Products

Suppliers
Filter Gallery
2,750

Passive Infrared Detector Price

Products
Infrared Motion Detector Pir Detector Flame Detector Pir Sensor Pir Motion Detector Sensor

Sorry! No matches were found.

Wireless Alarm System Wide Angle Passive Infrared Motion Sensor Detector Ms-801

Wireless Alarm System Wide Angle Passive Infrared Motion Sensor Detector Ms-801

100 Pieces (MOQ)
More
Main Products: Smoke Alarm, Smoke Detector, Fire Detector, Magnetic Contact, Co Alarm, Co Detector, Gas Detector, Carbon Monoxide Detector, Heat Detector, Smoke Sensor
Contact Supplier
Audited Supplier Audited Supplier Since 2010
Ningbo Sentek Electronics Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2010
Chat Now Send Inquiry
Popular Alarm System Outdoor Intelligent Passive Infrared Detector Wireless Pet Immune PIR Sensor

Popular Alarm System Outdoor Intelligent Passive Infrared Detector Wireless Pet Immune PIR Sensor

US $ 6.5 / Piece FOB
100 Pieces (MOQ)
More
Signal Transmission : Wired Alarm
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Shenzhen Sumring Technology Co., Limited

Manufacturer/Factory,Trading Company

Guangdong, China Since 2017
Chat Now Send Inquiry
Wireless Passive Infrared Sensor PIR Motion Detector with Rechargeable Li Battery

Wireless Passive Infrared Sensor PIR Motion Detector with Rechargeable Li Battery

US $ 4-7 / Piece FOB
1 Piece (MOQ)
More
Main Products: Alarm System, Security Products, Beam Sensor, Alarm, Door Magnetic Switch, GSM Alarm, Remote Control Switch, Door Sensor Window Sensor, Strobe Siren, Photoelectric Beam Detector
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Ease Security Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2014
Chat Now Send Inquiry
Dual Passive Infrared Detective Technology Detector, Wired PIR Detector

Dual Passive Infrared Detective Technology Detector, Wired PIR Detector

US $ 5.3-6.2 / Piece FOB
10 Pieces (MOQ)
More
Application : Home, Industry, Communication Electronic Products
Contact Supplier
Audited Supplier Audited Supplier Since 2010
Shenzhen Taian Electronics Co., Ltd.

Manufacturer/Factory,Trading Company,Other

Guangdong, China Since 2010
Chat Now Send Inquiry
Haiwang China Fixed Gain Amplifier Passive Infrared Controller Factory Microwave Detector for Automatic Handbasin

Haiwang China Fixed Gain Amplifier Passive Infrared Controller Factory Microwave Detector for Automatic Handbasin

US $ 0.1-0.2 / Piece FOB
1,000 Pieces (MOQ)
More
Main Products: Microwave Radar Sensor Module, PIR Sensor Module, Fresnel Lens, PIR Sensor/PIR IC/PIR Lens, Ldr Sensor/Light Sensor, Magnifying Card, Anti Sleep Alarm, Personal Alarm, Bike Light, Vr Case
Contact Supplier
Audited Supplier Audited Supplier Since 2016
HW INDUSTRIAL CO., LTD

Manufacturer/Factory,Trading Company

Guangdong, China Since 2016
Chat Now Send Inquiry
Wired Infrared Motion Detector, Dual Element Passive Alarm Infrared Movement Detector Is-215t

Wired Infrared Motion Detector, Dual Element Passive Alarm Infrared Movement Detector Is-215t

US $ 5-5.5 / Piece FOB
100 Pieces (MOQ)
More
Transmission Mode : Cable
Contact Supplier
Audited Supplier Audited Supplier Since 2010
Shenzhen Taian Electronics Co., Ltd.

Manufacturer/Factory,Trading Company,Other

Guangdong, China Since 2010
Chat Now Send Inquiry
Security Selectable Outdoor Passive Infrared Motion Detector (LX-402)

Security Selectable Outdoor Passive Infrared Motion Detector (LX-402)

US $ 27-29.8 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Battery, Beam Sensors, Infrared Detector, Alarm Host, Outdoor Detector, Microwave Detector, Outdoor Horn, Vibration Sensors, Smoke Detector, Magnetic Contacts
Contact Supplier
Audited Supplier Audited Supplier Since 2010
Shenzhen Taian Electronics Co., Ltd.

