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Part Numbers
T-DS-STS4103S-025
•T-DS-STS4104S-025
•T-DS-STS4105S-025
•T-DS-STS4503S-025
•T-DS-STS4504S-025
•T-DS-STS4103T-025
•T-DS-STS4104T-025
•T-DS-STS4105T-025
•T-DS-STS4503T-025
•T-DS-STS4504T-025
pHionics STs Series Conductivity & Temperature Sensor
3rd Party Sensor, HOBO RX Station-Compatible
From $1,150.00 USD
Durable water quality sensor that can be combined with HOBO RX systems to provide real-time conductivity and temperature data, and uses proprietary electrode technology to reduce how often recalibration is required.
Important Information
25-foot cable included. Manufactured and distributed by a third party, pHionics, this sensor can deliver real-time data to the LI-COR Cloud remote monitoring platform when connected to a cellular HOBO RX station via the Analog Module or the HOBOnet wireless sensor network's Analog Mote.
*For custom cable lengths, contact our sales team.
Overview
The pHionics STs Series™ Conductivity water quality sensor is compatible with HOBO RX stations to capture real-time conductivity and temperature data. These measurements are output via two 4-20mA signals that easily connect to HOBO stations and HOBOnet motes with analog inputs. A narrow diameter allows the STs Series to go places others can’t, while the chemical-resistant housing ensures the sensor endures for many years. Proprietary electrode technology provides stable measurements to reduce calibration frequency.
All parts, including the cable, are easily replaceable without tools In addition, isolation, differential amplification, and shielding ensureaccurate and low-noise measurements, all while remaining low-power.
These features make this conductivity sensor well-suited for applications such as groundwater monitoring, wastewater treatment, aquaculture, pollution monitoring, etc.
Noise Reduction Technology
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Features
- 4-cell electrode to measure conductivity (Specific Conductance), or TDS, depending on scaling
- Models available for 5 different conductivity ranges
- Secondary 0-50°C temperature sensor
- Chemical-resistant PVDF and 316 Stainless Steel housing (Titanium optional)
- Metal housing acts as the solution ground, removing background noise caused by stray electrical currents
- Narrow diameter (0.75 inches or 1.9 cm)
- Electrode guard to reduce debris or algae buildup and protect from damage
- Fully submersible up to 70 psi
- Shielded, Kevlar®-reinforced, water-blocked polyurethane cable
- 4-20 mA signal capable of transmission up to 3 miles (with proper wire gauge)
- Automatic Temperature Compensation (2% per degree Celsius)
- Reversed Input Protection and Operation
- Built-in electrical isolation to prevent ground loops
- Signal conditioning to remove background noise
Specifications
Conductivity Sensor
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4-20 mA
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Conductivity Range 0-1,000 µS/cm, 0-5,000 µS/cm, 0-10,000 µS/cm, 0-50,000 µS/cm, or 0-100,000 µS/cm
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4-cell
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2-wire
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2% per °C
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8-40 VDC
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95% < 5 seconds
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0-70 psi
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316 SS, Delrin®, Viton™, PVDF
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14.50 in (36.83 cm)
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0.75 in (1.90 cm) maximum
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0.50 lbs (0.227 kg)
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± 1% of full scale*
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± 1% of full scale*
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± 0.05% of full scale
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*After proper calibration
Output
Conductivity Range
Electrode Type
Transmitter Type
Automatic Temperature Compensation
Power Supply Voltage
Response Time
Pressure Range
Wetted Materials
Length
Width
Weight (No cable)
Linearity
Accuracy
Sensitivity
Temperature Sensor
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4-20 mA
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0-50°C
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+/- 1°C
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+/- 0.5°C
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7-40 VDC
Output
Temperature Range
Accuracy
Linearity
Power Supply Voltage
Cable
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Polyurethane
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4 conductor, Kevlar® reinforced, water blocked, shielded, twisted-pair wiring
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3 Miles
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26 Ohms
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Yes
Cable Material
Type
Maximum Distance
Resistance per 1000 ft. (304.8 m)
Replaceable?
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