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1. Introduction

In Kenya, rising security concerns drive the adoption of electric fencing in residential, commercial, and agricultural settings. Choosing the right energizer is vital — it must deliver enough output, be reliable under local climate and power conditions, and offer features that simplify fault detection and integration with alarms.

The Nemtek Wizord 4 is a mid-power energizer in Nemtek’s “Wizord” line, designed for domestic, commercial, and light agricultural use. With a robust design, alarm features, backup battery capability, and reasonable output, it offers a practical balance for many Kenyan users.

This guide covers everything you need to know about the Wizord 4 in the Kenyan context: specifications, real-world performance, installation best practices, maintenance and troubleshooting, comparison with other energizers, price expectations, and useful resources (manuals, YouTube demos).

Contact for Kenya: +254 722 708034 / 0720 456534
Email: info@electricfences.co.ke
Website: www.electricfences.co.ke / www.electricfenceskenya.com


2. What is the Nemtek Wizord 4?

The Wizord 4 is a single-zone electric fence energizer with a nominal output that makes it suitable for moderate fence lengths and security needs. According to local Kenyan listings, it offers around 3.7 joule output energy. It includes built-in alarm monitoring for high-voltage wire and earth loop faults, lightning/surge protection, a backup battery system, and optional connectivity to alarm or GSM systems.

The unit is often used for homes, shops, small farms or perimeter fences where you don’t need extremely high joule capacity but still want a dependable, monitored energizer.


3. Specifications & Features

To properly evaluate whether the Wizord 4 will work for your site, here are the key specs and features, drawn from official and reseller sources:

Parameter Value / Notes
Output energy (at 500 Ω load) ~3.7 Joules (single zone)
Open circuit voltage ~ 8,000 V
Zones monitored One high-voltage zone and one earth loop monitoring
Alarm features Built-in HV alarm, earth loop fault alarm, gate input, siren/strobe outputs 
Power & battery backup Mains 230 V input; internal 12 V, 7 Ah battery backup 
Typical standby time Up to 36 hours on fully charged battery under light load (advertised) 
Power consumption ~18 VA under normal operating conditions 
Physical / Enclosure Dimensions ~285 × 212 × 120 mm automationafrica.co.za+3Iotrend+3Nemtek+3
Weight ~3.1 kg excluding battery, ~5.3 kg including 7 Ah battery Iotrend+2Nemtek+2
Protection / durability IPx4 rating, must be installed in sheltered location to avoid direct weather damage Iotrend+2Nemtek+2
Optional features

The Wizord 4 is marketed as a robust choice for domestic and light industrial installations, with an output of 3.7 J and built-in protection and alarm functionalities. 


4. Real-World Performance & Limits in Kenya

While the specs are useful, what matters most is how well the energizer performs in real Kenyan conditions:

  • Fence length under load: The listed “optimal” lengths (in kilometers) assume ideal conditions (single wire, no vegetation, good earth). Real life will reduce that. For example, InformedStore lists optimal ~3 km with solid wire and up to 5 km under very favorable conditions for the Wizord 4. 

  • Vegetation & leakage: Grass, shrubs or trees touching the fence drastically reduce effective range. Frequent trimming is essential.

  • Earthing quality: Moist, conductive earth significantly improves fence voltage return. In dry or rocky soil, more or deeper earth rods are needed.

  • Power stability: In areas with frequent blackouts, battery backup is critical. The Wizord 4’s 7 Ah battery can provide coverage, but heavy fence load will shorten backup time.

  • Alarm responsiveness: The built-in HV and earth fault alarms help alert technicians quickly to issues, reducing downtime for residents or properties.

In practice, a well-installed Wizord 4 can reliably power up to a few kilometers of fence under moderate load in Kenya, making it suitable for many residential and small-to-medium perimeter needs.


5. Applications & Use Cases in Kenya

Here are common scenarios in which the Wizord 4 is ideal:

5.1 Residential Perimeter Fencing

For homes and estates in Nairobi, Kisumu or Nakuru, the Wizord 4 can secure perimeter walls and gates. Gate alarm input and HV/earth alarms help integrate with home security systems.

5.2 Commercial Properties & Warehouses

Shops, small factories or storage yards with moderate perimeter lengths benefit from the balanced power output and alarm integration features.

