- Product information
- Focusens Solution
- Typical Application
- Technical Specifications & Selection Guide
- How Do We Control Quality?
- Are You Facing Any of These Temperature Sensor Problems?
- Why Choose Focusens Threaded NTC Temperature Sensor?
- Frequently Asked Questions
- Purchase history
- Customer Reviews
- Buyers Q & A
Model：Rtd Series
Key Feature：Secure Threaded Temperature Sensing
MOQ(Standard)：500 pcs
MOQ(Customized)：TBD
Fucusens Solution
The straight KTY temperature sensor is designed for accurate and reliable temperature measurement in liquid and industrial applications. It features a durable stainless steel probe housing that provides good mechanical protection and supports stable temperature sensing in demanding operating environments.
Equipped with a flexible silicone cable, this sensor offers convenient installation and reliable electrical connection. The compact straight probe design makes it suitable for immersion temperature measurement in water systems, heating equipment, HVAC systems, and industrial temperature monitoring applications.
The KTY sensing element provides a temperature-dependent resistance output, making it suitable for electronic temperature monitoring and control systems.
Our Capability | What It Solves | Value to Your Business |
Threaded mounting structure | Sensor is difficult to fix securely | Direct screw-in installation |
Screw and nut mounting options | Different mounting structures | Greater installation flexibility |
Solid housing structure | Weak or unstable mounting | Improved mechanical reliability |
Waterproof construction | Moisture affects sensor performance | Better suitability for water-related equipment |
Fast response | Slow temperature feedback | Faster monitoring and control |
Various NTC R & B values | Sensor does not match controller | Easier electrical compatibility |
Custom SUS housing | Standard housing does not fit equipment | Better mechanical integration |
Custom cable | Standard cable does not match temperature or routing | Better installation compatibility |
Connector options | Extra wiring work is required | Easier direct connection |
Finished assembly | Customer needs secondary fabrication | Ready for installation |
Typical Applications
Application | Typical Customer | Recommended Solution | Why This Configuration |
Water Heater Temperature Monitoring | Residential and commercial water heater manufacturers | Waterproof threaded NTC sensor with SUS housing | Screw-in installation provides secure mounting and direct water temperature monitoring |
Coffee Machine Water Temperature Control | Coffee machine manufacturers | Compact threaded NTC probe with customized thread | Secure installation in boilers or heating assemblies with controller-matched NTC parameters |
Water Boiler Temperature Monitoring | Water boiler and beverage equipment manufacturers | End-thread or front-thread waterproof NTC sensor | Solid threaded structure supports direct installation and reliable feedback |
Solar Thermal / Hot Water Systems | Solar water heater and thermal system manufacturers | Threaded SUS NTC temperature sensor | Suitable for hot-water circulation and storage systems |
Hot Water Tank Temperature Monitoring | Tank and water heating equipment manufacturers | Custom screw-in NTC temperature probe | Thread, housing length and cable can be matched to tank installation |
Custom Liquid Heating Equipment | OEM thermal equipment manufacturers | Customized threaded NTC sensor | NTC, thread, housing, cable and connector can match existing equipment |
Technical Specifications & Selection Guide
Parameter | Specification | Selection Notes |
Product Type | Threaded NTC Temperature Sensor | Screw-in equipment mounting |
Sensing Element | NTC Thermistor | Various R and B values available on request |
Temperature Range | -30°C to +125°C | According to supplied technical data |
Mounting Type | Threaded / Screw & Nut Mounting | According to equipment structure |
Housing Structure | Solid metal housing | Mechanical protection and mounting |
Response Time | T0.63 ≤30s in water at 0.4m/s | Under specified test conditions |
Dissipation Factor | ≥2.5mW/°C | According to technical data |
Long-Term Stability | Drift ≤3% after 1,000h heat or cold storage at 80°C / -30°C | Specified storage condition |
Dielectric Strength | 1500VAC | Electrical insulation |
Insulation Resistance | ≥100MΩ @ 500VDC | Electrical insulation |
Housing Material | SUS housing options available | According to structure and application |
