Category Archives: nsee

NSEE_12_24V_280KG_Double_Electric_Magnetic_Gate_Lock_Door_Access_Latch_LED_Light_01_db

NSEE 12/24V 280KG Double Electric Magnetic Gate Lock Door Access Latch LED Light

NSEE 12/24V 280KG Double Electric Magnetic Gate Lock Door Access Latch LED Light
NSEE 12/24V 280KG Double Electric Magnetic Gate Lock Door Access Latch LED Light
NSEE 12/24V 280KG Double Electric Magnetic Gate Lock Door Access Latch LED Light

NSEE 12/24V 280KG Double Electric Magnetic Gate Lock Door Access Latch LED Light
Holding Force: 280KG (600LBS). Application: Wooden Door, Glass Door. Metal Door, Fire Proof Door. Type: Power to lock, Power lock. Low energy consumption (DC 12V). Silent and continuous duty operation. Applicable to wide variety of swing and sliding door. Interface seamlessly to controller readers. Instantaneous release in the event of emergency. This item is in the category “Home & Garden\Home Improvement\Building & Hardware\Garage Doors & Openers\Opener Systems”. The seller is “gate-hardware-and-equipments” and is located in this country: US. This item can be shipped worldwide.
  • Model: 280KG-DD
  • Power Source: Electric
  • Type: Double Electric Magnetic Gate Lock Door Access
  • MPN: 280KG-DD
  • SKU: 280KG-DD
  • Package Quantity: 1
  • Item: Magnetic Gate Lock
  • Brand: NSEE
  • Application: Commercial, Resindential
  • Operation: Withstands Up to 600 lbs of Force.
  • Voltage: 12V, 24V
  • UPC: 376014910315

NSEE 12/24V 280KG Double Electric Magnetic Gate Lock Door Access Latch LED Light
NSEE_Fingerprint_Electric_Glass_Door_Gate_Lock_RFID_Reader_Touch_Keypad_Pincode_01_lhb

NSEE Fingerprint Electric Glass Door Gate Lock RFID Reader Touch Keypad Pincode

NSEE Fingerprint Electric Glass Door Gate Lock RFID Reader Touch Keypad Pincode
NSEE Fingerprint Electric Glass Door Gate Lock RFID Reader Touch Keypad Pincode
NSEE Fingerprint Electric Glass Door Gate Lock RFID Reader Touch Keypad Pincode

NSEE Fingerprint Electric Glass Door Gate Lock RFID Reader Touch Keypad Pincode
NSEE Fingerprint Electric Glass Door Gate Lock RFID Reader Touch Keypad Pincode. Fingerprint Glass door lock 1. Finger Capacity: 1000 2. User Capacity: 3000 3. LCD: 1.77 inch TFT color screen 4. Work with 4pcs 1.5V AA alkaline battery 5. Optical sensor (Support: Fingerprint+RFID+Pincode) Support USB to download attendance record. Multiple unlock mode: Fingerprint , Password, Card and Combination Mode. High sensitive full touch keypad with backlight, easy use even in the darkness. Easy operation to the humanity and clear voice guidance. Support DIY installation just with a screw driver, no need any take hole. Optional Remote control function. Doorbell built in offers very convenience for the visitor. Powered by 4pcs AA Battery and with low battery alarm. Support external emergency battery input. The item “NSEE Fingerprint Electric Glass Door Gate Lock RFID Reader Touch Keypad Pincode” is in sale since Thursday, August 27, 2020. This item is in the category “Home & Garden\Home Improvement\Building & Hardware\Garage Doors & Openers\Opener Systems”. The seller is “gate-hardware-and-equipments” and is located in Opa-Locka, Florida. This item can be shipped worldwide.
  • Model: iGlass108
  • Type: Glass Door Gate Lock RFID Reader Touch Keypad
  • MPN: iGlass108
  • Brand: NSEE
  • Application: Commercial

