent zone settings: Each zone can be controlled separately.

• Gate monitoring: Supports a compatible gate alarm contact.

• Alarm integration: Can connect to compatible security systems.

• Expandable system design: Supports larger linked installations.

• Walk test mode: Helps technicians inspect fence operation.

Expanding Druid 28 to Four Security Zones

A useful feature of the Druid 28 is its ability to work with other compatible Druid energizers.

Two Druid 28 units can be linked using the appropriate four-zone keypad and supported system configuration.

This creates a system with four independently monitored fence zones.

Nemtek also supports synchronisation through compatible network cabling or satellite-based Druid synchronisation modules.

These options are useful for larger properties where several energizers must work together safely.

Applications of Druid 28 in Kenya

The exact zone layout should be designed by a qualified electric fence installer.

Accessories Required for Druid 28 Installation

A complete installation may require electric fence wire, brackets, insulators, approved high-voltage cable, earth electrodes, warning signs, siren, strobe light, gate contact, backup battery and optional keypad.

For larger systems, compatible relay expansion cards, communication modules and synchronisation accessories may also be required.

Not all these items are included when buying the energizer alone.

How to Choose the Right Druid 28 Energizer

Check Whether You Need Two Zones

If your property requires independent monitoring of two perimeter sections, the Druid 28 provides this capability in one energizer.

Calculate the Total Fence Wire Length

Count the number of live wires and multiply by the physical length of each fence section.

Compare the result with Nemtek’s guidance for the selected wire material, then allow for site-specific electrical loading.

Confirm the Power Supply

The manufacturer’s current datasheet specifies a 230V AC supply and a 12V DC solar/battery supply arrangement.

Any solar or alternative power installation must follow Nemtek’s approved requirements.

Consider Remote Monitoring

If your property needs alerts through a security service or compatible connected platform, confirm the required communication module and software support.

Nemtek’s newer documentation also lists support for Nemtek Connect, compatible Wi-Fi or mobile network connections, and larger systems using the FG7C controller. These features require the appropriate equipment and configuration.

Confirm the Warranty and Package Contents

Before purchasing, check the exact model, included battery, control accessories, warranty and current selling price.

Installation and Safety Guidelines

The Nemtek Druid 28 should be installed by a qualified electric fence technician in accordance with the manufacturer’s instructions and applicable safety requirements.

Correct installation requires suitable grounding, approved insulators, warning signs, secure wiring and protection against accidental contact.

The IPX4 enclosure rating provides limited protection against water splashes. It does not make the unit fully waterproof.

Never connect an electric fence directly to household mains electricity or work on energised fence wires.

The installer should test both zones, the gate alarm, backup supply and connected alarm equipment before handing over the system.

Official instructions are available from the peter machines and spares

Maintenance Tips for Druid 28 Electric Fence Energizer

Regular maintenance is especially important when operating two independently monitored fence sections.

• Check the LCD for warnings from both zones.

• Inspect fence wires and insulators for damage.

• Have vegetation touching live wires removed after safe isolation.

• Check the battery condition and backup operation.

• Test the gate contact and alarm outputs.

• Inspect fence warning signs.

• Arrange periodic professional earthing inspections.

• Check optional keypads and communication equipment.

• Have damaged components replaced by a qualified technician.

Common Druid 28 Problems and Solutions

Where to Buy Nemtek Druid 28 in Kenya

Customers searching for a Druid 28 electric fence energizer in Nairobi can enquire with Peter Machines and Spares about available Nemtek security equipment, electric fence accessories and current prices.

Contact: 0719276999

Website: petermachinesandspares.co.ke

Confirm the current selling price, warranty, battery inclusion and availability before ordering.

Frequently Asked Questions

What is Druid 28?

The Druid 28 is a Nemtek dual-zone LCD electric fence energizer designed for independently monitored perimeter security.

How many joules is Druid 28?

The Druid 28 is marketed as an 8-joule model, but the official output is 3.7 joules per zone at a 500-ohm load.

Is Druid 28 a single-zone or dual-zone energizer?

It is a dual-zone energizer with two independently controlled and monitored security zones.

What is the voltage of Druid 28?

The manufacturer’s specified open-circuit voltage is 9,000 volts.

Does Druid 28 have battery backup?

Yes. It supports a 7Ah battery configuration with a stated standby time of up to 24 hours under specified conditions.

Can Druid 28 work with solar power?

Nemtek’s technical datasheet lists a 12V DC solar and battery supply option. The solar power arrangement must follow the manufacturer’s approved installation requirements.

Can Druid 28 control four zones?

Two compatible Druid 28 energizers can be linked using an appropriate four-zone keypad and supported system configuration.

What is the difference between Druid 25 and Druid 28?

Both have two zones. The Druid 25 delivers 2.4 joules per zone, while the Druid 28 delivers 3.7 joules per zone.

How much is Druid 28 in Kenya?

Recent advertised prices are approximately KSh 47,000–48,720, with VAT treatment varying by supplier.

Can Druid 28 send remote security alerts?

Yes, when connected to compatible communication modules and configured for the required security monitoring service.

Where can I buy Druid 28 in Nairobi?

You can enquire with Peter Machines and Spares on 0719276999 about the Nemtek Druid 28 LCD dual-zone electric fence energizer and compatible accessories.