Products

Suppliers
Filter Gallery
147,922

Water Tank Switch

Products
Float Switch Level Switch Float Level Switch Sensor Switch Reed Switch Level Control Switch

Sorry! No matches were found.

Vertical Liquid Water Level Floater Flow Reed Switch Fish Tank

Vertical Liquid Water Level Floater Flow Reed Switch Fish Tank

US $ 7.99-11.99 / Piece FOB
99 Pieces (MOQ)
More
Main Products: Float Ball, Level Sensor, Float Switch
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Dongguan Bohan Intelligent Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
NPT 1" Thread Stainless Steel 304 316 Liquid Water Fuel Oil Diesel Tank Low Level Alarm NBR Float Switch

NPT 1" Thread Stainless Steel 304 316 Liquid Water Fuel Oil Diesel Tank Low Level Alarm NBR Float Switch

US $ 2.59-2.99 / Piece FOB
10 Pieces (MOQ)
More
Material : Stainless Steel
Contact Supplier
Audited Supplier Audited Supplier Since 2025
Dongguan Dalang Ao'er Sensor Co., Ltd.

Trading Company

Guangdong, China Since 2025
Chat Now Send Inquiry
IP68 Simple Structure Performance Mechanical Cable Water Liquid Control Float Level Switch for for Valves Sewage Pumping Station Water Tank Drainage Pump

IP68 Simple Structure Performance Mechanical Cable Water Liquid Control Float Level Switch for for Valves Sewage Pumping Station Water Tank Drainage Pump

US $ 6-30 / Piece FOB
100 Pieces (MOQ)
More
Main Products: Water Level Sensor, Pump Controller, Float Switch
Contact Supplier
Audited Supplier Audited Supplier Since 2017
SJE-Rhombus (Suzhou) Co., Ltd

Manufacturer/Factory

Jiangsu, China Since 2017
Chat Now Send Inquiry
Stainless Steel 304/SUS316 Low Level Alarm Switch for Liquid Water Diesel Fuel Oil Tank with NBR Float

Stainless Steel 304/SUS316 Low Level Alarm Switch for Liquid Water Diesel Fuel Oil Tank with NBR Float

US $ 2.59-2.99 / Piece FOB
10 Pieces (MOQ)
More
Material : Stainless Steel
Contact Supplier
Audited Supplier Audited Supplier Since 2025
Dongguan Dalang Ao'er Sensor Co., Ltd.

Trading Company

Guangdong, China Since 2025
Chat Now Send Inquiry
Rotating Paddle Fork Vibrating Magnetic Float Reed Micro Level Switch for Fuel Oil Water Tank Vessel Flow Control with Sensor

Rotating Paddle Fork Vibrating Magnetic Float Reed Micro Level Switch for Fuel Oil Water Tank Vessel Flow Control with Sensor

US $ 60-65 / Piece FOB
1 Piece (MOQ)
More
Main Products: Level Gauge, Flow Meter, Relex Level Gauge, Sight Glass, Strainer and Filter, Glass Level Gauge, Level Meter, Magnetic Level Gauge, Sight Glass Flow Indicator, Level Switch
Contact Supplier
Audited Supplier Audited Supplier Since 2013
Hebei Xukang Meter Manufacturing Co., Ltd.

Manufacturer/Factory,Trading Company

Hebei, China Since 2013
Chat Now Send Inquiry
Double Ball SUS304 Water Storage Tank Level Sensor Magnetic Mechanical Float Switches

Double Ball SUS304 Water Storage Tank Level Sensor Magnetic Mechanical Float Switches

US $ 2-3 / Piece FOB
100 Pieces (MOQ)
More
Production Process : Normal Wirewound
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Focus Sensing and Control Technology Co., Ltd.