Manufacturer/Factory,Trading Company,Other

Guangdong, China Since 2010
Chat Now Send Inquiry
Elevator Curtain Passive Infrared Detector 2-in-1 Door Detector

Elevator Curtain Passive Infrared Detector 2-in-1 Door Detector

US $ 20-50 / Piece FOB
1 Piece (MOQ)
More
Use of Occasions : Public Traffic
Contact Supplier
Audited Supplier Audited Supplier Since 2013
Shanghai Sunny Elevator Co., Ltd.

Manufacturer/Factory,Trading Company

Shanghai, China Since 2013
Chat Now Send Inquiry
Intruder Alarm Passive Infrared Vertical View Motion Detector (LH-910D)

Intruder Alarm Passive Infrared Vertical View Motion Detector (LH-910D)

US $ 6.23 / Piece FOB
100 Pieces (MOQ)
More
Main Products: Battery, Beam Sensors, Infrared Detector, Alarm Host, Outdoor Detector, Microwave Detector, Outdoor Horn, Vibration Sensors, Smoke Detector, Magnetic Contacts
Contact Supplier
Audited Supplier Audited Supplier Since 2010
Shenzhen Taian Electronics Co., Ltd.

Manufacturer/Factory,Trading Company,Other

Guangdong, China Since 2010
Chat Now Send Inquiry
Wired PIR Motion Sensor Dual Passive Infrared Detector for Home Burglar Security Alarm System

Wired PIR Motion Sensor Dual Passive Infrared Detector for Home Burglar Security Alarm System

US $ 5.9-7.9 / Piece FOB
50 Pieces (MOQ)
More
Usage : Anti-theft
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Zuden Technology (HK) Co., Limited

Manufacturer/Factory

Guangdong, China Since 2006
Chat Now Send Inquiry
Mini Alarm Wired PIR Motion Sensor, Passive Infrared Motion Detector Lh-910d

Mini Alarm Wired PIR Motion Sensor, Passive Infrared Motion Detector Lh-910d

US $ 6.23 / Piece FOB
100 Pieces (MOQ)
More
Main Products: Battery, Beam Sensors, Infrared Detector, Alarm Host, Outdoor Detector, Microwave Detector, Outdoor Horn, Vibration Sensors, Smoke Detector, Magnetic Contacts
Contact Supplier
Audited Supplier Audited Supplier Since 2010
Shenzhen Taian Electronics Co., Ltd.

Manufacturer/Factory,Trading Company,Other

Guangdong, China Since 2010
Chat Now Send Inquiry
Microwave Motion Detector Wall-Mounted Passive Infrared PIR Alarm Detectors for Outdoor

Microwave Motion Detector Wall-Mounted Passive Infrared PIR Alarm Detectors for Outdoor

US $ 6.5 / Piece FOB
100 Pieces (MOQ)
More
Signal Transmission : Wired Alarm
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Shenzhen Sumring Technology Co., Limited

Manufacturer/Factory,Trading Company

Guangdong, China Since 2017
Chat Now Send Inquiry
Alarm Probe, Sensor Fire Alarm & Smoke Detector Infrared Sensor CCTV Camera Signal Jammer
Passive Relay Output Infrared Flame Detector Explosion-Proof Exdiict6 (D623)

Passive Relay Output Infrared Flame Detector Explosion-Proof Exdiict6 (D623)

US $ 615 / Piece FOB
5 Pieces (MOQ)
More
Main Products: Portable Gas Detector, Combustible Gas Alarm, Breath Alcohol Tester, Fixed Gas Detector, Gas Detection System, Carbon Monoxide Alarm, Smart Gas Alarm, Gas Sensor
Contact Supplier
Audited Supplier Audited Supplier Since 2018
HANWEI ELECTRONICS GROUP CORPORATION

Manufacturer/Factory

Henan, China Since 2018
Chat Now Send Inquiry
Sumring Wholesale Price Smoke Detector Standalone for Fire Alarm System

Sumring Wholesale Price Smoke Detector Standalone for Fire Alarm System

US $ 2.3-3.55 / Piece FOB
1 Piece (MOQ)
More
Infrared Sensor Probe Type : Infrared Temperature Sensor
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Shenzhen Sumring Technology Co., Limited

Manufacturer/Factory,Trading Company

Guangdong, China Since 2017
Chat Now Send Inquiry
Cheap2024 New Products High Sensitivity Independent Smoke Detectors Long-Life for Listing Price Cheap

Cheap2024 New Products High Sensitivity Independent Smoke Detectors Long-Life for Listing Price Cheap

US $ 3.15-3.55 / Piece FOB
1 Piece (MOQ)
More
Main Products: Smoke Detector, Gas Detector, Bluetooth Module, PIR Motion Detector, Heat Detector, Strobe Siren, Magnetic Switch, Panic Button, Fire Alarm, Manual Call Point
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Shenzhen Sumring Technology Co., Limited