NSEE Fingerprint Electric Glass Door Gate Lock RFID Reader Touch Keypad Pincode
NSEE_C07_4_12V_200KG_500LB_Dual_Operator_Swing_Gate_Door_Opener_Solar_Compatible_01_dwza

NSEE C07-4 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible

NSEE C07-4 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible

NSEE C07-4 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible
Soft start slow stop, automatic close, obstacle detection by automatic reversng. Interface for GSM, infrared sensor, alarm light, wall button. 12V Back up battery pins is available. Works with solar panel. Shell material is metal. Separate control unit, easy to install. Piston-style – For 2-panel gates. This piston-style drive is perfectly suited to large or heavy gates made of any material, and is the ideal solution to simplify your day-to-day life while making your property more secure. 2 x 12 VDC electric telescopic actuators equipped with a worm drive system, with mounting brackets. 1 electronic control box with simple programming of the opening and closing cycle. Mounting and fastening brackets. 2 x 4-button 433.92 MHz remote control units. Compatible with all types of gate (PVC, Aluminum, Openwork wood or steel). Dimensions and weight of the gate: 3m/200kg per panel. Inwards opening, maximum angle: 120°. Outward opening optional (mounting kit available). Safety: stop on encountering obstacle + reversal of direction. Manually override the motors in the event of a power cut. Automatic (after time delay) or semi-automatic gate closing. Side gate mode (suitable for a single-panel gate). 2 pcs Remote Control. Pair of Photocell Sensors. The item “NSEE C07-4 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible” is in sale since Sunday, July 28, 2019. This item is in the category “Home & Garden\Home Improvement\Building & Hardware\Garage Doors & Openers\Opener Systems”. The seller is “gate-hardware-and-equipments” and is located in Opa-Locka, Florida. This item can be shipped worldwide.
  • Model: C07-4
  • Maximum Door Weight: 200KG/500LB
  • MPN: C07-4
  • Maximum Gate Weight: 200KG/500LB
  • Brand: NSEE
  • Application: Commercial
  • Power Source: Electric, Solar
  • Type: Dual Operator Swing Gate Door Opener Solar Capable
  • Voltage: 12 V

NSEE C07-4 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible
NSEE_C07_2_12V_200KG_500LB_Dual_Operator_Swing_Gate_Door_Opener_Solar_Compatible_01_or

NSEE C07-2 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible

NSEE C07-2 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible

NSEE C07-2 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible
Soft start slow stop, automatic close, obstacle detection by automatic reversng. Interface for GSM, infrared sensor, alarm light, wall button. 12V Back up battery pins is available. Works with solar panel. Shell material is metal. Separate control unit, easy to install. Piston-style – For 2-panel gates. This piston-style drive is perfectly suited to large or heavy gates made of any material, and is the ideal solution to simplify your day-to-day life while making your property more secure. 2 x 12 VDC electric telescopic actuators equipped with a worm drive system, with mounting brackets. 1 electronic control box with simple programming of the opening and closing cycle. Mounting and fastening brackets. 2 x 4-button 433.92 MHz remote control units. Compatible with all types of gate (PVC, Aluminum, Openwork wood or steel). Dimensions and weight of the gate: 3m/200kg per panel. Inwards opening, maximum angle: 120°. Outward opening optional (mounting kit available). Safety: stop on encountering obstacle + reversal of direction. Manually override the motors in the event of a power cut. Automatic (after time delay) or semi-automatic gate closing. Side gate mode (suitable for a single-panel gate). 2 pcs Remote Control. 1 pc Strobe Lamp. The item “NSEE C07-2 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible” is in sale since Friday, July 26, 2019. This item is in the category “Home & Garden\Home Improvement\Building & Hardware\Garage Doors & Openers\Opener Systems”. The seller is “gate-hardware-and-equipments” and is located in Opa-Locka, Florida. This item can be shipped worldwide.
  • Model: C07-2
  • Maximum Door Weight: 200KG/500LB
  • MPN: C07-2
  • Maximum Gate Weight: 200KG/500LB
  • Brand: NSEE
  • Application: Commercial
  • Power Source: Electric, Solar
  • Type: Dual Operator Swing Gate Door Opener Solar Capable
  • Voltage: 12 V

