Merlin Gas Detector iS


The iS range of gas detectors are used in various applications such as boiler/plant rooms, hospitals, laboratories and high rise buildings. These sensors are specifically built to work with all Merlin control panels and can also be used direct with BMS control panels.

The clear digital TFT display allows the user to clearly see the current gas levels and the traffic light indicator will summarise the gas levels.

Natural Gas
Carbon Monoxide
Carbon Dioxide
Nitrogen Dioxide
Refrigerant R-1234yf, R-1234, R-134a, R32, R-404a, R-407c, R-410a, R-454a, R-454b, R454c, R-455a (40 gases available)

These recommended heights may vary based on air flow and temperature conditions in addition to the proposed application and location:

Target Gas
Typical Detector Position
Natural Gas/Methane (NG/CH4)
High Level – 300mm (1ft) from ceiling
Liquid Petroleum Gas (LPG)
Low Level – 300mm (1ft) from ground level
Carbon Monoxide (CO)
Breathing Zone – 1700mm (5ft 6”) from ground level
High Level – 300mm (1ft) from ceiling

• 24VAC or DC Powered
• Displays Live Gas Levels & System Status Indications
• Traffic Light Indication
• Built-In Audible Alarm
• Three Alarm Relay Outputs
• 0-10VDC Variable Output
• BMS/BAS standalone compatibility
• Various gas detector types available
• End of Life Reminder
• Covered by S&S Northern Ltd 3 year warranty.

• Height – 151mm
• Width – 111mm
• Depth – 50mm

S&S Northern Product Catalogue
S&S Detector i-S NG Manual
S&S Detector i-S LPG Manual
S&S Detector i-S H2 Manual
S&S Detector i-S CO2 Manual
S&S Detector i-S CO Manual
S&S Detector i-S Refrigerants Manual