These electronic sounders have been approved for use in potentially explosive atmospheres, hazardous areas and very harsh environmental conditions.
Typical applications are Oil and Gas, On-shore & Offshore, Chemical, Petrochemical, Refineries & Marine locations, etc.
The sounder incorporates a three stage alarm option with sixty three tones to choose from which includes four tones that can be recorded or customised by the installer. All tones can be pre-set during installation.
The design of these alarm sounders allow for termination inside the enclosure. Both the SD125 & SD150 are supplied with a stainless steel mounting bracket as standard.

3 stage alarm with 63 selectable tones
5-20 watts adjustable power rating
Sound output up to 113dB at 1 metre
Volume control
Dustproof and weatherproof
Red (RAL3001)
316 stainless steel or GRP (Glass Reinforced Plastic) enclosure
IP66 / IP67 protection
Temperature -40 to +70°C
Accepts upto ≤2.5mm² incorporating rising clamp protectors
Cable entry 4 x M20
RoHS compliant and CE marked

Conforms to EN (IEC) 60079-0, EN (IEC) 60079-1 and EN54.

Approved by ATEX and CQST , IMETRO and IECEX (pending)
ATEX: II 2G Exd IIC T4 - T6 (incorporating IIA & IIB)
Zones 1 & 2, zones 21 & 22 (pending)

This electronic sounder from Moflash is ideal for use as a warning signal in potentially explosive atmospheres as well as extreme environmental conditions. The explosion-proof signalling device is made of glass-reinforced plastic material for improved resistance to impact and corrosion. It features a three-stage alarm system, with 60 tones you can choose and preset at the installation stage. It also comes with a mounting bracket for simple installation. This type of sounder is commonly used in harsh environments such as factories and refineries.

• Produces 113dB (decibels) of sound at 1m for a highly audible warning signal
• IP66 (ingress protection) rating for resistance to dust and high-pressure water jets
• Design that allows for termination inside the enclosure to prevent flying cables

• Oil and gas industries
• Chemical manufacturing plants
• Petrochemical industry
• Marine applications

The sounder has an adjustable power rating of 5 to 20W, so you can adjust it according to your needs. You can also fit the sounder with a telephone initiation function for greater ease of use.