NSEE C07-2 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible
NSEE_C07_5_12V_200KG_500LB_Dual_Operator_Swing_Gate_Door_Opener_Solar_Compatible_01_wcwz

NSEE C07-5 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible

NSEE C07-5 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible

NSEE C07-5 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible
Soft start slow stop, automatic close, obstacle detection by automatic reversng. Interface for GSM, infrared sensor, alarm light, wall button. 12V Back up battery pins is available. Works with solar panel. Shell material is metal. Separate control unit, easy to install. Piston-style – For 2-panel gates. This piston-style drive is perfectly suited to large or heavy gates made of any material, and is the ideal solution to simplify your day-to-day life while making your property more secure. 2 x 12 VDC electric telescopic actuators equipped with a worm drive system, with mounting brackets. 1 electronic control box with simple programming of the opening and closing cycle. Mounting and fastening brackets. 2 x 4-button 433.92 MHz remote control units. Compatible with all types of gate (PVC, Aluminum, Openwork wood or steel). Dimensions and weight of the gate: 3m/200kg per panel. Inwards opening, maximum angle: 120°. Outward opening optional (mounting kit available). Safety: stop on encountering obstacle + reversal of direction. Manually override the motors in the event of a power cut. Automatic (after time delay) or semi-automatic gate closing. Side gate mode (suitable for a single-panel gate). 4 pcs Remote Control. 1pc Strobe Lamp. 1pc Push Button. Pair of Photocell Sensors. The item “NSEE C07-5 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible” is in sale since Sunday, July 28, 2019. This item is in the category “Home & Garden\Home Improvement\Building & Hardware\Garage Doors & Openers\Opener Systems”. The seller is “gate-hardware-and-equipments” and is located in Opa-Locka, Florida. This item can be shipped worldwide.
  • Model: C07-5
  • Maximum Door Weight: 200KG/500LB
  • MPN: C07-5
  • Maximum Gate Weight: 200KG/500LB
  • Brand: NSEE
  • Application: Commercial
  • Power Source: Electric, Solar
  • Type: Dual Operator Swing Gate Door Opener Solar Capable
  • Voltage: 12 V

NSEE C07-5 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible
NSEE_PKM_C02_3_320KG_725LBS_Dual_Operator_Fence_Swing_Gate_Door_Double_Opener_01_vk

NSEE PKM-C02-3 320KG/725LBS Dual Operator Fence Swing Gate Door Double Opener

NSEE PKM-C02-3 320KG/725LBS Dual Operator Fence Swing Gate Door Double Opener
NSEE PKM-C02-3 320KG/725LBS Dual Operator Fence Swing Gate Door Double Opener

NSEE PKM-C02-3 320KG/725LBS Dual Operator Fence Swing Gate Door Double Opener
Worm gear provides durability and silence in motor operation. Clutch device for power failure, use a special key release clutch, operate the gate manually. Stop working when gate meets obstacle. Soft start and soft stop, avoid some accidents. Copper motor and gear worm for stable performance and longer working life. Adjustable opening/closing interval between master and slave gate. 24VDC Swing Gate Opener can work with solar power system and back up battery 9. Controller can connect flashing light, and photocell, and back up battery, and keypad and so on. Controlling single or double-leaf motor is optional. Can adjust open and close door time. 24VDC back-up battery can be input. This is use large controller, our standard controller is small size. High speed operate can be adjustment. Set extra remote control is easily, up to 30pcs remote control. 2 x Heavy Duty DC motor that are pre-wired with motor cables. 2 x Override spanners. 2 x Post mounting bracket. 2 x Gate mounting bracket. 1 x Rubber Gate Stop. 1 x Instruction manual. The item “NSEE PKM-C02-3 320KG/725LBS Dual Operator Fence Swing Gate Door Double Opener” is in sale since Sunday, March 12, 2017. This item is in the category “Home & Garden\Home Improvement\Building & Hardware\Garage Doors & Openers\Opener Systems”. The seller is “gate-hardware-and-equipments” and is located in Opa-Locka, Florida. This item can be shipped worldwide.
  • Horse Power: 320KG/725LBS
  • Model: PKM-C02
  • Maximum Door Weight: 320KG/725LBS
  • MPN: PKM-C02
  • Maximum Gate Weight: 320KG/725LBS
  • Maximum Weight: 320KG / 725LB per leaf/arm
  • Portection Class: PKM-C02
  • Kit: Kit 3
  • Brand: NSEE
  • Application: Commercial
  • Power Source: Electric
  • Type: Dual Operator Fence Swing Gate Door Double Opener

