Sensidyne Gas Detection

SensAlert Plus Point Gas Detector

Advanced Point Gas Detector for Critical Safety Applications.

SensAlert Plus Point Gas Detector

Universal Point Gas Detector Accepting Combustible (Infrared or Catalytic), Toxic, and Oxygen Gas Sensors.


  • Highest Reliability and Function

    • Predictive Sensor End-of-Life Indication 
    • Missing or Non-functional Sensor Indication 
    • Sensor Test-On-Demand, with On-board Gas Generator
  • Intrinsically Safe Sensor Head

    • Shop Calibrate and Hot-swap Gas Sensors in Classified Areas
    • Mount Sensor up to 100 ft./30 m. away Without Rigid Conduit
  • Intelligent SensAlert Plus Sensors

    • Auto-recognition and Set-up from Sensor Non-Volatile Memory Provides
    • Operating Parameters and Diagnostics for All Plus Transmitters
  • International Approvals

    • Performance and Hazardous Area Tested and Certified to FM and ATEX Standards
    • Unrestricted Hazardous Classified Area Installation and Operation
  • Flexible Installation or Retrofit

    • 2-Wire and 3-Wire Transmitters with Multiple Enclosure Options
    • Non-intrusive Configuration and Maintenance User Interface
    • Remote Sensor / Gassing, Duct Mount and Sample Draw
    • Configurable Alarms: Gas Alarms, Fault Conditions, and Test-on-Demand

Why Choose SensAlert Plus?

Increased Reliability

Intelligent and dependable firmware monitors the intelligent Plus sensor for changes that could affect performance. Sensor condition and maintenance notifications are displayed locally and can be sent to a controller or facility monitoring system via on-board relays, a virtual relay (assignable to a fault current), RS-485 Modbus, or HART. This thorough system monitoring provides increased reliability.

Simple to Install & Maintain

The SensAlert Plus Intrinsically Safe sensor head can be remote mounted up to 100 feet (30m) from the transmitter providing greater flexibility to position the transmitter in an personnel-accessible location while positioning the sensor closer to potential hazards. A wide range of sensors, accessories and remote gassing/sampling systems further simplify maintenance and provide installation flexibility.

Reduced Cost of Ownership

Shop or field calibrate, then swap sensors under power to minimize maintenance and calibration time. A large backlit alphanumeric display with a non-intrusive user interface allows for configuration, setup, and data review without declassifying a hazardous area. SensAlert Plus is a universal transmitter allowing equipment standardization across gas types, sensor technologies, and sensor ranges.

Click on a file below to open. Visit our Technical Library for extended documents and resources.

