- 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：MFP-5 Series
Key Feature：Secure Threaded Temperature Sensing
MOQ(Standard)：500 pcs
MOQ(Customized)：TBD
Fucusens Solution
More Than an NTC Thermistor - A Ready-to-Install Threaded Temperature Sensor
A bare NTC thermistor still requires housing, insulation, cable connection, sealing and mechanical mounting. Focusens threaded sensor integrates these requirements into one complete assembly.
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 |
3 Common Mistakes When Selecting a Pipe-Mounted 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. |
More Than an NTC Thermistor - A Ready-to-Install Threaded Temperature Sensor
A bare NTC thermistor still requires housing, insulation, cable connection, sealing and mechanical mounting. Focusens threaded sensor integrates these requirements into one complete assembly.
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 |
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 threaded NTC temperature sensor?
An NTC temperature sensor integrated into a threaded housing for direct screw-in mounting and temperature measurement.
Q2: What is the temperature range?
According to the supplied specification: -30°C to +125°C. Final configuration should be confirmed according to the complete assembly and actual environment.
Q3: What applications is this sensor suitable for?
Water heaters, coffee machines, water boilers, solar thermal systems, hot water tanks and liquid heating equipment.
Q4: Can the thread size be customized?
Yes. Please provide the existing thread specification or equipment drawing.
Q5: What is the difference between front-end and end-thread structures?
The thread position depends on how the sensor mounts into the equipment. Different positions can be selected according to the existing mechanical design.
Q6: Can I choose different NTC resistance and B values?
Yes. Please provide R25 + B Value + Tolerance or send your existing sensor specification.
Q7: How fast does the sensor respond?
T0.63 ≤30 seconds in water at 0.4m/s under the specified test condition.
Q8: Is the sensor waterproof?
The supplied product information describes it as waterproof. Final waterproof requirements should be confirmed according to actual installation and exposure conditions.
Q9: Can the housing and wire dimensions be customized?
Yes. Different housing sizes, wire sizes and wire colors are available according to project requirements.
Q10: Can you provide different connectors?
Yes. Send the connector model, drawing, photo or mating connector information.
Q11: Can you replace my existing threaded sensor?
Yes. Send Drawing + Photos + NTC Specification + Thread Dimensions + Housing Dimensions + Cable + Connector.
Q12: What information do you need for a quotation?
Application + R25 + B Value + Temperature Range + Thread Specification + Housing Dimensions + Cable + Connector + Quantity.
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