NSEE PKM-C02-3 320KG/725LBS Dual Operator Fence Swing Gate Door Double Opener
NSEE_C07_6_12V_200KG_500LB_Dual_Operator_Swing_Gate_Door_Opener_Solar_Compatible_01_tt

NSEE C07-6 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible

NSEE C07-6 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible

NSEE C07-6 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible
Soft start slow stop, automatic close, obstacle detection by automatic reversng. Interface for GSM, infrared sensor, alarm light, wall button. 12V Back up battery pins is available. Works with solar panel. Shell material is metal. Separate control unit, easy to install. Piston-style – For 2-panel gates. This piston-style drive is perfectly suited to large or heavy gates made of any material, and is the ideal solution to simplify your day-to-day life while making your property more secure. 2 x 12 VDC electric telescopic actuators equipped with a worm drive system, with mounting brackets. 1 electronic control box with simple programming of the opening and closing cycle. Mounting and fastening brackets. 2 x 4-button 433.92 MHz remote control units. Compatible with all types of gate (PVC, Aluminum, Openwork wood or steel). Dimensions and weight of the gate: 3m/200kg per panel. Inwards opening, maximum angle: 120°. Outward opening optional (mounting kit available). Safety: stop on encountering obstacle + reversal of direction. Manually override the motors in the event of a power cut. Automatic (after time delay) or semi-automatic gate closing. Side gate mode (suitable for a single-panel gate). 4 pcs Remote Control. 1 pc Strobe Lamp. 1 pc Push Button. 1 pc Wireless Keypad. Pair of Photocell Sensors. The item “NSEE C07-6 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible” is in sale since Sunday, July 28, 2019. This item is in the category “Home & Garden\Home Improvement\Building & Hardware\Garage Doors & Openers\Opener Systems”. The seller is “gate-hardware-and-equipments” and is located in Opa-Locka, Florida. This item can be shipped worldwide.
  • Model: C07-6
  • Maximum Door Weight: 200KG/500LB
  • MPN: C07-6
  • Maximum Gate Weight: 200KG/500LB
  • Brand: NSEE
  • Application: Commercial
  • Power Source: Electric, Solar
  • Type: Dual Operator Swing Gate Door Opener Solar Capable
  • Voltage: 12 V

NSEE C07-6 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible
NSEE_C07_7_12V_200KG_500LB_Dual_Operator_Swing_Gate_Door_Opener_Solar_Compatible_01_sa