Manufacturer/Factory

Anhui, China Since 2017
Chat Now Send Inquiry
NPT 1" Thread Stainless Steel 304/316 Water Diesel Fuel Oil Tank Low Level Alarm Switch

NPT 1" Thread Stainless Steel 304/316 Water Diesel Fuel Oil Tank Low Level Alarm Switch

US $ 2.59-2.99 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Fuel Level Sensors, Level Switch, Mechanical Level Fuel Gauge
Contact Supplier
Audited Supplier Audited Supplier Since 2025
Dongguan Dalang Ao'er Sensor Co., Ltd.

Trading Company

Guangdong, China Since 2025
Chat Now Send Inquiry
Liquid Control Level Switch Water Tank Float Level Switch

Liquid Control Level Switch Water Tank Float Level Switch

1 Piece (MOQ)
More
Output Signal Type : Switching Type
Contact Supplier
Audited Supplier Audited Supplier Since 2018
Changsong Electric Co., Ltd.

Manufacturer/Factory,Trading Company

Zhejiang, China Since 2018
Chat Now Send Inquiry
Electric Automatic Water Level Control Ball Float Switch Level Regulator Liquid Level Sensor for Submersible Water Pumps Pump Stations Tanks Aquariums Pools

Electric Automatic Water Level Control Ball Float Switch Level Regulator Liquid Level Sensor for Submersible Water Pumps Pump Stations Tanks Aquariums Pools

US $ 10-50 / pcs FOB
100 pcs (MOQ)
More
Main Products: Centrifugal Pump, Submersible Pump, Fuel Transfer Pump, Condensate Pump, Cooling Pump, Tools, Booster Pump, Level Regulator, Sefl-Priming Pump, Sewage Pump
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Mepcato Machinery Limited

Guangdong, China Since 2014
Chat Now Send Inquiry
Water Fuel Oil Tank NPT 1" Thread Stainless Steel 304/316 Low Level Alarm Switch

Water Fuel Oil Tank NPT 1" Thread Stainless Steel 304/316 Low Level Alarm Switch

US $ 2.59-2.99 / Piece FOB
10 Pieces (MOQ)
More
Certification : ISO
Contact Supplier
Audited Supplier Audited Supplier Since 2025
Dongguan Dalang Ao'er Sensor Co., Ltd.

Trading Company

Guangdong, China Since 2025
Chat Now Send Inquiry
NPT 1" Thread Stainless Steel 304/316 Liquid Water Fuel Oil Tank Low Level Alarm NBR Float Switch

NPT 1" Thread Stainless Steel 304/316 Liquid Water Fuel Oil Tank Low Level Alarm NBR Float Switch

US $ 2.59-2.99 / Piece FOB
10 Pieces (MOQ)
More
Main Products: S3 and S5 Fuel Level Sensors, Level Switch/Pump Control Switch, Mechanical Level Fuel Gauge, Lead-Acid Battery Charger, Genset Controller Relay Extension Board/Module, Oil Presusre Sensor/Water Temp. Sensor, Mechanical Parts, Instrumental Gauge, Submersible Level Sensor, Capacitive Level Sensor
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Bluefin Sensor Technologies Limited

Manufacturer/Factory

Guangdong, China Since 2017
Chat Now Send Inquiry
High Impact, Corrosion Resistant, PP Plastic Water Tank Fluid Level Control Float Switch for Pump Control Panels and Alarms

High Impact, Corrosion Resistant, PP Plastic Water Tank Fluid Level Control Float Switch for Pump Control Panels and Alarms

US $ 16-40 / Piece FOB
100 Pieces (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2017
SJE-Rhombus (Suzhou) Co., Ltd

Manufacturer/Factory

Jiangsu, China Since 2017
Chat Now Send Inquiry
Diesel Generator Liquid Level Sensor Electrical Control System Reed Switch Pressure Switch Liquid Level Transmitter
Custom Length Cable Level Sensor Stainless Steel Ball Vertical Float Switch for Water Tank

Custom Length Cable Level Sensor Stainless Steel Ball Vertical Float Switch for Water Tank