Filename Filesize
/home/asens/public_html/Support Library/gas-detection/SensAlert Plus
Battery-Room-Gas-Monitoring.pdf 1.25 MB
Battery-Room-Gas-Monitoring_Application-Note.pdf 671.5 kB
Mounting Bracket 821-0213-01.pdf 26.88 kB
Oxygen_Deficiency_SensAlarm_Datasheet.pdf 310.62 kB
Plus Series 821-0235-01 4NPT PIPE Mount. 360-0163-01r2.pdf 69.83 kB
Plus Series Moisture Barrier 360-0169-01rA.pdf 138 kB
Plus Series Remote Cal accessory 360-0096-01rF.pdf 171.92 kB
Plus Series Remote Kit manual 360-0092-01rG.pdf 1.73 MB
Power_Plant_Gas_Detection_Applications.pdf 484.47 kB
PVC BushingSensorMounting 821-0209-05.pdf 93.88 kB
SA+_FM_Release_Document.pdf 2.43 MB
SA+_Power_Industry_Application_Note.pdf 1020.09 kB
SA+_SCR_Ammonia_Application_Note.pdf 1.45 MB
SA+_Waste-Water_Industry_Application_Note.pdf 870.15 kB
SensAlert-Plus User's Manual-360-0087-02rU0.pdf 5.09 MB
SensAlert Plus 3wire isolator 821-0225-01 360-0137-01rB_Inst Sht 3-Wire Isolator.pdf 279.85 kB
SensAlert Plus 10 Watt Power Module Manual 360-0185-01rB.pdf 338.18 kB
SensAlert Plus Duct Mount Kit Manual 360-0093-01rD.pdf 121.93 kB
SensAlert Plus galvanic isolator 821-0224-01 360-0121-01rB 2 WIRE ISOLATOR.pdf 145.05 kB
SensAlert Plus HART 360-0095-01rG.pdf 862.58 kB
SensAlert Plus Modbus 821-0221-01 360-0099-01rG.pdf 250.5 kB
SensAlert Plus Relay Board 821-0219-01 360-0109-01rB.pdf 141.84 kB
SensAlert Plus transmitter manual 820-0204-01 820-0206-01 360-0087-02rP1.pdf 3.42 MB
Sensidyne_Gas-Detection-for-Acetylene.pdf 2.06 MB
Sensidyne_Gas-Detection-for-Ammonia.pdf 4.72 MB
Sensidyne_Gas-Detection-for-Ammonia_PRESS.pdf 4.89 MB
Sensidyne_Gas-Detection-for-Ice-Arenas.pdf 1.69 MB
Sensidyne_Gas-Detection-for-Natural-Gas-Processing-Plants.pdf 2.39 MB
Sensidyne_Gas-Detection-for-Natural-Gas-Processing-Plants_PRESS.pdf 2.85 MB
Sensidyne_Gas-Detection-for-Pulp&Paper-PRESS.pdf 3.25 MB
Sensidyne_Gas-Detection-for-Pulp&Paper.pdf 2.46 MB
Sensidyne_Gas-Detection-for-Pulp-and-Paper.pdf 3.54 MB
Sensidyne_Gas-Detection-for-Sewage-Collection-Processing-Plants-PRESS.pdf 3.17 MB
Sensidyne_Gas-Detection-for-Sewage-Collection-Processing-Plants.pdf 2.65 MB
Sensidyne_Gas-Detection-for-Waste-Water-Processing-Plants_PRINT.pdf 3.06 MB
Sensidyne_SensAlert-Plus_2-Wire_Datasheet-4p 820-0203-01 820-0205-01.pdf 3.4 MB
Sensidyne_SensAlert-Plus_Datasheet-4p 820-0204-01 820-0206-01.pdf 4.34 MB
Sensidyne_SensAlert-Plus_Datasheet-4p_LowRes 820-0204-01 820-0206-01.pdf 626.59 kB
Sensidyne_SensAlert-Plus_Datasheet-4p_SMALL 820-0204-01 820-0206-01.pdf 1.06 MB
Sensidyne_SensAlert-Plus_Datasheet-4p_submittal 820-0204-01 820-0206-01.pdf 4.88 MB
Sensidyne_SensAlert-Plus_Datasheet-4p_submittal_LowRes 820-0204-01 820-0206-01.pdf 613.91 kB
Test-on-Demand Tech Sheet 821-0204-02 821-0204-06.pdf 52.85 kB

Click on a file below to open. Visit our Technical Library for extended documents and resources.

