Products

Suppliers
Filter Gallery
3,345

Constantan Thermocouple

Products
Electric Thermocouple Thermocouple Wire Resistance Wire Constantan Copper Thermocouple Bare Wire Alloy Thermocouple Bare Wire

Sorry! No matches were found.

Manufacturer Price Type E Thermocouple (Nickel-Chromium/Constantan) Stronger Signal & Higher Accuracy Than The Type K

Manufacturer Price Type E Thermocouple (Nickel-Chromium/Constantan) Stronger Signal & Higher Accuracy Than The Type K

US $ 1.5-500 / Piece FOB
1 Piece (MOQ)
More
Main Products: Nickel Strip, Nichrome Wire, Nickel Wire, Resistance Wire, Nickel Welding Wire, Inconel, Incoloy, Heating Wire, Thermocouple Wire, Nickel Alloy
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Changzhou Dlx Alloy Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2022
Chat Now Send Inquiry
Top Quality Type E Thermocouple (Nickel-Chromium/Constantan) Stronger Signal & Higher Accuracy Than The Type K

Top Quality Type E Thermocouple (Nickel-Chromium/Constantan) Stronger Signal & Higher Accuracy Than The Type K

US $ 1.5-500 / Piece FOB
1 Piece (MOQ)
More
Certification : ISO
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Changzhou Dlx Alloy Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2022
Chat Now Send Inquiry
Type E Thermocouple (Nickel-Chromium/Constantan) Stronger Signal & Higher Accuracy Than The Type K

Type E Thermocouple (Nickel-Chromium/Constantan) Stronger Signal & Higher Accuracy Than The Type K

US $ 1.5-500 / Piece FOB
1 Piece (MOQ)
More
Main Products: Nickel Strip, Nichrome Wire, Nickel Wire, Resistance Wire, Nickel Welding Wire, Inconel, Incoloy, Heating Wire, Thermocouple Wire, Nickel Alloy
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Changzhou Dlx Alloy Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2022
Chat Now Send Inquiry
Top Quality Type E Thermocouple Nickel Chromium Constantan Signal & Higher Accuracy

Top Quality Type E Thermocouple Nickel Chromium Constantan Signal & Higher Accuracy

US $ 1.5-500 / Piece FOB
1 Piece (MOQ)
More
Certification : ISO
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Changzhou Dlx Alloy Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2022
Chat Now Send Inquiry
Type E Thermocouple Wire (Nickel-Chromium/Constantan) Material Used in Oxiding or Inert Atmospheres

Type E Thermocouple Wire (Nickel-Chromium/Constantan) Material Used in Oxiding or Inert Atmospheres

US $ 1.5-500 / Piece FOB
1 Piece (MOQ)
More
Main Products: Nickel Strip, Nichrome Wire, Nickel Wire, Resistance Wire, Nickel Welding Wire, Inconel, Incoloy, Heating Wire, Thermocouple Wire, Nickel Alloy
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Changzhou Dlx Alloy Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2022
Chat Now Send Inquiry
Type J Iron (JP) & Constantan (JN) Thermocouple Outer Sheath Material 1.4571 Temperature Range 1200 Celsius Thermocouple

Type J Iron (JP) & Constantan (JN) Thermocouple Outer Sheath Material 1.4571 Temperature Range 1200 Celsius Thermocouple

US $ 0.5-1.5 / Meter FOB
100 Meters (MOQ)
More
Conductor Type : Solid
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Changzhou Dlx Alloy Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2022
Chat Now Send Inquiry
Hot Sale High Temperature J\K\E Assembly Thermocouple with Temperature Transmitter

Hot Sale High Temperature J\K\E Assembly Thermocouple with Temperature Transmitter

US $ 19-28 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Cartridge Heaters, Hot Runner Heater, Tubular Heaters, Band Heaters, Silicone Rubber Heaters, Cast-in Heaters, Infrared Ceramic Heater, Thermocouples, PT100 Sensors, Polyimide Heater
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
PT-100 Thermocouple Temperature Probe

PT-100 Thermocouple Temperature Probe

US $ 1-12 / Piece FOB
10 Pieces (MOQ)
More
Certification : RoHS, CE
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Shenzhen Superb Heater Technology Co., Limited

Manufacturer/Factory

Guangdong, China Since 2017
Chat Now Send Inquiry
Meat Thermometer Food Temperature Measuring K Type Thermocouple Probe Sensor