US $ 2.99-3.99 / Piece FOB
500 Pieces (MOQ)
More
Main Products: Float Ball, Level Sensor, Float Switch
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Dongguan Bohan Intelligent Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
RS485 Tank Throw in Level Water Switch

RS485 Tank Throw in Level Water Switch

US $ 180-300 / Piece FOB
1 Piece (MOQ)
More
Customized : Customized
Contact Supplier
Audited Supplier Audited Supplier Since 2016
Hefei WNK Smart Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Anhui, China Since 2016
Chat Now Send Inquiry
Height Water Level Cable Switch for Water Tank Pump Float Switch

Height Water Level Cable Switch for Water Tank Pump Float Switch

US $ 2-15 / pieces FOB
1 pieces (MOQ)
More
Main Products: Cartridge Heater, Thermocouple, Silicone Heater, Flexible Heater, Tubular Heater, Immersion Heater, Polyimide Heater, Band Heater, Drum Heater, Hot Runner Heater
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Taizhou Best Electric Equipment Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2024
Chat Now Send Inquiry
Electrical Equipment Water Tank Level Sensor Water Pump Float Switch Pumping Level Sensor

Electrical Equipment Water Tank Level Sensor Water Pump Float Switch Pumping Level Sensor

US $ 14 / Piece FOB
50 Pieces (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Zhejiang Shuntong Electric Co., Ltd.

Manufacturer/Factory,Trading Company

Zhejiang, China Since 2017
Chat Now Send Inquiry
PP Float Switch Water Tank Level Water Level Controller Acid Lye Level Water Level Float Switch Magnetic Switch

PP Float Switch Water Tank Level Water Level Controller Acid Lye Level Water Level Float Switch Magnetic Switch

US $ 2.99-20 / Piece FOB
1 Piece (MOQ)
More
Main Products: Level Sensor, Float Switch, Fuel Gauge, Fuel Sensor, Float Level Sensor, Mechanical Gauge, Sensor, Liquid Level Meter
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Dongguan Fosselle Electronics Co., Ltd

Manufacturer/Factory,Trading Company

Guangdong, China Since 2023
Chat Now Send Inquiry
Mechanical Water Pump Pressure Control Pressure Switch for Tank

Mechanical Water Pump Pressure Control Pressure Switch for Tank

US $ 1.35-1.4 / Piece FOB
2,000 Pieces (MOQ)
More
Usage : Control Switch
Contact Supplier
Audited Supplier Audited Supplier Since 2021
ZHEJIANG JIUBEN ELECTRIC APPLIANCE CO., LTD.

Trading Company

Zhejiang, China Since 2021
Chat Now Send Inquiry
Domestic Water Tank Level Float Switch & Water Level Controller

Domestic Water Tank Level Float Switch & Water Level Controller

US $ 2.2-2.5 / Piece FOB
1 Piece (MOQ)
More
Main Products: Pump Controller, Water Pump Control, Pump Control Panel, Float Switch, Pressure Switch, Water Level Transmitter, Online Pump Soft Starter, Frequency Inverter Cabinet, Motor Protector, Phase Loss Protector
Contact Supplier
Audited Supplier Audited Supplier Since 2021
Shanghai Winning Electric Co., Ltd.

Manufacturer/Factory,Trading Company

Shanghai, China Since 2021
Chat Now Send Inquiry
High Quality Oil Water Tank Vibration Tuning Fork Level Switch

