-
Tel : +86-592-6382791
-
Email : sales@pidmaxwell.com
Tel : +86-592-6382791
Email : sales@pidmaxwell.com
The TC-K4/TC-J4 series is a high-performance, versatile probe-type thermocouple temperature sensor designed for a wide range of industrial, scientific, and process-control applications. The sensor consists of a stainless-steel protective sheath enclosing a precision thermocouple element, terminated with a braided-shield extension lead wire and fork-type (spade) terminal connectors. Four thermocouple calibration types — K, J, T, and E — are available to cover measurement ranges from cryogenic temperatures down to -200 °C up to +1260 °C, accommodating virtually every industrial temperature-measurement requirement.
The probe sheath is manufactured from 304 stainless steel, offering excellent corrosion resistance and mechanical durability. The extension lead wire is protected by a metallic braided shield (aluminium foil + tinned-copper braid) that effectively suppresses electromagnetic interference and ensures signal integrity over long cable runs. Both probe diameter and insertion length are fully customisable, and the lead wire length can be specified to any required dimension. An optional waterproof (IP67) sealed construction is available for use in wet or immersion environments. All products comply with IEC 60584 international standards.
Brand:
PIDMaxWellItem no.:
TC- K4/J4Payment:
T.T, Credit Card, Paypal etc, to be negotiateMarket price:
$15Price:
$10Product origin:
Made in ChinaColor:
Silver, whiteMin order:
10 PCSProduct weight:
0.05kgLead Time:
14 days after payment confirmedKey Features
|
Fully Customisable Dimensions |
Probe diameter (2–6 mm) and insertion length (50–500 mm+) are made to order, accommodating any installation bore or immersion depth. |
| Four Thermocouple Types | K, J, T, and E calibration types cover -200 °C to +1260 °C, providing the right sensor for every temperature range and atmosphere. |
| Braided-Shield Lead Wire | Metallic braided shielding (aluminium foil + tinned-copper braid) suppresses EMI; wire material options include stainless steel, silicone, fibreglass, and PTFE. |
| Optional Waterproof Design | IP67-rated sealed construction available for use in humid, wet, or liquid-immersion environments without additional protection. |
| Grounded or Ungrounded Junction | Grounded type (GD) offers faster thermal response; ungrounded/isolated type (UG) provides electrical isolation between the probe and measurement circuit. |
| IEC 60584 Compliant | Accuracy Class 1 or Class 2 available; colour-coded fork terminals (red/blue) for quick and error-free wiring. |
Specifications
General Specifications
| Product Series | TC-K4 / TC-J4 / TC-T4 / TC-E4 |
| Thermocouple Type | Type K, Type J, Type T, Type E (selectable) |
| Accuracy Class | Class 1 / Class 2 per IEC 60584 |
| Sheath Material | 304 Stainless Steel |
| Probe Diameter | 2 mm, 3 mm, 4 mm, 5 mm (other sizes customisable) |
| Probe Length | 50 mm, 100 mm, 150 mm, 200 mm (other lengths customisable) |
| Junction Type | Grounded (GD) / Ungrounded – Isolated (UG) |
| Lead Wire Material | Stainless Steel (SS) / Silicone (SILI) / Fibreglass (FG) / PTFE – Teflon (TF) |
| Lead Wire Length | 2000 mm, 3000 mm, 5000 mm (any length customisable) |
| Terminal End | Fork-type (spade) terminals, colour-coded red (+) / blue (−) |
| Waterproof Option | Standard (non-waterproof) / Waterproof IP67 (optional) |
| Ambient Temp. (Lead Wire) | -40 °C to +85 °C |
| Storage Temperature | -40 °C to +100 °C |
| Mounting | Direct insertion (threaded fittings, flanges available on request) |
| Compliance | IEC 60584-1 (thermocouple), IEC 60584-3 (extension wire) |
Thermocouple Type Comparison
| Type | Positive Wire | Negative Wire | Measurement Range | Class 2 Accuracy | Class 1 Accuracy | Recommended Atmosphere |
| K | NiCr (Chromel) | NiAl (Alumel) | -200 °C to +1260 °C | ±2.2 °C or ±0.75% | ±1.1 °C or ±0.4% | Oxidising or inert |
| J | Fe (Iron) | CuNi (Constantan) | 0 °C to +760 °C | ±2.2 °C or ±0.75% | ±1.1 °C or ±0.4% | Vacuum, reducing or oxidising (dry) |
| T | Cu (Copper) | CuNi (Constantan) | -200 °C to +350 °C | ±1.0 °C or ±0.75% | ±0.5 °C or ±0.4% | Moist / wet, low-temperature |
| E | NiCr (Chromel) | CuNi (Constantan) | -200 °C to +900 °C | ±1.7 °C or ±0.5% | ±1.0 °C or ±0.4% | Oxidising or inert, cryogenic |
Note: Measurement ranges above reflect the theoretical limits of the thermocouple wire. Actual operating range may be narrower depending on probe construction, installation method, and lead wire selection. Accuracy values apply whichever is greater.