Thread Position | Front-End / End-Thread Options | According to mounting requirement |
Housing Size | Different sizes available | Customizable |
Probe / Wire Size | Customizable | According to equipment design |
Wire Color | Customizable | According to customer requirements |
Connector | Various options available | According to equipment interface |
Product Structure & Selection Guide
Selection Item | What to Confirm | Why It Matters |
NTC Resistance (R25) | Required resistance at 25°C | Must match the controller |
B Value | Required NTC B value | Determines resistance-temperature curve |
Temperature Range | Normal and maximum operating temperature | Determines complete sensor configuration |
Thread Type | Required mounting structure | Must match equipment |
Thread Size | Required thread specification | Determines mechanical compatibility |
Thread Position | Front-end / end-thread | Must match installation structure |
Housing Material | SUS / required material | Match operating environment |
Housing Length | Required insertion or mounting depth | Ensures correct sensing position |
Cable Material | According to temperature | Ensures cable reliability |
Cable Length | Required lead length | Matches equipment wiring |
Connector | Existing equipment interface | Allows direct installation |
This straight stem RTD PT100 temperature sensor is designed for accurate and stable temperature measurement in industrial process monitoring and equipment control. Featuring a robust probe structure, it supports integration into industrial machinery, fluid temperature measurement systems, HVAC equipment, and automation applications. Focus Sensing provides customized RTD sensor solutions with flexible probe dimensions, connection options, cable configurations, and OEM/ODM support to meet different project requirements.
Our Capability | What It Solves | Value to Your Business |
Threaded mounting structure | Sensor is difficult to fix securely | Direct screw-in installation |
Screw and nut mounting options | Different mounting structures | Greater installation flexibility |
Solid housing structure | Weak or unstable mounting | Improved mechanical reliability |
Waterproof construction | Moisture affects sensor performance | Better suitability for water-related equipment |
Fast response | Slow temperature feedback | Faster monitoring and control |
Various NTC R & B values | Sensor does not match controller | Easier electrical compatibility |
Custom SUS housing | Standard housing does not fit equipment | Better mechanical integration |
Custom cable | Standard cable does not match temperature or routing | Better installation compatibility |
Connector options | Extra wiring work is required | Easier direct connection |
Finished assembly | Customer needs secondary fabrication | Ready for installation |
Application | Typical Customer | Recommended Solution | Why This Configuration |
Water Heater Temperature Monitoring | Residential and commercial water heater manufacturers | Waterproof threaded NTC sensor with SUS housing | Screw-in installation provides secure mounting and direct water temperature monitoring |
Coffee Machine Water Temperature Control | Coffee machine manufacturers | Compact threaded NTC probe with customized thread | Secure installation in boilers or heating assemblies with controller-matched NTC parameters |
Water Boiler Temperature Monitoring | Water boiler and beverage equipment manufacturers | End-thread or front-thread waterproof NTC sensor | Solid threaded structure supports direct installation and reliable feedback |
Solar Thermal / Hot Water Systems | Solar water heater and thermal system manufacturers | Threaded SUS NTC temperature sensor | Suitable for hot-water circulation and storage systems |
Hot Water Tank Temperature Monitoring | Tank and water heating equipment manufacturers | Custom screw-in NTC temperature probe | Thread, housing length and cable can be matched to tank installation |
Custom Liquid Heating Equipment | OEM thermal equipment manufacturers | Customized threaded NTC sensor | NTC, thread, housing, cable and connector can match existing equipment |
This threaded RTD temperature sensor is suitable for temperature measurement of liquid and gas in industrial pipelines, vessels and mechanical equipment. Widely applied in HVAC, food machinery, chemical, water treatment and automation systems. Thread connection enables quick installation and convenient maintenance compared with flange type sensors.