High Quality Oil Water Tank Vibration Tuning Fork Level Switch

US $ 120-185 / Piece FOB
1 Piece (MOQ)
More
Certification : CE
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Nanjing Hangjia Electronic Technology Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2019
Chat Now Send Inquiry
Related Videos
  • What is Vertical Liquid Water Level Floater Flow Reed Switch Fish Tank
    What is Vertical Liquid Water Level Floater Flow Reed Switch Fish Tank
    Negotiable
    99 Pieces (MOQ)
    Contact Supplier
  • What is Rotating Paddle Fork Vibrating Magnetic Float Reed Micro Level Switch for Fuel Oil Water Tank Vessel Flow Control with Sensor
    What is Rotating Paddle Fork Vibrating Magnetic Float Reed Micro Level Switch for Fuel Oil Water Tank Vessel Flow Control with Sensor
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
  • What is Double Ball SUS304 Water Storage Tank Level Sensor Magnetic Mechanical Float Switches
    What is Double Ball SUS304 Water Storage Tank Level Sensor Magnetic Mechanical Float Switches
    Negotiable
    100 Pieces (MOQ)
    Contact Supplier
  • What is Liquid Control Level Switch Water Tank Float Level Switch
    What is Liquid Control Level Switch Water Tank Float Level Switch
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
Float Switch with 3m 3*0.75PVC with Counter Weight Used for Tower Water Tank

Float Switch with 3m 3*0.75PVC with Counter Weight Used for Tower Water Tank

US $ 2.95-3.15 / Piece FOB
500 Pieces (MOQ)
More
Main Products: Automatic Pump Control, Water Pump Pressure Control, Float Switch, Air Compressor Pressure Switch, Pressure Control for Pump, Water Pump Control, Electric Pump Control, Pressure Switch Control
Contact Supplier
Audited Supplier Audited Supplier Since 2021
Zhejiang Monro M&E Co., Ltd.

Trading Company

Zhejiang, China Since 2021
Chat Now Send Inquiry
The Top Sales Production Easy Catch Water Tank Level Switch

The Top Sales Production Easy Catch Water Tank Level Switch

US $ 19-55 / Piece FOB
20 Pieces (MOQ)
More
Process Temperature : -20℃~80℃
Contact Supplier
Audited Supplier Audited Supplier Since 2009
Shanghai Cixi Instrument Co., Ltd.

Manufacturer/Factory,Trading Company,Other

Shanghai, China Since 2009
Chat Now Send Inquiry
Small Size Water Tank Level Float Switch Switches

Small Size Water Tank Level Float Switch Switches

US $ 1 / Piece FOB
300 Pieces (MOQ)
More
Main Products: Level Switch and Sensor, Magnetic Sensor, Flow Switch and Sensor, Speed Sensor, Temperature Sensor, Angle and Incline Sensor, Proof-Cooling Switches, Magnetic Guidance Sensor, Displacement Sensor, Magnetic Safety Switches
Contact Supplier
Audited Supplier Audited Supplier Since 2005
Shanghai Yuanben Magnetoelectric Tech. Co., Ltd.

Manufacturer/Factory

Shanghai, China Since 2005
Chat Now Send Inquiry
High Quality Oil Water Tank Tuning Fork Level Switch with Ce Approval

High Quality Oil Water Tank Tuning Fork Level Switch with Ce Approval

US $ 75 / Piece FOB
1 Piece (MOQ)
More
Structure : All in One
Contact Supplier
Audited Supplier Audited Supplier Since 2020
Yantai Auto Instrument Making Co., Ltd.

Trading Company

Shandong, China Since 2020
Chat Now Send Inquiry

Not exactly what you want?

Post Sourcing Request

Simple Structure Customized Flow Switch for Plant Waste Water Tank

Simple Structure Customized Flow Switch for Plant Waste Water Tank

US $ 11.5-12.67 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Sensors, Level Switch, Float Level Sensor, Float Level Switch, Flow Sensor, Level Sensor, Flow Switch, Proximity Switch, Liquid Level Sensor, Liquid Level Switch
Contact Supplier
Audited Supplier Audited Supplier Since 2020
Ningbo Mingrui Zhongxing Electronics Technology Co., Ltd.

Manufacturer/Factory,Trading Company,Individuals/SOHO

Zhejiang, China Since 2020
Chat Now Send Inquiry
Macsensor 150-1300mm Water Level Float Liquid Level Switch for Water Tank

Macsensor 150-1300mm Water Level Float Liquid Level Switch for Water Tank

US $ 65-105 / Piece FOB
1 Piece (MOQ)
More
Material : Stainless Steel
Contact Supplier
Audited Supplier Audited Supplier Since 2021
Hunan Mac Sensor Co., Ltd.

