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Water or air, measure H2S where it matters – right at the source.


Meet the new GS1440 and GS1440EX hydrogen sulfide sensors from Hach. Whether in water or air, you will have the direct H2S measurement you need to optimize your H2S treatment process and proactively control H2S before it causes issues.

Catalog No. Product Net Price
LXV400.99.1H082 SC1000 Probe Module, 6 Sensors with Conduits, Prognosys, Modbus RS485, 110-240VAC with Conduits 1776 
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  • Alarm
  • Low alarm point, low alarm point deadband, high alarm point, high alarm point deadband, off delay, and on delay
  • Analog Output Functional Mode
  • PID, high/low phasing, setpoint, deadband, overfeed timer, off delay, on delay
  • Certifications
  • North American Certifications:cTUVus to UL 61010A-1 and CSA C22.2 No. 1010.1FCC ID QIPMC56 / IC ID 267W-MC56European Certifications:CE per 73/23/EEC and 89/336/EECTUV-GS to EN 61010-1EN 61326 Amd's 1 & 2
  • Communication Capabilities
  • Modbus 485
  • Display
  • 1/4 inch VGA graphical backlit TFT color Glas/Glas-Touch screen, high resistance, 320 x 240 pixels 320 x 240 pixels
  • Enclosure Rating
  • IP65
  • Inputs
  • Up to 12 analogue 0-20 mA, maximum impedance 500 Ohms per probe module. Additional inputs are available with additional probe modules.
  • Material Enclosures
  • ABS (display module) and metal (probe module) enclosure with corrosion resistant finish
  • Operating Temperature Range
  • -20 - 55 °C / 0 - 95% relative humidity, non-condensing
  • Relays
  • No Relay
  • Sensors
  • 6
  • Storage Conditions
  • -20 to 70 °C (-4 to 158 °F), 0 to 95% relative humidity, non-condensing
  • Warranty
  • 12 months
  • Weight
  • Approximately 6.5 kg (depending on configuration)
LXV400.99.1E082 SC1000 Probe Module, 6 Sensors with Conduits, Profibus DP, 110-240VAC with Conduits 1871 
Add to Cart
  • Alarm
  • Low alarm point, low alarm point deadband, high alarm point, high alarm point deadband, off delay, and on delay
  • Analog Output Functional Mode
  • PID, high/low phasing, setpoint, deadband, overfeed timer, off delay, on delay
  • Certifications
  • North American Certifications:cTUVus to UL 61010A-1 and CSA C22.2 No. 1010.1FCC ID QIPMC56 / IC ID 267W-MC56European Certifications:CE per 73/23/EEC and 89/336/EECTUV-GS to EN 61010-1EN 61326 Amd's 1 & 2
  • Communication Capabilities
  • Profibus DP
  • Display
  • 1/4 inch VGA graphical backlit TFT color Glas/Glas-Touch screen, high resistance, 320 x 240 pixels 320 x 240 pixels
  • Enclosure Rating
  • IP65
  • Inputs
  • Up to 12 analogue 0-20 mA, maximum impedance 500 Ohms per probe module. Additional inputs are available with additional probe modules.
  • Material Enclosures
  • ABS (display module) and metal (probe module) enclosure with corrosion resistant finish
  • Operating Temperature Range
  • -20 - 55 °C / 0 - 95% relative humidity, non-condensing
  • Relays
  • No Relay
  • Sensors
  • 6
  • Storage Conditions
  • -20 to 70 °C (-4 to 158 °F), 0 to 95% relative humidity, non-condensing
  • Warranty
  • 12 months
  • Weight
  • Approximately 6.5 kg (depending on configuration)
LXV400.99.5B532 SC1000 Probe Module, 6 Sensors, 4x 4-20mA Out, 4x 4-20mA In, Modbus RS485, 4x Relays, 110-240VAC, US Cord 2228 
Add to Cart
  • Alarm
  • Low alarm point, low alarm point deadband, high alarm point, high alarm point deadband, off delay, and on delay
  • Analog Output Functional Mode
  • PID, high/low phasing, setpoint, deadband, overfeed timer, off delay, on delay
  • Certifications
  • North American Certifications:cTUVus to UL 61010A-1 and CSA C22.2 No. 1010.1FCC ID QIPMC56 / IC ID 267W-MC56European Certifications:CE per 73/23/EEC and 89/336/EECTUV-GS to EN 61010-1EN 61326 Amd's 1 & 2
  • Communication Capabilities
  • Modbus 485
  • Display
  • 1/4 inch VGA graphical backlit TFT color Glas/Glas-Touch screen, high resistance, 320 x 240 pixels 320 x 240 pixels
  • Enclosure Rating
  • IP65
  • Inputs
  • Up to 12 analogue 0-20 mA, maximum impedance 500 Ohms per probe module. Additional inputs are available with additional probe modules.
  • Material Enclosures
  • ABS (display module) and metal (probe module) enclosure with corrosion resistant finish
  • Operating Temperature Range
  • -20 - 55 °C / 0 - 95% relative humidity, non-condensing
  • Relays
  • 4 Relays
  • Sensors
  • 6
  • Storage Conditions
  • -20 to 70 °C (-4 to 158 °F), 0 to 95% relative humidity, non-condensing
  • Warranty
  • 12 months
  • Weight
  • Approximately 6.5 kg (depending on configuration)
  • What's included?
  • SC1000 Probe Module with installed cards (as requested), Basic User Manual
HACH276M1210 Spare Calibration bags for 5500 - Series Clark DO 58 
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HACH08350=C=0005 8350 pH combination sensor, ¾ 523 
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  • Cable Length
  • 10 m
  • Length
  • 150 mm
  • Material
  • Sensor: Glass, CPVC,
  • Operating Temperature Range
  • 110 °C maximum
  • Pressure Range
  • 0 bar at 110 °C
  • Range
  • 0 - 12 pH
  • Special Notes
  • Liquid earth rod,domed glass withguard
  • Warranty
  • 6 months
LXZ449.99.00017 Cable guard, with chain, GS1440/GS2440EX 492 
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  • Length
  • 600 mm (2 ft)
  • Material
  • Stainless steel, mainly EN 1.4404 (316L)
  • Weight
  • 1.3 kg (2.9 lb)
  • What's included?
  • Cable guard, suspension chain, 2 carabiners/snap hooks
LXZ449.99.00008 Crossbeam clamps, GS1440/GS2440EX 138 
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  • What's included?
  • 2x clamps, 4x screws
HACH2A1014 Abrasive Cleaning Paper 24 
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HACH9073500 Abosorbent Wipe 3 
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F1A11A1T Tee-Mount Flow Sensor, Polypropylene Body 816 
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  • Body Material
  • Polypropylene
  • Cable Length
  • 20
  • Mounting
  • Tee mount
  • Pressure Range
  • In Cast Bronze Tee 400 psi at 176 °F (27.5 bar at 80 °C)
  • Repeatability
  • (in any tee) ± 0.5 % of full scale
  • Temperature
  • In Cast Bronze Tee 176 °F at 400 psi (80°C at 27.5 bar)
  • Warranty
  • 12 months
  • What's included?
  • Includes: sensor with 20 ft cable and manual

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