5.3 Small Farms & Garden Plots

Farms protecting small fields, livestock paddocks or gardens can use a Wizord 4 to fence areas up to a few kilometers, especially with disciplined vegetation control and good earthing.

5.4 Institutional Sites

Schools, clinics, police stations or government offices can use it for perimeter security, combining battery backup and alarm systems for resilience.

5.5 Temporary or Modular Fencing

In some cases, the Wizord 4 can be used in modular or semi-permanent fencing, especially if the fence line may shift or expand later.

Contact for Kenya: +254 722 708034 / 0720 456534
Email: info@electricfences.co.ke
Website: www.electricfences.co.ke / www.electricfenceskenya.com


6. Installation Best Practices

Proper installation determines whether you’ll get reliable performance. Below are guidelines relevant to Kenyan conditions.

6.1 Site Planning & Survey

  • Map out your fence layout, considering gates, terrain undulations, and possible future expansions.

  • Avoid routing fence lines too close to power lines or sources of electrical interference (motors, transformers).

6.2 Earth / Ground System

  • Use multiple galvanized rods (1.8–2.4 m) in moist ground, spaced several meters apart.

  • Connect the rods with heavy gauge copper conductor.

  • Ensure earth rods are in contact with good moisture or conductive soil.

  • In very dry seasons, supplementary water or conductive medium around the rods may help.

6.3 Mount & Protect the Energizer

  • Mount the Wizord 4 in a sheltered, ventilated place off the ground.

  • Avoid direct exposure to rain or sunlight.

  • Ensure good airflow around the unit and that the case isn’t blocked.

6.4 Wire & Insulator Installation

  • Use quality UV-resistant insulators and proper mounting hardware.

  • Use wire or tape suited to your application (e.g. politape for visibility, polirope for strength).

  • Avoid sharp bends, kinks or tight corners which can degrade insulation.

  • Avoid running high-voltage wiring parallel to low-voltage or signal wiring — separation helps reduce interference.

6.5 Alarm & Gate Inputs

  • Wire the gate input sensor carefully, keeping low-voltage wiring away from HV wiring.

  • Ensure alarm output wiring is routed with proper shielding or spacing to reduce interference.

  • Program the Wizord 4’s alarm thresholds per the user manual to avoid nuisance triggers.

6.6 Testing & Commissioning

  • Power up initially without load, check unit status and alarms.

  • Gradually connect fence lines and measure voltage at the energizer and at representative remote points under load.

  • Test alarm/ fault response and gate sensor logic.

  • Use the walk-test feature to find weak spots before full operation.

  • Document measured values and compare against expected levels.

Using the official manual is critical — Nemtek provides a Wizord 4 installer manual (PDF) that covers wiring diagrams, fault codes, programming, and maintenance. Nemtek+1


7. Maintenance & Troubleshooting

Problems are inevitable over time. Here’s how to maintain and troubleshoot a Wizord 4 installation.

7.1 Routine Maintenance

  • Inspections: monthly check for vegetation contact, broken insulators, corrosion, and loose connections.

  • Voltage logs: record energizer output and end-of-line voltages under load monthly, look for trends.

  • Battery checks: test the backup battery periodically; replace once capacity drops significantly.

  • Surge diverter checks: after storms, inspect lightning protection devices and replace if damaged.

7.2 Troubleshooting Common Problems

Symptom Possible Cause Suggested Fix
Low voltage at end but good at energizer Leakage or contact (vegetation or broken insulator) Trim vegetation, inspect insulators and connectors
Frequent HV/earth alarms Intermittent earth fault or small shorts Check earth continuity, enclosure seals, wiring integrity
Battery not holding charge Battery aging or charger fault Test battery, inspect charger circuit, replace
Nuisance alarms Improper threshold settings or interference Adjust alarm thresholds, re-check wiring layout
Voltage drop after adding load Energizer overloaded Split fence into zones or reduce strand count

Always consult the official user manual for fault codes and diagnostic steps. The Wizord 4 user manual (PDF) is a helpful resource for these diagnostics. automationafrica.co.za


8. Comparisons — Wizord 4 vs Other Energizers

When choosing, compare not just joules but monitoring features, durability, and integration possibilities.

