Model SA-1XP

Hazardous Location Gas Detection


Model SA-1XP gas detection sensors are designed to detect and monitor toxic gases, oxygen, and combustible gas in ambient air. The design utilizes Safeguard Analytics smart sensor modules which include electrochemical, photo ionization detectors, non-dispersed infrared and a multi spectrum combustible gas detection sensor. Each sensor module stores gas type, measurement range and zero-span calibration data points. The control transmitter consists of a microprocessor-based control circuit, signal conditioning circuitry and a high visibility color graphic digital display.

Certifications (Pending)

Class I; Division 1; Groups BCD

Class I; Zone 1, Group IIB+H2


OpCheck combines continuous supervision of the gas sensor element and associated circuits then adds analysis of performance data during routine calibration to create a high level of safety and reliability in every Safeguard Analytics gas detection sensor. Using the Bluetooth connection and an Android phone or tablet, OpCheck service reports are readily available in single device or site wide formats. The reports can be uploaded via text or email.

Fail Safe Diagnostics

Faults Monitored

Detector  •  Input Voltage  •  Zero Drift •  Signal Loop  •  Processor Memory

Performance Diagnostics

Zero Stability  •  Span Drift  •  Response Time  •  Signal Stability  •  Sensor Life  •  Clearing

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™


  • 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)


  • Safeguard Analytics warrants each new SA-xES to be free from defects in material and workmanship for a period of (2) years from the date of shipment to the original purchaser.
  • Safeguard Analytics warrants each new Smart Sensor Module to be free from defects in material and workmanship under intended normal use.  The warranty period varies by gas.  See the Product Data Sheet for each gas for details.
  • All warranties are FOB the Safeguard Analytics factory located in the Woodlands, Texas, USA.
  • Upon examination by Safeguard Analytics, if a purchased item is found to be defective it will be repaired or replaced at no charge. Safeguard Analytics’ WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the item shows evidence of having been tampered with or shows evidence of being damaged as a result of excessive corrosion; or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating conditions outside of Safeguard Analytics’ control. Components which wear are not warranted.

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