Lead Wire Options
| Code | Material | Max. Continuous Temp. | Typical Application |
| SS | Stainless Steel Braided Wire | +300 °C | General industrial use, mechanical protection |
| SILI | Silicone Rubber Insulated Wire | +200 °C | Flexible routing, moderate-temperature environments |
| FG | Fibreglass Insulated Wire | +400 °C | High-temperature environments, furnace wiring |
| TF | PTFE (Teflon) Insulated Wire | +260 °C | Chemical resistance, food & pharmaceutical |
Why Choose Maxwell?
Maxwell Automation (Xiamen) Limited is a leading manufacturer and exporter of industrial automation and temperature measurement products, headquartered in Xiamen, Fujian Province, China. The NTC10K series is manufactured under strict quality control procedures, with 100% resistance testing at 25 °C and batch B-value verification to ensure consistent performance across production lots.
OEM/ODM Customisation: Custom probe dimensions, thread types, wire lengths, connector types, and private-label packaging are available for volume orders.
High-Volume Production Capacity: Monthly production capacity of over 100,000 units, with standard lead times of 10–15 working days for custom configurations.
100% Electrical Testing: Every sensor is tested for R25 resistance and continuity before shipment, with optional B-value verification available.
Competitive Factory Pricing: Direct factory pricing with no intermediary mark-up. Volume discounts available for orders above 1,000 units.
Global Logistics Support: Worldwide shipping via DHL, FedEx, UPS, and ocean freight. Samples available for evaluation before bulk order placement.
Contact Information
| Channel | Details |
| sales@pidmaxwell.com | |
| Tel / WhatsApp | +86 13779929138 |
| Phone (Office) | +86-592-6382791 |
| Website | www.maxwell-fa.com |
Code Structure
TC-K4 (or TC-J4) — ① — ② — ③ — ④ — ⑤ — ⑥
Code Field Definitions
| Field | Description | Code | Meaning |
| TC-K4 or TC-J4 | Product prefix (Quick order code) | TC-K4 TC-J4 | Thermocouple Type K Thermocouple Type J |
| ① Probe Diameter | Probe outer diameter (mm) Customisable — other sizes available | 2 ,3 ,4 ,5 | Ø 2 mm , Ø 3 mm , Ø 4 mm , Ø 5 mm |
| ② Probe Length | Probe insertion length (mm) Customisable — other lengths available | 50 ,100 ,150 ,200 | 50 mm , 100 mm , 150 mm , 200 mm |
| ③ Process Fittings | Screw / process fittings | N | No screw fittings (this model) |
| ④ Lead Wire Length | Lead wire length (mm) Any length can be specified | 2000 ,3000 ,5000 | 2000 mm (2 m) , 3000 mm (3 m) , 5000 mm (5 m) |
| ⑤ Lead Wire Material | Insulation / jacket material | SS ,SILI ,FG ,TF | Stainless steel wire Silicone wire Fibreglass insulation wire Teflon (PTFE) wire |
| ⑥ Junction Type | Thermocouple hot-junction grounding | GD ,UG | Grounded (non-isolation type, standard) Ungrounded (isolation type) |
Ordering Examples
| Order Code | Description |
| TC-K4-5-100-N-2000-SS-GD | Type K thermocouple, Ø5 mm probe, 100 mm insertion length, no fittings, 2 000 mm stainless-steel lead wire, grounded junction |
| TC-J4-3-100-N-2000-SS-GD | Type J thermocouple, Ø3 mm probe, 100 mm insertion length, no fittings, 2 000 mm stainless-steel lead wire, grounded junction |
| TC-K4-4-150-N-3000-SILI-UG | Type K thermocouple, Ø4 mm probe, 150 mm insertion length, no fittings, 3 000 mm silicone lead wire, ungrounded (isolated) junction |
| TC-J4-5-200-N-5000-FG-GD | Type J thermocouple, Ø5 mm probe, 200 mm insertion length, no fittings, 5 000 mm fibreglass lead wire, grounded junction |
| TC-T4-3-50-N-2000-SS-GD | Type T thermocouple, Ø3 mm probe, 50 mm insertion length, no fittings, 2 000 mm stainless-steel lead wire, grounded junction |
| TC-E4-4-100-N-3000-TF-UG | Type E thermocouple, Ø4 mm probe, 100 mm insertion length, no fittings, 3 000 mm PTFE lead wire, ungrounded (isolated) junction |
Note: For non-standard probe diameters, insertion lengths, lead wire lengths, or special mounting hardware (threaded fittings, flanges, etc.), please state your requirements when ordering. A waterproof (IP67) version is also available — add "-WP" suffix or contact our sales team. Visit www.maxwell-fa.com for a quotation.