Model Output / Strength Best Use Strengths / Limitations
Wizord 4 ~3.7 J Homes, shops, small perimeters Balanced power + alarm features
Wizord 2 ~2 J Very small plots or domestic use Lower output, simpler features
Druid 15 / 18 / 28 Higher joules & zone monitoring Larger farms, estates, multi-zoned sites More power and diagnostics, more cost
Farm / wildlife energizers Very high joules Large ranches, wildlife fences Powerful, but may lack alarm integration features

In short, the Wizord 4 is a practical step up from entry-level units, offering reliability and features for moderate perimeter security without the cost or complexity of large energizers.


9. Pricing & Availability in Kenya

From listings in Kenya:

  • Ethereal Solutions lists Wizord 4i (Wizord 4 variant) at KES 23,500 with 3.7 J output. Ethereal Solutions

  • Informed Store (Nairobi) lists the Wizord 4 as KSh ~ 23,000 (excluding VAT) for the 4 Joule model. 

  • Glantix lists the Wizord 4i as KSh 24,000 (KSh 27,840 incl VAT) for the Kenyan market.

Prices may vary based on stock, warranty, included accessories (battery, lightning diverter, keypad) and whether installation is bundled. Always confirm what is included.

Buy from authorized dealers to ensure you receive a genuine unit, valid warranty and support for servicing.

Contact for Kenya: +254 722 708034 / 0720 456534
Email: info@electricfences.co.ke
Website: www.electricfences.co.ke / www.electricfenceskenya.com


10. Resources, Manuals & Video Demonstrations

Having access to correct manuals and demonstration videos makes installation and maintenance much easier:

  • Wizord 4 installer manual (PDF) — provides wiring, fault codes, programming instructions and maintenance guidelines. Nemtek+1

  • Specifications Energizers document — Nemtek’s energizer spec sheet listing Wizord models in relation to others. Nemtek

  • YouTube videos / demos — while not always specific to Wizord 4, general Nemtek energizer demo videos help understand operation and wiring. For example, look for “Nemtek energizer demo”, “Nemtek fence energizer tutorial” or “Olarm integration with Nemtek”.

  • Kenyan sales posts — e.g. ElectricFencesKenya posts listing the Wizord 4 energizer in Kenya. Facebook

Before installation, download the manual and review wiring diagrams, fault descriptions, recommended settings and safety instructions.


11. Frequently Asked Questions (FAQs)

Q1: How many kilometers of fence can the Wizord 4 energize in Kenya?
A: Under ideal conditions (single wire, no vegetation, excellent earthing), it may cover 3 km or more. Real-world performance with multiple strands and vegetation will be lower. InformedStore suggests “optimal up to 3 km, maximum up to 5 km” under ideal wire conditions. 

Q2: Will it work during power outages?
A: Yes. The built-in battery backup (12 V, 7 Ah) handles power failures. The standby time depends on how much load the fence draws. The manufacturer advertises up to 36 hours under light load. 

Q3: Is the shock dangerous to humans or animals?
A: No. The pulses are designed to deter, not injure. But safe installation — proper mounting height, warning signs, insulation — is essential.

Q4: Can it integrate with alarm or GSM systems?
A: Yes. Wizord 4 includes alarm outputs and gate sensor inputs and can be connected to radio or GSM modules (depending on accessory availability). 

Q5: What maintenance does the unit need?
A: Regular inspection of wire/insulators, trimming vegetation, checking battery performance, inspecting surge diverters, and periodic voltage logging.

Q6: Is it suitable for small farms?
A: Yes — for farms with moderate perimeter requirements, the Wizord 4 is often a good match. For very long or heavily loaded fences, a higher-joule energizer may be more appropriate.


12. Conclusion & Recommendations

The Nemtek Wizord 4 energizer offers a solid balance of performance, features and reliability for many Kenyan users. For homes, shops, small farms, institutes or moderate perimeter fences, its ~3.7 joule output, battery backup, alarm monitoring and robust design make it a strong choice. It is more capable and feature-rich than entry-level energizers, but less bulky and costly than high-joule farm or multi-zone systems.

If you plan to use Wizord 4:

  • Ensure excellent earthing and vegetation control.

  • Use quality conductor and insulator components.

  • Integrate the alarm outputs and test gate sensor logic if used.

  • Maintain battery health and surge protection regularly.

To get one installed or get a detailed site-specific design for your property in Kenya, feel free to contact us:

Contact for Kenya: +254 722 708034 / 0720 456534
Email: info@electricfences.co.ke
Website: www.electricfences.co.ke / www.electricfenceskenya.com