Meat Thermometer Food Temperature Measuring K Type Thermocouple Probe Sensor

US $ 15-18 / Piece FOB
5 Pieces (MOQ)
More
Main Products: Cartridge Heaters, Hot Runner Heater, Tubular Heaters, Band Heaters, Silicone Rubber Heaters, Cast-in Heaters, Infrared Ceramic Heater, Thermocouples, PT100 Sensors, Polyimide Heater
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
0-1600c 16mm Diameter Thermocouple Type S/R/B

0-1600c 16mm Diameter Thermocouple Type S/R/B

US $ 1-12 / Piece FOB
10 Pieces (MOQ)
More
Certification : RoHS, CE
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Shenzhen Superb Heater Technology Co., Limited

Manufacturer/Factory

Guangdong, China Since 2017
Chat Now Send Inquiry
M6 Brass Bolt K Type Thermocouple

M6 Brass Bolt K Type Thermocouple

US $ 4-6 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Cartridge Heaters, Hot Runner Heater, Tubular Heaters, Band Heaters, Silicone Rubber Heaters, Cast-in Heaters, Infrared Ceramic Heater, Thermocouples, PT100 Sensors, Polyimide Heater
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
High Temperature Sensor Furnace Platinum-Rhodium Thermocoupletype: K Type Thermocouple

High Temperature Sensor Furnace Platinum-Rhodium Thermocoupletype: K Type Thermocouple

US $ 3-6 / Piece FOB
5 Pieces (MOQ)
More
Shape : Tubular
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Shenzhen Superb Heater Technology Co., Limited

Manufacturer/Factory

Guangdong, China Since 2017
Chat Now Send Inquiry
Electric Wire & Cable Temperature & Humidity Sensor Nickel Alloy Heating Element Alloy Steel
K Type Thermocouple of 1.0mm Wire Armored for 1200c

K Type Thermocouple of 1.0mm Wire Armored for 1200c

US $ 4.5-7 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Cartridge Heaters, Hot Runner Heater, Tubular Heaters, Band Heaters, Silicone Rubber Heaters, Cast-in Heaters, Infrared Ceramic Heater, Thermocouples, PT100 Sensors, Polyimide Heater
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
High Quality PT100 Temperature Sensor Thermocouple

High Quality PT100 Temperature Sensor Thermocouple

US $ 3-6 / Piece FOB
5 Pieces (MOQ)
More
Certification : RoHS, CE
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Shenzhen Superb Heater Technology Co., Limited

Manufacturer/Factory

Guangdong, China Since 2017
Chat Now Send Inquiry
J Type High Temperature Compression Thermocouple Temperature Sensor for Injection Molding Machine

J Type High Temperature Compression Thermocouple Temperature Sensor for Injection Molding Machine

US $ 5-7 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Cartridge Heaters, Hot Runner Heater, Tubular Heaters, Band Heaters, Silicone Rubber Heaters, Cast-in Heaters, Infrared Ceramic Heater, Thermocouples, PT100 Sensors, Polyimide Heater
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
Flexible Type-K Thermocouple for Temperature Sensor

Flexible Type-K Thermocouple for Temperature Sensor

US $ 30-35 / Piece FOB
5 Pieces (MOQ)
More
Standard : Celsius/Fahrenheit, Celsius
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Shenzhen Superb Heater Technology Co., Limited

Manufacturer/Factory

Guangdong, China Since 2017
Chat Now Send Inquiry
M6 Screw Probe K Type Thermocouple Temperature Sensor with 1m 2m 3m 4m 5m Wire Cable for Industrial Temperature Controller

M6 Screw Probe K Type Thermocouple Temperature Sensor with 1m 2m 3m 4m 5m Wire Cable for Industrial Temperature Controller

US $ 4-5 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Cartridge Heaters, Hot Runner Heater, Tubular Heaters, Band Heaters, Silicone Rubber Heaters, Cast-in Heaters, Infrared Ceramic Heater, Thermocouples, PT100 Sensors, Polyimide Heater
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
Temperature Sensor K Type Thermocouple with Thread

Temperature Sensor K Type Thermocouple with Thread

US $ 5-7.5 / Piece FOB
10 Pieces (MOQ)
More
Sensing Type : Thermocouple
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
4.5X50mm K Type Thermocouple

4.5X50mm K Type Thermocouple

US $ 3-4 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Cartridge Heaters, Hot Runner Heater, Tubular Heaters, Band Heaters, Silicone Rubber Heaters, Cast-in Heaters, Infrared Ceramic Heater, Thermocouples, PT100 Sensors, Polyimide Heater
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
Type K Gas Thermocouple Type K Thermocouple 1200c K Type Thermocouple