Manufacturer/Factory,Trading Company

Guangdong, China Since 2017
Chat Now Send Inquiry
2024 New Independent Smoke Detectors with 5 Years Lifespan Novel Appearance Price

2024 New Independent Smoke Detectors with 5 Years Lifespan Novel Appearance Price

US $ 3.15-3.55 / Piece FOB
1 Piece (MOQ)
More
Infrared Sensor Installation : Ceiling
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Shenzhen Sumring Technology Co., Limited

Manufacturer/Factory,Trading Company

Guangdong, China Since 2017
Chat Now Send Inquiry
12-24V Kitchen Cabinet Closet Wardrobe LED Light PIR Passive Infrared Detector

12-24V Kitchen Cabinet Closet Wardrobe LED Light PIR Passive Infrared Detector

US $ 3.59-5.59 / Piece FOB
50 Pieces (MOQ)
More
Main Products: LED Sensor Light, Sensor Switch, Light Profile, LED Cabinet Light, LED Caravan Light
Contact Supplier
Audited Supplier Audited Supplier Since 2022
SHENZHEN FITLED LIGHTING CO., LTD.

Manufacturer/Factory,Trading Company

Guangdong, China Since 2022
Chat Now Send Inquiry
Passive Infrared Zwave PIR Detector

Passive Infrared Zwave PIR Detector

100 Pieces (MOQ)
More
Type : Home Alarm
Contact Supplier
Audited Supplier Audited Supplier Since 2010
Ningbo Sentek Electronics Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2010
Chat Now Send Inquiry
PIR Motion Sensor Detector Wired Ceiling Mounted Passive Infrared Detector

PIR Motion Sensor Detector Wired Ceiling Mounted Passive Infrared Detector

US $ 5.9-8.9 / Piece FOB
50 Pieces (MOQ)
More
Main Products: Alarm System, Access Control, Electromagnetic Lock, Home Security System, Strobe Alarm Siren, Magnetic Contact, WiFi Home Security Wireless Burglar GSM Alarm, Home Security Wireless Burglar GSM Alarm System, Metal Standalone RFID Door Access Control, Smart Home
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Zuden Technology (HK) Co., Limited

Manufacturer/Factory

Guangdong, China Since 2006
Chat Now Send Inquiry
Hot Smoke Detector for Fire Alarm System High Sensitive

Hot Smoke Detector for Fire Alarm System High Sensitive

US $ 2.3-3.55 / Piece FOB
1 Piece (MOQ)
More
Types of Smoke Detectors : Infrared Beam Smoke Style
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Shenzhen Sumring Technology Co., Limited

Manufacturer/Factory,Trading Company

Guangdong, China Since 2017
Chat Now Send Inquiry
Related Videos
  • What is Wireless Alarm System Wide Angle Passive Infrared Motion Sensor Detector Ms-801
    What is Wireless Alarm System Wide Angle Passive Infrared Motion Sensor Detector Ms-801
    Negotiable
    100 Pieces (MOQ)
    Contact Supplier
  • What is Elevator Curtain Passive Infrared Detector 2-in-1 Door Detector
    What is Elevator Curtain Passive Infrared Detector 2-in-1 Door Detector
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
  • What is Wired PIR Motion Sensor Dual Passive Infrared Detector for Home Burglar Security Alarm System
    What is Wired PIR Motion Sensor Dual Passive Infrared Detector for Home Burglar Security Alarm System
    Negotiable
    50 Pieces (MOQ)
    Contact Supplier
  • What is Sumring Wholesale Price Smoke Detector Standalone for Fire Alarm System
    What is Sumring Wholesale Price Smoke Detector Standalone for Fire Alarm System
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
Afd100 Infrared UV Flame Detector

Afd100 Infrared UV Flame Detector

US $ 280 / Piece FOB
1 Piece (MOQ)
More
Main Products: Gas Detector, Portable Gas Detector, Gas Monitor, Fixed Gas Detector, Gas Detection System, Gas Analyzer, China Gas Detector, Gas Sensor, Dust Monitor, Gas Meter
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Nanjing AIYI Technologies Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2017
Chat Now Send Inquiry
Photoelectric Smoke Detector Fire Alarm Security Systems

Photoelectric Smoke Detector Fire Alarm Security Systems

US $ 4.8-6.2 / Piece FOB
200 Pieces (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Guangzhou Kinglaiky Industrial Ltd.,