Technical Data
Parameter | Specification | Selection Notes |
Product Type | Threaded NTC Temperature Sensor | Screw-in equipment mounting |
Sensing Element | NTC Thermistor | Various R and B values available on request |
Temperatre Range | -30°C to +125°C | According to supplied technical data |
Mounting Type | Threaded / Screw & Nut Mounting | According to equipment structure |
Housing Structure | Solid metal housing | Mechanical protection and mounting |
Response Time | T0.63 ≤30s in water at 0.4m/s | Under specified test conditions |
Dissipation Factor | ≥2.5mW/°C | According to technical data |
Long-Term Stability | Drift ≤3% after 1,000h heat or cold storage at 80°C / -30°C | Specified storage condition |
Dielectric Strength | 1500VAC | Electrical insulation |
Insulation Resistance | ≥100MΩ @ 500VDC | Electrical insulation |
Housing Material | SUS housing options available | According to structure and application |
Thread Position | Front-End / End-Thread Options | According to mounting requirement |
Housing Size | Different sizes available | Customizable |
Probe / Wire Size | Customizable | According to equipment design |
Wire Color | Customizable | According to customer requirements |
Connector | Various options available | According to equipment interface |
Sensor Construction & Selection Guide
Selection Item | What to Confirm | Why It Matters |
NTC Resistance (R25) | Required resistance at 25°C | Must match the controller |
B Value | Required NTC B value | Determines resistance-temperature curve |
Temperature Range | Normal and maximum operating temperature | Determines complete sensor configuration |
Thread Type | Required mounting structure | Must match equipment |
Thread Size | Required thread specification | Determines mechanical compatibility |
Thread Position | Front-end / end-thread | Must match installation structure |
Housing Material | SUS / required material | Match operating environment |
Housing Length | Required insertion or mounting depth | Ensures correct sensing position |
Cable Material | According to temperature | Ensures cable reliability |
Cable Length | Required lead length | Matches equipment wiring |
Connector | Existing equipment interface | Allows direct installation |
3 Common Mistakes When Selecting a Clamp-Mount NTC Sensor
Common Mistake | Why It Causes Problems | Better Approach |
Any 10K NTC will work. | Two 10K thermistors may use different B values and therefore different R-T curves. | Confirm R25 + B Value + Tolerance. |
If the thread fits, the sensor is compatible. | Mechanical compatibility does not guarantee electrical compatibility. | Confirm both thread dimensions and NTC parameters. |
The housing temperature rating is enough. | Cable, connector, insulation and sealing may have different temperature limits. | Evaluate the complete sensor assembly. |
A Threaded Sensor Must Be Electrically Stable, Waterproof and Mechanically Reliable
Reliable performance depends on the complete assembly: NTC Stability + Housing Strength + Thread Dimensions + Sealing + Electrical Insulation + Cable Connection.
Incoming Material Inspection
· Stainless steel housing materials checked according to specification
· Cable materials confirmed according to application temperature
· Sealing and insulation materials inspected before production
· Connectors and terminals verified according to customer requirements
Process Control
· NTC-to-wire connections controlled for electrical reliability
· Sensing element positioned according to sensor structure
· Insulation and sealing controlled during assembly
· Thread and housing dimensions checked against approved drawings
· Cable and connector configuration checked before final assembly
Finished Product Inspection
Test Item | Specification | Purpose |
NTC Resistance | According to confirmed specification | Verify electrical characteristics |
B Value / R-T Characteristics | According to selected NTC | Ensure controller compatibility |
Temperature Range | -30°C to +125°C | Verify application suitability |
Response Time | T0.63 ≤30s in water at 0.4m/s | Verify thermal response |
Dissipation Factor | ≥2.5mW/°C | Verify thermal characteristics |
Long-Term Stability | Drift ≤3% after 1,000h heat or cold storage at 80°C / -30°C | Verify long-term stability |
Dielectric Strength | 1500VAC | Verify electrical insulation |
Insulation Resistance | ≥100MΩ @ 500VDC | Ensure insulation reliability |
Thread / Housing Dimensions | According to approved drawing | Ensure installation compatibility |
If You Are an Equipment Manufacturer / OEM
Common Problem | What It Means for Your Business |
The sensor cannot be mounted securely | A sensor without the correct threaded structure may require extra brackets or modifications. |
The thread does not match your equipment | Different equipment uses different thread sizes, pitches and mounting depths. |