Type K Gas Thermocouple Type K Thermocouple 1200c K Type Thermocouple

US $ 4.5-8 / Piece FOB
10 Pieces (MOQ)
More
Contact : Contactless
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
Related Videos
  • What is Manufacturer Price Type E Thermocouple (Nickel-Chromium/Constantan) Stronger Signal & Higher Accuracy Than The Type K
    What is Manufacturer Price Type E Thermocouple (Nickel-Chromium/Constantan) Stronger Signal & Higher Accuracy Than The Type K
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
  • What is Type J Iron (JP) & Constantan (JN) Thermocouple Outer Sheath Material 1.4571 Temperature Range 1200 Celsius Thermocouple
    What is Type J Iron (JP) & Constantan (JN) Thermocouple Outer Sheath Material 1.4571 Temperature Range 1200 Celsius Thermocouple
    Negotiable
    100 Meters (MOQ)
    Contact Supplier
  • What is Hot Sale High Temperature J\K\E Assembly Thermocouple with Temperature Transmitter
    What is Hot Sale High Temperature J\K\E Assembly Thermocouple with Temperature Transmitter
    Negotiable
    10 Pieces (MOQ)
    Contact Supplier
  • What is PT-100 Thermocouple Temperature Probe
    What is PT-100 Thermocouple Temperature Probe
    Negotiable
    10 Pieces (MOQ)
    Contact Supplier
Hot Runner Heater Thermocouple of J K E Type

Hot Runner Heater Thermocouple of J K E Type

US $ 4-6 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Cartridge Heaters, Hot Runner Heater, Tubular Heaters, Band Heaters, Silicone Rubber Heaters, Cast-in Heaters, Infrared Ceramic Heater, Thermocouples, PT100 Sensors, Polyimide Heater
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
Explosion Proof PT100 Rtd Temperature Sensor, K/T/N/E/R/S/B Industrial Assembled Thermocouple Waterproof Temperature Sensor

Explosion Proof PT100 Rtd Temperature Sensor, K/T/N/E/R/S/B Industrial Assembled Thermocouple Waterproof Temperature Sensor

US $ 30-39 / Piece FOB
5 Pieces (MOQ)
More
Measuring Medium : Temperature
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
8X20mm J Type Thermocouple

8X20mm J Type Thermocouple

US $ 3-4 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Cartridge Heaters, Hot Runner Heater, Tubular Heaters, Band Heaters, Silicone Rubber Heaters, Cast-in Heaters, Infrared Ceramic Heater, Thermocouples, PT100 Sensors, Polyimide Heater
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
K Type Magnetic Thermocouple Probe

K Type Magnetic Thermocouple Probe

US $ 4-6 / Piece FOB
10 Pieces (MOQ)
More
Measuring Medium : Temperature
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry

Not exactly what you want?

Post Sourcing Request

J Type 1X170mm Probe High Temperature Surface Thermocouple

J Type 1X170mm Probe High Temperature Surface Thermocouple

US $ 3-4 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Cartridge Heaters, Hot Runner Heater, Tubular Heaters, Band Heaters, Silicone Rubber Heaters, Cast-in Heaters, Infrared Ceramic Heater, Thermocouples, PT100 Sensors, Polyimide Heater
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
Temperature Sensor Tc Thermocouple Type K J Thermocouple

Temperature Sensor Tc Thermocouple Type K J Thermocouple

US $ 4.5-6 / Piece FOB
10 Pieces (MOQ)
More
Sensing Type : Thermocouple
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
Thermocouple Thread M6 Screw Type K 1/2/3/4/5m Probe Sensor Temperature Sensor Temperature

Thermocouple Thread M6 Screw Type K 1/2/3/4/5m Probe Sensor Temperature Sensor Temperature

US $ 4-6.5 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Cartridge Heaters, Hot Runner Heater, Tubular Heaters, Band Heaters, Silicone Rubber Heaters, Cast-in Heaters, Infrared Ceramic Heater, Thermocouples, PT100 Sensors, Polyimide Heater
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
Factory Price Thermocouple with Plug

Factory Price Thermocouple with Plug

US $ 3-4 / Piece FOB
10 Pieces (MOQ)
More
Certification : CE
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
Top Selling Pipe Clamp Style K Thermocouple Type K with Omage Plug