Manufacturer/Factory

Guangdong, China Since 2014
Chat Now Send Inquiry
Outdoor Infrared+Microwave Dual-Tech PIR Motion Detector (FT-85)

Outdoor Infrared+Microwave Dual-Tech PIR Motion Detector (FT-85)

US $ 19-25 / Piece FOB
1 Piece (MOQ)
More
Main Products: Alarm System, Security Products, Beam Sensor, Alarm, Door Magnetic Switch, GSM Alarm, Remote Control Switch, Door Sensor Window Sensor, Strobe Siren, Photoelectric Beam Detector
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Ease Security Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2014
Chat Now Send Inquiry
New Developed Wireless WiFi Alarm Tuya Smart Life WiFi PIR Motion Detector Hw-W09

New Developed Wireless WiFi Alarm Tuya Smart Life WiFi PIR Motion Detector Hw-W09

US $ 7.5-8.5 / Piece FOB
500 Pieces (MOQ)
More
Certification : CE, FCC, RoHS, CCC
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Shenzhen Chitongda Electronic Co., Ltd.

Manufacturer/Factory,Trading Company

Guangdong, China Since 2006
Chat Now Send Inquiry

Not exactly what you want?

Post Sourcing Request

High Quality Indoor Air Alarm Detector Carbon Dioxide Monitor Intelligent Smart Air Quality Detector

High Quality Indoor Air Alarm Detector Carbon Dioxide Monitor Intelligent Smart Air Quality Detector

US $ 35-38 / Piece FOB
500 Pieces (MOQ)
More
Main Products: Smoke Alarm, Smoke Detector, Fire Alarm, Fire Detector, Carbon Monoxide Detector, Heat Alarm, Co Detector, Carbon Monoxide Alarm, Co Alarm, Heat Detector
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Zhejiang Jiaboer Electronic Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Zhejiang, China Since 2019
Chat Now Send Inquiry
Fixed Online H2 Hydrogen Gas Detector H2 Gas Sensor Gas Leak Detector

Fixed Online H2 Hydrogen Gas Detector H2 Gas Sensor Gas Leak Detector

US $ 100-500 / Piece FOB
2 Pieces (MOQ)
More
Type : Combustible Gas Detector
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Nanjing AIYI Technologies Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2017
Chat Now Send Inquiry
DSC Compatible Wireless PIR Motion Detector Motion Sensor with 433.92MHz

DSC Compatible Wireless PIR Motion Detector Motion Sensor with 433.92MHz

US $ 10.5-12 / Piece FOB
500 Pieces (MOQ)
More
Main Products: Smoke Alarm, Smoke Detector, Fire Detector, Magnetic Contact, Co Alarm, Co Detector, Gas Detector, Carbon Monoxide Detector, Heat Detector, Smoke Sensor
Contact Supplier
Audited Supplier Audited Supplier Since 2010
Ningbo Sentek Electronics Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2010
Chat Now Send Inquiry
High Quality Microwave Wireless Motion IR Detector for Anti-Theft Alarm System

High Quality Microwave Wireless Motion IR Detector for Anti-Theft Alarm System

50 Pieces (MOQ)
More
Certification : CE, RoHS
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Shenzhen Sumring Technology Co., Limited

Manufacturer/Factory,Trading Company

Guangdong, China Since 2017
Chat Now Send Inquiry
4 Gas Portable Multi-Gas Detector (LEL, CO, H2S, O2) H2000

4 Gas Portable Multi-Gas Detector (LEL, CO, H2S, O2) H2000

US $ 80-150 / Piece FOB
1 Piece (MOQ)
More
Main Products: Gas Detector, Portable Gas Detector, Gas Monitor, Fixed Gas Detector, Gas Detection System, Gas Analyzer, China Gas Detector, Gas Sensor, Dust Monitor, Gas Meter
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Nanjing AIYI Technologies Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2017
Chat Now Send Inquiry
Outdoor Intelligent Wired Infrared Detector for Motion Alarm

Outdoor Intelligent Wired Infrared Detector for Motion Alarm

US $ 19-25 / Piece FOB
1 Piece (MOQ)
More
Application : Indoor, Outdoor
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Ease Security Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2014
Chat Now Send Inquiry
2gig Compatible PIR Motion Detector Ms-801-H

2gig Compatible PIR Motion Detector Ms-801-H

US $ 12-18 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Smoke Alarm, Smoke Detector, Fire Detector, Magnetic Contact, Co Alarm, Co Detector, Gas Detector, Carbon Monoxide Detector, Heat Detector, Smoke Sensor
Contact Supplier
Audited Supplier Audited Supplier Since 2010
Ningbo Sentek Electronics Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2010
Chat Now Send Inquiry
2022 New Designed IP66 4 Gas Portable Detector Lel Toxic Gas