NSEE C07-7 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible

NSEE C07-7 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible

NSEE C07-7 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible
Soft start slow stop, automatic close, obstacle detection by automatic reversng. Interface for GSM, infrared sensor, alarm light, wall button. 12V Back up battery pins is available. Works with solar panel. Shell material is metal. Separate control unit, easy to install. Piston-style – For 2-panel gates. This piston-style drive is perfectly suited to large or heavy gates made of any material, and is the ideal solution to simplify your day-to-day life while making your property more secure. 2 x 12 VDC electric telescopic actuators equipped with a worm drive system, with mounting brackets. 1 electronic control box with simple programming of the opening and closing cycle. Mounting and fastening brackets. 2 x 4-button 433.92 MHz remote control units. Compatible with all types of gate (PVC, Aluminum, Openwork wood or steel). Dimensions and weight of the gate: 3m/200kg per panel. Inwards opening, maximum angle: 120°. Outward opening optional (mounting kit available). Safety: stop on encountering obstacle + reversal of direction. Manually override the motors in the event of a power cut. Automatic (after time delay) or semi-automatic gate closing. Side gate mode (suitable for a single-panel gate). 4 pcs Remote Control. 1 pc Strobe Lamp. 1 pc Push Button. 1 pc Wireless Keypad. 1 pc GSM Opener. Pair of Photocell Sensors. The item “NSEE C07-7 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible” is in sale since Sunday, July 28, 2019. This item is in the category “Home & Garden\Home Improvement\Building & Hardware\Garage Doors & Openers\Opener Systems”. The seller is “gate-hardware-and-equipments” and is located in Opa-Locka, Florida. This item can be shipped worldwide.
  • Model: C07-7
  • Maximum Door Weight: 200KG/500LB
  • MPN: C07-7
  • Maximum Gate Weight: 200KG/500LB
  • Brand: NSEE
  • Application: Commercial
  • Power Source: Electric, Solar
  • Type: Dual Operator Swing Gate Door Opener Solar Capable
  • Voltage: 12 V

NSEE C07-7 12V 200KG/500LB Dual Operator Swing Gate Door Opener Solar Compatible
NSEE_PK_C55_300KG_700LB_Residential_Dual_Operator_Double_Swing_Gate_Door_Opener_01_uo

NSEE PK-C55 300KG/700LB Residential Dual Operator Double Swing Gate Door Opener

NSEE PK-C55 300KG/700LB Residential Dual Operator Double Swing Gate Door Opener
NSEE PK-C55 300KG/700LB Residential Dual Operator Double Swing Gate Door Opener
NSEE PK-C55 300KG/700LB Residential Dual Operator Double Swing Gate Door Opener
NSEE PK-C55 300KG/700LB Residential Dual Operator Double Swing Gate Door Opener

NSEE PK-C55 300KG/700LB Residential Dual Operator Double Swing Gate Door Opener
Input voltage: 110V or 220V (customer choice can leave us a message). Motor’s power: 140W / DC24V. Rod’s running speed: 2.4cm/s. Safety clutch: Electronic current sensing. Rod’s max travel: 300mm/400mm. Backup battery: 12V /(5.2 or 7.0AH). Safety device: Infrared sensor (optional). Remote controller: UHF Digital PWM type. Main supply: AC110V/220V, 60Hz/50Hz. Temperature: -20 degree to +55 degree. Dps device: Electronic timing tracker. Max single-leaf length: 2.5m/3.5m. Max single-leaf weight: 300KG/700LB. Worm gear provides durability and silence in motor operation. Clutch device for power failure, use a special key release clutch, operate the gate manually. Stop working when gate meets obstacle. Soft start and soft stop, avoid some accidents. Copper motor and gear worm for stable performance and longer working life. Adjustable opening/closing interval between master and slave gate. 24VDC Swing Gate Opener can work with solar power system and back up battery 9. Soft start slow stop, automatic close, obstacle detection by automatic revering. Interface for GSM, infrared sensor, alarm light, wall button. Back up battery available. Works with solar panel. Shell material is aluminum, arm is stainless steel. Separate control unit, easy to install. 2 x Stainless Steel Arms. 2 x Remote Controllers. 1 x Control Box. 1 x Control Board. 2 x Allen Manual Release Key. 2 x Gate brackets. 2 x Post brackets. 1 x User manua l. The item “NSEE PK-C55 300KG/700LB Residential Dual Operator Double Swing Gate Door Opener” is in sale since Saturday, March 4, 2017. This item is in the category “Home & Garden\Home Improvement\Building & Hardware\Garage Doors & Openers\Opener Systems”. The seller is “gate-hardware-and-equipments” and is located in Opa-Locka, Florida. This item can be shipped worldwide.
  • Horse Power: 300KG/700LBS
  • Model: PK-C55
  • Maximum Door Weight: 300KG/700LBS
  • MPN: PK-C55
  • Maximum Gate Weight: 300KG/700LBS
  • Limit Switch: Without
  • Safety Device: Infrared Sensor (Optional)
  • Safety Clutch: Electronic Current Sensing
  • Brand: NSEE
  • Application: Commercial
  • Motor Power: DC 24V / 140W
  • Gearbox: Worm Gear
  • Portection Class: IP54
  • Power Source: Electric
  • Remote Controller Range: 30 meters (100 feets)
  • Driving Method: Screw Driven Piston Type
  • Material: Stainless Steel
  • Power Supply / Main Voltage: AC 110V or 220V (Customer Choice)
  • Type: Dual Operator Double Swing Gate Door Opener

