SigDetect Technologies – Visual & Audible Signaling Systems

Who We Are

Your Trusted Signaling Partner

SigDetect Technologies delivers turnkey visual and audible signaling solutions, ensuring compliance and safety performance across South Africa's most demanding industrial environments.

We close the safety gap — from hazard detection to human response — using the Pfannenberg VAM 3D Coverage methodology, the same engineering rigour applied to gas sensor placement.

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Requirements Clarification

We assess your environment, ambient conditions, and coverage targets before recommending any product.

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Environmental Analysis

Ambient noise, lighting, distance, and hazardous zone classifications are all factored in.

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Optimal Sizing & Compliance

Standards-based selection ensures correct product sizing and full regulatory compliance.

VAM

Visual & Audible Mapping

Model — 3D coverage mapped with software

Signal — Alarm seen & heard by personnel

Respond — Complete safety chain achieved

Coverage Method

What We Do

Our Services

End-to-end alarm engineering for every industrial application — from hazardous zones to control panels.

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Hazardous Areas

ATEX-certified visual and acoustic alarms for Ex Zones 0, 1, 2, 21, and 22. Corrosion-resistant, explosion-proof housing for the most demanding environments.

Zone 1 & 2 Zone 21 & 22 ATEX

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Machinery & Production

High dB(A) sounders with pre-alarm and main alarm capability. Robust housing rated for SIL 2 / PL d safety integrity levels across production lines.

SIL 2 PL d Pre-alarm

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Process & Plant Safety

Flashing sounders with error-proof installation and excellent acoustic penetration. Designed for process plant compliance and plant-wide coverage.

Process Safety Xenon Flash

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Fire Alarm Systems

Compact multi-colour LED sounder/light combinations with low power draw. Certified for Ex-Zone 0/1/2, ideal for direct machine control and fire safety.

Ex-Zone 0/1/2 Multi-colour Low Power

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Outdoor & Harsh Environments

Xenon flash beacons with high audibility and visibility, resistant to vibration, dust, and impact. Built for outdoor industrial and offshore applications.

IP66/67 Vibration Proof Dust Proof

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VAM Design Service

Full Visual & Audible Mapping assessment using the PSS calculation tool. We scientifically verify alarm coverage before installation — no blind spots guaranteed.

3D Modelling PSS Software Turnkey

Product Catalogue

Pfannenberg Product Range

Signalling Technologies

Signalling Product Range

Visual & Audible

SDT-PRO X 10-05

Sounder & Beacon for demanding industrial environments. Reliable, highly perceptible acoustic and visual signaling with 80 selectable tones and 3 externally selectable tones.

Tones80 selectable

SafetySIL 2 / PL d

SDT-PRO X 10-05

ATEX Certified

SDT-BExCS110-05D

ATEX sounder/flashing light combination for hazardous areas. Certified 2G (Zones 1 & 2) and 2D (Zones 21 & 22). Corrosion-resistant with 5 J xenon flash.

Zone1, 2, 21, 22

Flash5 J Xenon

SDT-BExCS110-05D

Ex Zone 0/1/2

SDT-IS-mC1

Compact LED blinking light and sounder combination. Cost-effective, multi-colour, certified for Ex Zones 0, 1, and 2 with 49 loud tones at 102 dB(A).

Output102 dB(A)

Tones49 selectable

SDT-IS-mC1

High Efficiency

SDT-PA X 1-05

New generation combined sounder and beacon delivering up to 105 dB(A) acoustic output with a 5 J xenon flash. Error-proof installation with excellent acoustic penetration.

Output105 dB(A)

Flash5 J Xenon

SDT-PA X 1-05

ATEX Flash Light

SDT-F12-3G/3D

Delivers 7.5 J bright light impulses for highly visible signaling. Suitable for indoor and outdoor use. Certified Zone 2 & 22 and approved for fire alarm systems.

Energy7.5 J

Zone3G / 3D

SDT-F12-3G/3D

Aviation Obstacle

SDT-POL 32 / SDT-POL 10

LED obstacle lights providing 360° omnidirectional illumination for aviation obstacle marking. Fully compliant with ICAO Annex 14, Volume 1, Chapter 6.

Coverage360° Omnidirectional

StandardICAO Annex 14

SDT-POL 32 / SDT-POL 10

SIL ATEX Sounder

SDT-PRO 10 SIL

SIL ATEX Protect Sounder with up to 116 dB(A). Robust cast aluminium housing designed for explosive environments (Zone 2/3G and Zone 22/3D) with SIL 2/PL d.

Output116 dB(A)

Zone2/3G & 22/3D

SDT-PRO 10 SIL

ATEX IECEx

SDT-BExS 120 dB(A)

Delivers up to 120 dB(A) with 32 selectable tones including UKOOA/PFEER signals. Certified ATEX and optionally IECEx for Zones 1 & 2 and Zones 21 & 22.

Output120 dB(A)

Tones32 selectable

SDT-BExS 120 dB(A)

Signal Tower

SDT-BR 50

Modular, rugged signal tower for machine status indication and warning in demanding indoor and outdoor environments. Up to five plug-in colour modules.

ModulesUp to 5

ColoursR, A, G, B, W

SDT-BR 50

LED Traffic Light

SDT-PY L-S-TL

Compact, configurable LED traffic light. Supplied pre-assembled or customised with 2 or 3 LED stages, optionally combined with a PA1 sounder for complete signaling.

Stages2 or 3 LED

OptionsWith/without sounder

SDT-PY L-S-TL

Panel Buzzer 22.5mm

SDT-P 22 DBZ

Acoustic signaling device for 22.5 mm mounting holes. Offers both continuous and pulsating tones in a single compact panel-mount unit.

Mounting22.5 mm

ModesContinuous + Pulsating

SDT-P 22 DBZ

Panel LED Indicator

SDT-P 22 D / SDT-P 22 DFS

Panel mount LED indicators providing continuous (P 22 D) or blinking (P 22 DFS) signaling for 22.5 mm mounting holes. IP65 protection. Available in 5 colours.

ProtectionIP65

ColoursR, A, G, W, B

SDT-P 22 D / DFS

Where We Operate

Industry Application

Our signaling solutions are deployed across South Africa's most demanding industrial sectors — wherever safety, compliance, and reliability are non-negotiable.

Manufacturing

Machine safety alarms, production line signaling and process control indicators.

Food & Beverage

Hygienic-rated sounders and beacons for packaging lines and conveyor systems.

Water & Wastewater

IP-rated outdoor signals for pump stations, treatment plants and pipeline networks.

Warehousing

Forklift warning systems, dock alerts and multi-zone audible coverage for logistics facilities.

Energy & Utilities

ATEX-certified devices for substations, power generation and high-voltage environments.

Chemical Storage

Ex-Zone rated sounders and beacons for flammable, toxic and explosive hazardous areas.

Signaling &DetectionTurnkey Solutions