Nemtek Merlin Stealth M18S

Merlin Stealth M18S (E-M18S/V1) · Nemtek

The unit that powers an electric fence and raises the alarm.

Check this: Merlin M18S: Nemtek's spec tables give the output shown here (7.6 J) and 8 h battery standby; its product page says 6 J and 6 h. Ask which figure applies.

Where to buy

Durban

ShopListed asPrice seen
Security Superstore (Durban)NEMTEK - Merlin Stealth - M18S - 1 Zone 8 Joule–listing
Vedocor SystemsMerlin Stealth M18s 8j Single ZoneR 4 130listing

Johannesburg

ShopListed asPrice seen
iotrendNemtek Merlin Stealth M18S Energizer–listing
SecureRite DistributorsNemtek Merlin M18S Single Zone Electric Fence Energizer–listing
Security KingNemtek Merlin Stealth M18S Energizer–listing
The Security ShopMERLIN STEALTH M18S ENERGIZERR 4 350 VAT not statedlisting

Cape Town

ShopListed asPrice seen
Security Superstore (Cape Town)NEMTEK - Merlin Stealth - M18S - 1 Zone 8 Joule–listing

Pretoria

ShopListed asPrice seen
Alectra Solutions (Hatfield)Nemtek Merlin Stealth M18S Single Zone Electric Fence Energizer–listing
Security Superstore (Pretoria)NEMTEK - Merlin Stealth - M18S - 1 Zone 8 Joule–listing
Security Warehouse (SCW) public shopNEMTEK Merlin Stealth M18S 7.6J Single Zone EnergiserR 5 089listing

Ekurhuleni

ShopListed asPrice seen
MSL Security ProductsNemtek Energizer - Merlin Stealth M18S 8J 1ZR 5 457 VAT not statedlisting

Maker's numbers

Typesingle-zone, mains with battery back-up
Output energy7.6 J
Stored energy–
Max fence length–
Zones1
Battery backup12V 7Ah built-in; 6hrs standby (fully charged)
Displayno
Alarm outputssiren and strobe light outputs; two gate alarm inputs; connects to armed-response radio or GSM module
CertificationTest report and CE certificate PDFs on the maker page
Warranty2 years

Source: maker's datasheet or product page (Nemtek product page Specifications (and identical generated brochure PDF), read 2026-11-07; warranty, battery and siren/strobe outputs from Nemtek's installer manuals and Energizer Specifications PDF).

Related: The electric-fence certificate · Gate motors.