Top Selling Pipe Clamp Style K Thermocouple Type K with Omage Plug

US $ 3.9-6 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Cartridge Heaters, Hot Runner Heater, Tubular Heaters, Band Heaters, Silicone Rubber Heaters, Cast-in Heaters, Infrared Ceramic Heater, Thermocouples, PT100 Sensors, Polyimide Heater
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
Topright High Quality Ceramic Sheath Thermocouple R/S/B for High Temperature

Topright High Quality Ceramic Sheath Thermocouple R/S/B for High Temperature

US $ 80-95 / Piece FOB
1 Piece (MOQ)
More
Measuring Medium : Temperature
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
Probe Dia. 2.5mm J Type Thermocouple Stainless Steel Probe Length 50mm Thermocouple

Probe Dia. 2.5mm J Type Thermocouple Stainless Steel Probe Length 50mm Thermocouple

US $ 5.5-9 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Cartridge Heaters, Hot Runner Heater, Tubular Heaters, Band Heaters, Silicone Rubber Heaters, Cast-in Heaters, Infrared Ceramic Heater, Thermocouples, PT100 Sensors, Polyimide Heater
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
Platinum Rhodium Thermocouple R S B Type High Temperature Corundum Thermocouple 0-1600 Degrees Temperature Sensor Probe

Platinum Rhodium Thermocouple R S B Type High Temperature Corundum Thermocouple 0-1600 Degrees Temperature Sensor Probe

US $ 80-95 / Piece FOB
1 Piece (MOQ)
More
Customized : Customized
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
K J Type Thermocouple Shielded Wire Thermocouple Temperature Sensor

K J Type Thermocouple Shielded Wire Thermocouple Temperature Sensor

US $ 4-6 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Cartridge Heaters, Hot Runner Heater, Tubular Heaters, Band Heaters, Silicone Rubber Heaters, Cast-in Heaters, Infrared Ceramic Heater, Thermocouples, PT100 Sensors, Polyimide Heater
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
3mm Hole Ring K Type Thermocouple Sensor with 25mm Wire Length

3mm Hole Ring K Type Thermocouple Sensor with 25mm Wire Length

US $ 3.5-6 / Piece FOB
10 Pieces (MOQ)
More
Contact : Contactless
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
Wholesale M6 Thermocouple J Type From China

Wholesale M6 Thermocouple J Type From China

US $ 4-7 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Cartridge Heaters, Hot Runner Heater, Tubular Heaters, Band Heaters, Silicone Rubber Heaters, Cast-in Heaters, Infrared Ceramic Heater, Thermocouples, PT100 Sensors, Polyimide Heater
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
Abrasion Resistant Armoured Temperature Sensor S Type Thermocouple for Cement

Abrasion Resistant Armoured Temperature Sensor S Type Thermocouple for Cement

US $ 80-95 / Piece FOB
1 Piece (MOQ)
More
Measuring Medium : Temperature
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Topright Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2019
Chat Now Send Inquiry
Electric Thermocouple Thermocouple Wire Resistance Wire Constantan Copper Thermocouple Bare Wire Alloy Thermocouple Bare Wire
View More

Related Searches

Thermocouple Cable K Type Thermocouple K Thermocouple J Type Thermocouple S Type Thermocouple R Type Thermocouple B Type Thermocouple Industrial Thermocouple Thermocouple Wire K Thermocouple Wire

Browse by Categories

Home > Electrical & Electronics > Optical Fiber, Cable & Wire > Electric Wire & Cable
1/93
TOP

Search Filter

Categories

More Less
  • Electric Wire & Cable
  • Temperature & Humidity Sensor
  • Nickel
  • Alloy
  • Heating Element
  • Alloy Steel
  • Nickel Alloy
  • Terminals
  • Steel Sheet & Plate
  • Power Cable

Application

More Less
  • Heating
  • Overhead
  • Underground

Certification

More Less
  • ISO9001
  • RoHS
  • CE
  • CCC

Conductor Type

More Less
  • Solid
  • Stranded

Insulation Material

More Less
  • Bare
  • Fiberglass
  • PVC
  • Silicone Rubber
  • Teflon
  • Rubber
  • Enameled
  • PE
  • XLPE

Material Shape

More Less
  • Round Wire
  • Flat Wire

Company Type

More Less
  • Trading Company
  • Manufacturer/Factory

Company Location

More Less
  • Jiangsu
  • Shanghai
  • Shandong
  • Zhejiang
  • Anhui
  • Hubei
  • Guangdong
  • Henan
  • Chongqing
  • Hebei
  • Fujian
  • Tianjin

Product Types

More Less
  • SecuredTrading
  • Buy Sample
Reset Done