Filename Filesize
/home/asens/public_html/Support Library/gas-detection/Plus Series Sensors
Acetylene Infrared 50 Percent LEL 823-0249-51rB C2H2-IR 50LEL sensor.pdf 31.61 kB
Ammonia 50ppm 823-0201-22rC NH3 50ppm sensor specs.pdf 200.59 kB
Ammonia 100ppm 823-0201-21rD NH3 LI sensor specs.pdf 200.31 kB
Ammonia 250ppm 823-0301-43rA NH3 sensor spec.pdf 31.27 kB
Ammonia 300ppm 823-0201-41rE NH3 300ppm sensor.pdf 186.87 kB
Ammonia 500ppm 823-0201-42rD NH3 500ppm sensor.pdf 187.12 kB
Bromine 1ppm 823-0222-41rA Br2 1ppm sensor spec.pdf 31.24 kB
Bromine 10ppm 823-0222-21rC Br2 10ppm sensor specs.pdf 31.24 kB
Bromine Br2 1ppm 365-2222-22rA sensor specs.pdf 32.07 kB
Carbon Dioxide Infrared 5 percent by vol 823-0205-53rA CO2 sensor spec.pdf 28.09 kB
Carbon Monoxide 100ppm 823-0219-23rC CO-F 100ppm sensor specss.pdf 41.72 kB
Carbon Monoxide 500ppm 823-0219-22rC CO-F 500ppm sensor specs.pdf 41.73 kB
Carbon Monoxide H2 Filtered 100ppm 823-0219-41rD CO-LI 100 ppm Sensor.pdf 47.06 kB
Carbon Monoxide H2 Filtered 500ppm 823-0219-42rD CO-LI 500 ppm Sensor.pdf 47.21 kB
Carbon Monoxide H2 Filtered 1000ppm 823-0219-43rC CO-LI 1000 ppm Sensor.pdf 47.28 kB
Chlorine 5ppm 823-0202-22rC CL2 5ppm sensor specs.pdf 42.3 kB
Chlorine 5ppm H2S tolerant 823-0202-42rA Cl2 5-S ppm sensor spec.pdf 35.47 kB
Chlorine 10ppm 823-0202-21rD CL2 10ppm sensor specs.pdf 41.43 kB
Chlorine 10ppm H2S tolerant 823-0202-41rA Cl2 10-S ppm sensor spec.pdf 35.41 kB
Chlorine 20ppm 823-0202-23rB CL2 20ppm sensor specs specs.pdf 32.32 kB
Chlorine 100ppm 823-0202-43rA Cl2 100 ppm sensor spec.pdf 34.98 kB
Chlorine Dioxide 1ppm 823-0239-41rD ClO2 1ppm sensor.pdf 182.03 kB
Chlorine Dioxide 5ppm 823-0239-42rD ClO2 5ppm sensor.pdf 144.24 kB
Combustible Catalytic Bead 0-100 Percent LEL 823-0211-31rD CMB-CB sensor specs.pdf 70.26 kB
Combustible Infrared 0-100 Percent LEL 823-0211-51rE CMB-IR sensor specs.pdf 189.09 kB
Diborane 1ppm 823-0229-21rB B2H6 1ppm sensor.pdf 48.83 kB
Ethylene oxide 10ppm 823-0245-21rF ETO 10ppm sensor.pdf 177.09 kB
Ethylene oxide 500ppm 823-0245-22rA ETO 500ppm sensor.pdf 32.89 kB
Fluorine 10ppm 823-0215-21rA F2 10ppm sensor specs spec.pdf 30.11 kB
Fluorine 25ppm 823-0215-22rA F2 25ppm sensor spec.pdf 30.13 kB
Germane 1ppm 823-0230-21rB GeH4 1ppm sensor.pdf 48.73 kB
Hydrogen 0-4 Vol 100 Percent LEL Elec Chem Sensor 823-0210-61.pdf 173.63 kB
Hydrogen 1000ppm 823-0210-21rC H2 1000ppm sensor specs.pdf 41.53 kB
Hydrogen Catalytic Bead 0-100 Percent LEL 823-0211-33rC H2 CMB-CB sensor.pdf 168.01 kB
Hydrogen Chloride 10ppm 823-0208-21rE HCl 10ppm sensor.pdf 42.6 kB
Hydrogen Chloride 20ppm 823-0208-22rD HCl 20ppm sensor.pdf 42.52 kB
Hydrogen Chloride 100ppm 823-0208-41rB HCl 100ppm sensor.pdf 49.17 kB
Hydrogen Cyanide 20ppm 823-0203-21rD HCN 20ppm Sensor.pdf 42.55 kB
Hydrogen Fluoride 10ppm 823-0207-21rC HF 10ppm sensor.pdf 41.54 kB
Hydrogen Fluoride 20ppm 823-0207-22rE HF 20ppm sensor.pdf 43.11 kB
Hydrogen Sulfide 10ppm 823-0206-23rB H2S 10ppm.pdf 44.07 kB
Hydrogen Sulfide 50ppm 823-0206-22rC H2S 50ppm sensor specs.pdf 41.77 kB
Hydrogen Sulfide 100ppm 823-0206-21rC H2S sensor specs.pdf 41.82 kB
Methanol 500ppm 823-0253-21rB CH3OH 500ppm sensor.pdf 38.56 kB
Nitric Oxide 100ppm 823-0242-21rB NO 100 ppm Sensor spec.pdf 34.07 kB
Nitrogen Dioxide 10ppm 823-0221-21rE NO2 10ppm sensor.pdf 171.3 kB
Oxygen 25 Percent Vol 823-0240-22rB O2 70X-V.pdf 39.68 kB
Ozone 1ppm 823-0243-21rA O3 1ppm sensor spec.pdf 35.76 kB
Ozone 2ppm 823-0243-22rA O3 2ppm sensor spec.pdf 35.8 kB
Phosgene 1ppm 823-0247-21rC COCL2 1ppm sensor specs.pdf 35.19 kB
Phosphine 1ppm 823-0213-21rB PH3 1ppm sensor.pdf 48.58 kB
Silane 10ppm 823-0214-21rB SiH4 10ppm sensor.pdf 49.26 kB
Sulfur Dioxide H2S Filtered 10ppm 823-0218-22rC SO2-F 10ppm sensor specs.pdf 41.86 kB
Sulfur Dioxide H2S Filtered 20ppm 823-0218-21rC SO2-F 20ppm sensor specs.pdf 41.67 kB