Hammer and Nemtek are two of the most widely installed electric fence energizer brands in Kenya. Both make single-zone security energizers with battery backup, alarm outputs and a gate input. They differ in how you control them and how much they tell you about the fence. This comparison covers the Hammer EZ range and the Nemtek Druid LCD range.
The ranges at a glance
| Model | Energy rating | Notes |
|---|---|---|
| Hammer EZ 630 | 4 joule | Powers up to 2 km of fence wire (1 mm) |
| Hammer EZ 640 | 5 joule | Powers up to 6 km of fence wire (1.6 mm) |
| Hammer EZ 680 | 15 joule | Powers up to 8 km of fence wire (1.6 mm) |
| Nemtek Druid 13 LCD | 3 joule | Home security |
| Nemtek Druid 15 LCD | 5 joule | Larger homes and compounds |
| Nemtek Druid 18 LCD | 7.6 joule | Long series fences: commercial, industrial, game |
| Nemtek Druid 114 LCD | 13.8 joule | Long parallel fences: farm and game control |
All three Hammer EZ models are limited to a 10 kV maximum output.
Hammer EZ: simple and proven
The EZ range is built around a key switch and a row of indicator lights. What you get on every model:
- Fence return voltage monitoring on a single zone.
- An alarm when the voltage drops below a threshold.
- An auxiliary alarm input for a gate.
- Siren and strobe outputs.
- Battery backup.
- A remote control option.
You can add a Hammer remote keyswitch so the fence can be switched from the house or the guard post, and Hammer LED or Hammer LCD keypads that work up to 100 metres from the energizer.
Best for: buyers who want a straightforward energizer that anyone on site can operate with a key, and that local technicians know well. Spare keys, transformers and HV modules for the 630, 640 and 680 are available.
Nemtek Druid LCD: more information
The Druid range puts an LCD on the front of the unit. What you get:
- A colour-changing LCD. The background colour shows the fence condition at a glance.
- Tag control. A tag is included for switching the energizer.
- Walk test mode for checking the fence after installation or repair.
- A built-in alarm that monitors tampering or faults on both the high-voltage and earth wires.
- A gate alarm input.
- Lightning and power surge protection built in.
- Power saving to extend battery life during outages.
- Connection to an armed response radio or GSM module.
- Optional Druid keypads, up to two per energizer.
Druid LCD energizers also use Nemtek’s Adaptive Power Technology, which detects how much power the fence can take before it starts to arc. That keeps more power on the wire and reduces false alarms.
Best for: buyers who want to see what the fence is doing, link it to armed response or GSM, or need a higher-energy unit for a long perimeter.
Which should you choose?
- A standard home or plot: the Hammer EZ 630 or the Druid 13 both do the job. Choose Hammer for simplicity, Druid for the display and monitoring.
- A large compound or small estate: the Hammer EZ 640 or the Druid 15, both 5 joule.
- A long commercial or industrial perimeter: the Hammer EZ 680 or the Druid 18.
- A farm or game fence: the Druid 114.
Neither range has built-in WiFi app control. If controlling the fence from your phone matters to you, look at the JVA QT13, a 3 joule energizer with a free app.
Whichever you buy
Size the energizer to your actual wire length, earth it with copper rods, and fit lightning protection. Those three decisions affect how well the fence works far more than the badge on the front.
Both ranges are in stock in the electric fencing section of Patsec Security Store.