Trading Company

Hunan, China Since 2021
Chat Now Send Inquiry
Lfr-2 2meters Float Switch, Float Switch Lfr-2 Water Level Controller, Lfr-2 Tank Level Switch, Ce Proved Float Switch, ISO9001 Proved Float Switch

Lfr-2 2meters Float Switch, Float Switch Lfr-2 Water Level Controller, Lfr-2 Tank Level Switch, Ce Proved Float Switch, ISO9001 Proved Float Switch

US $ 1.35-1.6 / Piece FOB
500 Pieces (MOQ)
More
Main Products: Isolating Switch, Relay, Power Transformer, AC Contactors, Pushbutton Switches, Proximity Switches, Photoelectric Switches, High Voltage Cabinets, Water Proof Box, Temperature Controller
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Yueqing Lifang Electric Co., Ltd.

Trading Company

Zhejiang, China Since 2019
Chat Now Send Inquiry
Fsk-14 Micro Float Switch for Water Tank Design for Machine with TUV UL ENEC CE

Fsk-14 Micro Float Switch for Water Tank Design for Machine with TUV UL ENEC CE

US $ 1-2 / Piece FOB
1,000 Pieces (MOQ)
More
Pressing Type : Push-Button
Contact Supplier
Audited Supplier Audited Supplier Since 2020
YUEQING TONGDA WIRE ELECTRIC FACTORY

Trading Company

Zhejiang, China Since 2020
Chat Now Send Inquiry
Magnetic Continuous Float Sensor Switch Floater Automatic Water Tank Liquid Level Reed Switch Non-Contact

Magnetic Continuous Float Sensor Switch Floater Automatic Water Tank Liquid Level Reed Switch Non-Contact

US $ 0.9-99 / Piece FOB
1 Piece (MOQ)
More
Main Products: Shaft/Joint/Worm/Screw/Bushing, Sensor/Lvdt, Motor/DC Motor/BLDC Motor/PMDC Motor, Machining Parts/Precision Parts/Motor Parts/, Couplings/Accessories
Contact Supplier
Since 2022
Suzhou Mastery Machinery Technology Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2022
Chat Now Send Inquiry
Great Standard Favorites Cable Float Level Switch Float Switch Water Tank Fuel Level Sensors New Type 2m Float Switch

Great Standard Favorites Cable Float Level Switch Float Switch Water Tank Fuel Level Sensors New Type 2m Float Switch

US $ 10 / Piece FOB
5 Pieces (MOQ)
More
Feature : SemiConductor
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Changzhou Bojia Control Technolog Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2022
Chat Now Send Inquiry
M15-3 220V Plastic Water Tank Flow Switch Float Level Control Switch Automatic Float Switch for Sump Water Pump Water Level Sensor

M15-3 220V Plastic Water Tank Flow Switch Float Level Control Switch Automatic Float Switch for Sump Water Pump Water Level Sensor

US $ 1-3.5 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Weatherproof Switch Socket, Foot Switch, Waterproof Electric Box, Solar, Limit Switch, Rotary Switch, Float Switch, Transfomer, Terminal, Combination Socket Box & Portable Socket Box
Contact Supplier
Audited Supplier Audited Supplier Since 2016
Yueqing Ann Electric Co., Ltd.