2022 New Designed IP66 4 Gas Portable Detector Lel Toxic Gas

US $ 80-150 / Piece FOB
1 Piece (MOQ)
More
Anti-Theft Alarm System Type : Sound and Light Alarm
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Nanjing AIYI Technologies Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2017
Chat Now Send Inquiry
High Performance Explosion Proof Infrared Flame Detector (D623)

High Performance Explosion Proof Infrared Flame Detector (D623)

US $ 615 / Piece FOB
5 Pieces (MOQ)
More
Main Products: Portable Gas Detector, Combustible Gas Alarm, Breath Alcohol Tester, Fixed Gas Detector, Gas Detection System, Carbon Monoxide Alarm, Smart Gas Alarm, Gas Sensor
Contact Supplier
Audited Supplier Audited Supplier Since 2018
HANWEI ELECTRONICS GROUP CORPORATION

Manufacturer/Factory

Henan, China Since 2018
Chat Now Send Inquiry
2 Wire Conventional Photoelectric Smoke Detector for Fire Alarm (ES-5002OSD)

2 Wire Conventional Photoelectric Smoke Detector for Fire Alarm (ES-5002OSD)

US $ 3-6 / Piece FOB
10 Pieces (MOQ)
More
Types of Smoke Detectors : Photoelectric Smoke Style
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Ease Security Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2014
Chat Now Send Inquiry
Popular Wireless Burglar Alarm Outdoor PIR Smart Home Alarm Outdoor PIR Motion Detector Hw-01h

Popular Wireless Burglar Alarm Outdoor PIR Smart Home Alarm Outdoor PIR Motion Detector Hw-01h

US $ 24-28 / Piece FOB
500 Pieces (MOQ)
More
Main Products: Alarm System, Burglar Alarm, Security System, GSM Alarm System, Wireless Home Security, Car GSM Alarm, Home / Commercial Alarm, CCTV System, Detector, Surveillance Equipment
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Shenzhen Chitongda Electronic Co., Ltd.

Manufacturer/Factory,Trading Company

Guangdong, China Since 2006
Chat Now Send Inquiry
IP66 Portable Handheld Gas Detector for O2, H2s, Lel, CO2

IP66 Portable Handheld Gas Detector for O2, H2s, Lel, CO2

US $ 80-150 / Piece FOB
1 Piece (MOQ)
More
Combustible Gas Detector Model : NA-300
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Nanjing AIYI Technologies Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2017
Chat Now Send Inquiry
Infrared Motion Detector Pir Detector Flame Detector Pir Sensor Pir Motion Detector Sensor
View More

Related Searches

Infrared Remote Control Surveillance Infrared Camera Infrared Cctv Lens Cctv Waterproof Infrared Camera Infrared Cmos Camera Infrared Weatherproof Camera Security Alarm Detector Co Detector Alarm Infrared IP Camera Infrared Cctv Camera

Browse by Categories

Home > Security & Protection > Alarm & Security Systems > Alarm
1/77
TOP

Search Filter

Categories

More Less
  • Alarm
  • Probe, Sensor
  • Fire Alarm & Smoke Detector
  • Infrared Sensor
  • CCTV Camera
  • Signal Jammer
  • Sensor Switch
  • Alarm & Security System Accessories
  • Linear (Amplifiers & Comparators)
  • Photoelectric Sensor

Certification

More Less
  • CE
  • RoHS
  • FCC

Customized

More Less
  • Customized
  • Non-Customized

Gas

More Less
  • CH4
  • CO2
  • CO
  • HF
  • H2S
  • H2
  • O2
  • O₃
  • SO2
  • NH3
  • C2H4
  • NO2
  • NO
  • Cl₂

Portable

More Less
  • Non Portable
  • Portable

Type

More Less
  • Electrochemical Gas Analyzer
  • Thermal Conductivity Gas Analyzer
  • Non-Dispersive Infrared Analysis

Company Type

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

Company Location

More Less
  • Guangdong
  • Jiangsu
  • Zhejiang
  • Beijing
  • Hubei
  • Shandong
  • Fujian
  • Ningxia
  • Anhui
  • Henan
  • Sichuan
  • Shanghai
  • Jilin
  • Liaoning
  • Chongqing
  • Tianjin
  • Hunan
  • Shaanxi

Product Types

More Less
  • SecuredTrading
  • Buy Sample
Reset Done