NSEE PK-C55 300KG/700LB Residential Dual Operator Double Swing Gate Door Opener
NSEE_PK400AC_2_800KG_1800LBS_Opener_Dual_Articulated_Swing_Gate_Door_Operator_01_ehmu

NSEE PK400AC-2 800KG/1800LBS Opener Dual Articulated Swing Gate Door Operator

NSEE PK400AC-2 800KG/1800LBS Opener Dual Articulated Swing Gate Door Operator
NSEE PK400AC-2 800KG/1800LBS Opener Dual Articulated Swing Gate Door Operator
NSEE PK400AC-2 800KG/1800LBS Opener Dual Articulated Swing Gate Door Operator
NSEE PK400AC-2 800KG/1800LBS Opener Dual Articulated Swing Gate Door Operator
NSEE PK400AC-2 800KG/1800LBS Opener Dual Articulated Swing Gate Door Operator
NSEE PK400AC-2 800KG/1800LBS Opener Dual Articulated Swing Gate Door Operator
NSEE PK400AC-2 800KG/1800LBS Opener Dual Articulated Swing Gate Door Operator

NSEE PK400AC-2 800KG/1800LBS Opener Dual Articulated Swing Gate Door Operator
Articulated Swing Gate Opener is designed for residential/commercial applications. Stay warm and dry in your vehicle. This Swing Opener will handle dual swinging gates. Handles each gates up to 2.5m Long and 400KG PER LEARF; there is soft start, soft stop function, emergency release key in case of power failure. Suitable for pull to open or push to open without any extra accessory parts. Easy installation and low maintenance. Soft start slow stop, automatic close, obstacle detection by automatic reversng. Interface for GSM, infrared sensor, alarm light, wall button. Separate control unit, easy to install. Power saving mode, remote control automatic learning. Motor working time is adjustable. 10 seconds per 90 (approx). Single – leaf weight. 400 kg per leaf. Single – leaf length. 110V, 220V , 60 Hz / 50 Hz. 20 + 50 centi degree. Kit Includes: 1 Articulated Arms (2 PCS) 2 Installation Hardware 3 Remote Control (4 PCS) 4 Manual. For Voltage we can send 110V or 220V (Leave us a message with the voltage you like to get or we will send it accordingly to your region). The item “NSEE PK400AC-2 800KG/1800LBS Opener Dual Articulated Swing Gate Door Operator” is in sale since Friday, November 17, 2017. This item is in the category “Home & Garden\Home Improvement\Building & Hardware\Garage Doors & Openers\Opener Systems”. The seller is “gate-hardware-and-equipments” and is located in Opa-Locka, Florida. This item can be shipped worldwide.
  • Model: PK400AC Kit 2
  • Maximum Door Weight: 800KG/1800LBS
  • MPN: PK400AC Kit 2
  • Maximum Gate Weight: 800KG/1800LBS
  • Motor Loading Weight: 1800 lbs (800 kgs) per leaf
  • Brand: NSEE
  • Application: Commercial
  • Power Source: Electric
  • Type: Swing Gate Door Opener Automatic Operator
  • Voltage: 110V or 220V

NSEE PK400AC-2 800KG/1800LBS Opener Dual Articulated Swing Gate Door Operator