Selection Guide
| Type | Recommended Range | Best For | Avoid |
| K | -200 °C to +1260 °C | Most industrial applications; high-temperature furnaces; automotive exhaust; injection moulding; general-purpose use | Sulphurous atmospheres; partially oxidising environments; vacuum (long-term) |
| J | 0 °C to +760 °C | Dry industrial environments; vacuum furnaces; reducing atmospheres; plastics processing | Moist/wet conditions; temperatures above 540 °C with fine-gauge wire |
| T | -200 °C to +350 °C | Refrigeration; cold-chain monitoring; food processing; wet/humid environments; cryogenic research | Temperatures above 370 °C in air (oxidation of copper wire) |
| E | -200 °C to +900 °C | High-sensitivity scientific measurements; cryogenic applications; laboratory instruments | Partially oxidising atmospheres; alternating oxidising/reducing cycles (long-term) |
Ordering Information Reference
Potential Applications
Industrial Automation & Process Control
The TC-K4/TC-J4 series is ideally suited for temperature monitoring in plastic injection moulding machines, extruders, and hot-runner systems, where K- or J-type sensors provide accurate barrel, mould, and nozzle temperature feedback to ensure consistent product quality. In metal heat-treatment furnaces, annealing ovens, and quench systems, the wide measurement range of the K-type sensor (up to 1260 °C) satisfies the most demanding high-temperature process requirements. T-type sensors are widely used in food-processing ovens and steam generators, where mid-range accuracy is critical.
HVAC & Refrigeration Systems
In heating, ventilation, and air-conditioning (HVAC) systems, the probe sensor monitors duct temperatures, coil temperatures, and chilled/hot-water pipe temperatures. The T-type thermocouple is particularly well suited for refrigeration applications, providing stable and accurate readings from -200 °C to +350 °C — covering cold-storage warehouses, refrigerated transport, and commercial refrigeration equipment. The optional IP67 waterproof version can be installed directly in pipework or liquid vessels without additional sealing.
Laboratory & Research Equipment
In laboratory environments, the sensor is used in environmental chambers, drying ovens, high-/low-temperature test chambers, and experimental furnaces. The E-type thermocouple, which produces the highest electromotive force (EMF) output of all standard thermocouple types, is especially advantageous in precision scientific measurements requiring maximum sensitivity.
New Energy & Power Equipment
In the new-energy sector, the sensor monitors battery-pack temperatures in lithium-ion battery systems, thermal management in EV charging stations, and heat dissipation in photovoltaic inverters. In power infrastructure — transformers, switchgear, and distribution panels — the sensor provides real-time temperature data to protection and alarm systems, preventing thermal runaway and equipment failure.
Medical & Pharmaceutical Equipment
The series is used in sterilisation autoclaves, freeze-dryers (lyophilisers), incubators, and pharmaceutical production lines. The T-type thermocouple's high accuracy at low temperatures makes it the preferred choice for cold-chain drug storage, blood-bank refrigerators, and biological sample preservation systems.
Automotive & Transportation
Applications include engine test-bench instrumentation, exhaust-gas temperature measurement, EV battery thermal management, and environmental testing of automotive components. The K-type thermocouple is particularly suited to exhaust-temperature monitoring, where temperatures can exceed 800 °C.
Food & Beverage Processing
The sensor is used in baking ovens, pasteurisation equipment, liquid-food heating systems, and cold-storage facilities. The IP67 waterproof version can be submerged directly in liquids, meeting the hygiene and ingress-protection requirements of the food industry.
Plastics & Rubber Processing
Precise temperature control is critical in extrusion, blow moulding, and vulcanisation processes. The customisable probe dimensions allow the sensor to be fitted to any barrel, die, or mould geometry, while the choice of lead-wire insulation material (PTFE, fibreglass) ensures compatibility with high-temperature and chemically aggressive processing environments.
TC-K1/J1/T1
Screw-in type thermocouple K,J,T,E
TT-501
Field mount temperature transmitter with local display
TC-K2,J2,T2,E2
Probe type thermocouple K,J,T,E with process fittings
TC-K6/J6
Spring loaded adjustable thermocouple type K/J
TC-K7/J7
Spring loaded non-adjustable bayonet sensor type K/J
TC-K8/J8
Ceramic sheath thermocouple with connection box
TC-K14/J14
Bare tip temperature sensor type K/J
NTC 10K
NTC 10K M8 Screw-Type Temperature Sensor
Address : NO.201 Binhuyili, HaiCang district, XiaMen,FuJian, China 361026
Max liao: +86 13779929138(whatsapp)
Email : sales@pidmaxwell.com
Scan via wechat