Manufacturer/Factory,Trading Company

Zhejiang, China Since 2016
Chat Now Send Inquiry
Cheap Price SUS304 Industrial Electric Liquid Water Tank Level Float Switch Controller

Cheap Price SUS304 Industrial Electric Liquid Water Tank Level Float Switch Controller

US $ 3.5-30 / Piece FOB
1 Piece (MOQ)
More
Certification : CE
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Taizhou Kayson Electric Heating Technology Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2022
Chat Now Send Inquiry
M15-2 Water Tank Float Switch/ Fluid Level Controller

M15-2 Water Tank Float Switch/ Fluid Level Controller

US $ 1.5-3 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Contactor, Circuit Breaker, Relay, Starter, Switch, Meter, Fuse, Distribution Box, Electrical Accessories, MCB
Contact Supplier
Audited Supplier Audited Supplier Since 2008
Wenzhou Kasan Electric Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2008
Chat Now Send Inquiry
High Precious Display Level Switch for Water Tank

High Precious Display Level Switch for Water Tank

US $ 180-300 / Piece FOB
1 Piece (MOQ)
More
Material : Stainless Steel
Contact Supplier
Audited Supplier Audited Supplier Since 2016
Hefei WNK Smart Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Anhui, China Since 2016
Chat Now Send Inquiry
Plastic Mechanical Cable Float Switch Water Level Micro Tank Float Switch 220V Submersible Sewage

Plastic Mechanical Cable Float Switch Water Level Micro Tank Float Switch 220V Submersible Sewage

US $ 1.75-2.32 / Piece FOB
1,000 Pieces (MOQ)
More
Main Products: Capillary Thermostat, Digital Pressure Controller, Pressure Sensor, Room Thermostat, Mechanical Thermostat, Energy Regulator, Simmerstat, Thermometer, Water Pump Controller
Contact Supplier
Audited Supplier Audited Supplier Since 2016
Zhejiang Huaxi Electronics Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2016
Chat Now Send Inquiry
Low Level Alarm Switch for Liquid Water Oil Diesel Tank with NBR Float NPT 1" Thread

Low Level Alarm Switch for Liquid Water Oil Diesel Tank with NBR Float NPT 1" Thread

US $ 2.59-2.99 / Piece FOB
10 Pieces (MOQ)
More
Output Signal Type : Switching Type
Contact Supplier
Audited Supplier Audited Supplier Since 2025
Dongguan Dalang Ao'er Sensor Co., Ltd.

Trading Company

Guangdong, China Since 2025
Chat Now Send Inquiry
Float Switch Level Switch Float Level Switch Sensor Switch Reed Switch Level Control Switch
View More

Related Searches

Pressure Switch Switch Level Switch Water Level Sensor Water Level Controller Oil Level Sensor Level Sensor Pump Switch Tank Water Level Wholesale Water Tank Switch

Browse by Categories

Home > Industrial Equipment & Components > Power & Generating Sets > Diesel Generator
1/834
TOP

Search Filter

Categories

More Less
  • Diesel Generator
  • Liquid Level Sensor
  • Electrical Control System
  • Reed Switch
  • Pressure Switch
  • Liquid Level Transmitter
  • Sensor Switch
  • Flow Switch
  • Other Switches
  • Other Electronics

Certification

More Less
  • CE
  • ISO
  • RoHS
  • CCC

Contact

More Less
  • Contact
  • Contactless

Customized

More Less
  • Customized
  • Non-Customized

Feature

More Less
  • Corrosion Resistant
  • SemiConductor
  • Low Temperature Resistant
  • Conductor

Material

More Less
  • Stainless Steel
  • Plastic
  • Metal
  • Ceramics

Company Type

More Less
  • Manufacturer/Factory
  • Trading Company
  • Group Corporation
  • Individuals/SOHO
  • Other

Company Location

More Less
  • Shandong
  • Guangdong
  • Jiangsu
  • Zhejiang
  • Fujian
  • Shanghai
  • Henan
  • Hebei
  • Hunan
  • Hubei
  • Anhui
  • Shaanxi
  • Chongqing
  • Beijing
  • Liaoning
  • Tianjin
  • Jiangxi
  • Heilongjiang
  • Sichuan
  • Gansu
  • Guangxi
  • Hainan
  • Shanxi
  • Inner Mongolia
  • Yunnan

Product Types

More Less
  • SecuredTrading
  • Buy Sample
Reset Done