Water or moisture causes sensor failures | Water heaters, boilers and thermal systems require reliable sealing and insulation. |
Temperature feedback is too slow | Slow response can affect heating control and over-temperature protection. |
The NTC curve does not match your controller | Incorrect R25 or B value can result in inaccurate temperature readings. |
Standard housing dimensions do not fit | Different equipment uses different installation structures. |
Cable or connector requires modification | Secondary wiring increases assembly time and production work. |
The sensor requires additional fabrication before use | Extra machining or assembly reduces production efficiency. |
If You Are a Distributor / Importer
Common Problem | What It Means for Your Business |
One threaded sensor cannot cover different customers | Customers require different thread sizes, housings, NTC parameters and cables. |
Customers require different NTC specifications | Different controllers use different R25 and B values. |
Your supplier only provides fixed housing sizes | OEM projects are difficult to support when customers provide custom drawings. |
Water-related applications generate quality complaints | Poor sealing can create failures in heaters and boilers. |
Products require secondary fabrication | Customers prefer a finished sensor they can install directly. |
Technical matching takes too long | Thread, NTC, housing and cable must all be confirmed before the project can move forward. |
Sample Support
Item | Support |
Standard Sample | According to available specifications and stock |
Customized Sample | Available after specification confirmation |
NTC Selection | Support for R25 and B-value matching |
Thread Selection | Support for thread size and mounting structure |
Housing Selection | According to installation and environment |
Cable Selection | According to operating temperature |
Connector Matching | Different connector options available |
Sample Validation Before Mass Production
Check: NTC Parameters → Temperature Response → Thread Size → Thread Position → Housing Length → Sealing → Cable Routing → Connector
Quality Assurance
Item | Our Approach |
NTC Parameters | According to confirmed R25, B value and tolerance |
Thread Dimensions | According to approved drawing |
Housing Structure | According to application requirements |
Cable | According to required temperature and environment |
Connector | According to equipment interface |
Customized Product | Specifications confirmed before mass production |
Quality Issues | Technical analysis and corrective solution |
MOQ & Lead Time
Item | Details |
Standard Product MOQ | Contact us for current MOQ |
Customized Product MOQ | Depends on customization requirements |
Standard Lead Time | Contact us for current production schedule |
Customized Lead Time | Depends on NTC, thread, housing, cable and connector requirements |
Sample Lead Time | Confirmed after specification review |
About Us
Capability | Details |
Main Products | NTC Temperature Sensors, RTD Sensors, Threaded Temperature Probes, Immersion Probes, Surface Sensors and Custom Sensor Assemblies |
Sensor Elements | NTC thermistors and other temperature sensing solutions |
Electrical Customization | R25 resistance, B value and tolerance |
Mechanical Customization | Thread, housing, probe length and mounting structure |
Cable Customization | Cable material, length, size and color |
Connection | Different connector options available |
Housing Options | Different SUS housing sizes available |
OEM / ODM | Custom development based on drawings, samples and applications |
Q1: What is a KTY temperature sensor?
A KTY temperature sensor is a silicon-based resistive temperature sensor whose resistance changes with temperature. It is commonly used in electronic temperature monitoring and control systems.
Q2: What are the advantages of the straight KTY temperature sensor?
Its straight probe design allows convenient installation and immersion temperature measurement. The stainless steel housing provides mechanical protection, while the silicone cable offers flexibility.
Q3: Can this KTY sensor be used for liquid temperature measurement?
Yes. It can be used for water temperature monitoring and other liquid temperature measurement applications, subject to the probe's sealing and operating specifications.
Q4: Can the probe length and cable length be customized?
Yes. We support OEM and ODM customization, including probe dimensions, cable length, connector type, and electrical specifications.
Q5: What applications are suitable for this KTY temperature sensor?
It is suitable for HVAC systems, water heaters, household appliances, industrial temperature monitoring, and thermal management equipment.
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