Model SA-1N4

Non-Hazardous Location Gas Detection

  • Electrochemical (Toxic Gases and Oxygen Depletion)
  • Catalytic Bead (Combustible Gases)
  • Photo Ionization Detector (VOC’s)
  • Non-Dispersed IR (Combustible Hydrocarbons and CO2)
  • Molecular Property Spectrometer (Combustible Gases and Refrigerants)

System Specifications

Detector Types

Electrochemical Toxic and Oxygen
Photo Ionization Volatile Organic Compounds
Non-Dispersive Infrared Carbon Dioxide
MP Spectrometry™* Combustible Gases

Detection Method


Indicators-Local Display

Color Graphic Digital Display
Green – Normal Operation No Alarm
Amber – Warning Level Alarm
Red – Danger Level Alarm
Blue- Fault Condition Detected

Faults Monitored

Input Voltage Range
Signal Loop Connection
Zero Drift
Processor Memory

OpCheck Performance Diagnostics

Zero Stability
Response Time
Span Drift
Signal Stability
Sensor Life

User Interface

Magnetic Wand
OpCheck Bluetooth App


2 Years

Electrical Specifications

Input Voltage

10-30 VDC, Nominal 24VDC
Optional 110/220 VAC Module

Power Consumption

Smart Sensor Dependent ~2.5 to 4.5 watts

Analog Output

Linear 4-20 mA DC
0 mA Fault
2 mA Cal Mode
22 mA Over Range

Serial Output

Modbus RTU 9600 bps

Alarm Relays

Alarm Level 1, 2 + Fault
Form “C” Contacts 2A

Environmental Specifications

Smart Sensor Dependent

Operating Temperature Range

Typical -40°F to +158°F, -40°C to +70°C

Operating Humidity Range

Typical 15 – 95% non-condensing

Mechanical Specifications

Enclosure Material



5.5″W x 3.75″D x 5.25”H; 140mmW x 95mmD x 133mmH


1 lb; 453 grams

Specifications subject to change without notice
*Nevada Nano Molecular Property Spectrometry™


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