Power Engineering 
K-JIANG
NameDescriptionContent
  • Basler Electric SBO222 Excitation Support System
  • Basler Electric SBO221 Excitation Support System
  • Basler Electric 9488800100 AVC Sensing Module
  • Basler Electric 36T865-2 BE03752001
  • Basler Electric BE1-25 BE1-25/79TR CONTROL SYNC-CHECK RECLOSING RELAY
  • Woodward DPC (P/N 5417-557 / P/N 8445-1024 / P/N 8445-1026) Direct Configuration Cable
  • Basler Electric 9488800100 AVC Sensing Module
  • Basler Electric AVC125-10 Voltage Regulator
  • Basler Electric BE3-37, BE3-51, and BE3-37/51 Ac Current Relay
  • Basler Electric AVC63-4, AVC63-4D, Voltage Regulator
  • Basler Electric MOC21XX through MOC24XX and MOC29XX Motor Operated Potentiometer
  • Basler Electric BE1-FLEX Protection, Automation, and Control System
  • Basler Electric EL 200 Minimum/Maximum Excitation Limiter
  • Basler Electric XR2002 and XR2002F PMG Voltage Regulator
  • Basler Electric DXCB-2 De-Excitation/Crowbar Module
  • Basler Electric EDM-200 Exciter Diode Monitor
  • Basler Electric CLASS 300 EQUIPMENT Electronic Manual Voltage Control MVC-300
  • Basler Electric Class 200 Equipment SSR Series Voltage Regulators
  • Basler Electric SSR 63-12NF SSR Series Voltage Regulators
  • Basler Electric Model RA-70 Microprocessor-Based Reference Adjuster
  • Beckhoff ELM3002-0235 | EtherCAT Terminal, 2-channel analog input, voltage
  • Beckhoff ELM3002-0225 | EtherCAT Terminal, 2-channel analog input, voltage
  • Beckhoff ELM3002-0205 | EtherCAT Terminal, 2-channel analog input, voltage
  • Beckhoff ELM3002-0030 | EtherCAT Terminal, 2-channel analog input, voltage
  • Beckhoff ELM3002-0000 | EtherCAT Terminal, 2-channel analog input, voltage
  • Beckhoff EL3783-0100 | EtherCAT Terminal, 3-channel analog input, multi-function
  • Beckhoff EL3783 | EtherCAT Terminal, 3-channel analog input, multi-function
  • Beckhoff EL3773 | EtherCAT Terminal, 3-channel analog input, multi-function
  • Beckhoff EL3751-0024 | EtherCAT Terminal, 1-channel analog input, temperature
  • Beckhoff EL3751-0020 | EtherCAT Terminal, 1-channel analog input, multi-function
  • Beckhoff EL3751 | EtherCAT Terminal, 1-channel analog input, multi-function
  • Beckhoff EL3742 | EtherCAT Terminal, 2-channel analog input, current
  • Beckhoff EL3702-0015 | EtherCAT Terminal, 2-channel analog input, voltage
  • Beckhoff EL3702 | EtherCAT Terminal, 2-channel analog input, voltage
  • CTI 2500S-27-1550 Slice I/O, RS232/485, 2DIO / 4UAI / 2AI (MATURE)
  • CTI 2500S-26-1550 Slice I/O, RS232/485, 8DIO / 2UAI
  • CTI 2500S-23-1550 Slice I/O, RS232/485, 4DI / 4DO / 2UAI / 2AO
  • CTI 2500-RIO-B RS485 Remote Base Controller
  • CTI 2500-RIO-A RS485 Remote Base Controller (MATURE - replaced by 2500-RIO-B)
  • CTI 2532 16-Point Form-A Relay Output Module
  • Aerotech Automation1 XL4s High-Speed, Single-Phase Linear Servo Drive
  • Aerotech Automation1 XL2e Enhanced, Compact Linear Servo Drive
  • Aerotech Automation1 iXL2e Enhanced, Compact Linear Servo Drive with Motion Controller
  • Aerotech Automation1 XL5e Enhanced, Linear Servo Drive
  • Aerotech Automation1 GI4 Laser Scan Head Controller
  • Aerotech Automation1 SI4 Stepper Interface
  • Basler Electric BE3-GPR Generator Protective Relay
  • Basler Electric BE3-47N and BE3-47N/27 Phase Balance Relay
  • Basler Electric BE3-27T, BE3-59T, and BE3-27T/59T Ac Voltage Relay
  • Basler Electric BE1-CDS240 Current Differential System
  • Basler Electric BE3-49R - 3 Inputs Temperature Relay
  • Basler Electric SCP 250 Var/Power Factor Controller
  • Beckhoff EL3681-0030 | EtherCAT Terminal, 1-channel analog input, multimeter
  • Beckhoff EL3681 | EtherCAT Terminal, 1-channel analog input, multimeter
  • Beckhoff EL3475-0200 | EtherCAT Terminal, 12-channel analog input, 4-port, multi-function
  • Beckhoff EL3475 | EtherCAT Terminal, 12-channel analog input, 4-port, multi-function
  • Beckhoff EL3453-0120 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3453-0100 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3453-0090 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3453-0030 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3453-0020 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3453 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3446-0011 | EtherCAT Terminal, 6-channel analog input, current
  • Beckhoff EL3443-0020 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3443-0013 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3443-0011 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3443-0010 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3443 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff ED3362-0100 | EtherCAT Terminal, 2-channel analog input
  • Beckhoff ED3362 | EtherCAT Terminal, 2-channel analog input, measuring bridge
  • Beckhoff ED3361-0100 | EtherCAT Terminal, 1-channel analog input
  • Beckhoff ED3361 | EtherCAT Terminal, 1-channel analog input, measuring bridge
  • Beckhoff EL3356-0090 | EtherCAT Terminal, 1-channel analog input, measuring bridge
  • Eaton generator relay EGR5000
  • Eaton Protection Features EDR-5000
  • Eaton EDR-5000 Distribution Protection Relay
  • Eaton EBR-3000/EBR-Z Eaton high impedance bus differential relay
  • Eaton Arc Flash Relay
  • Eaton BushingGard
  • Eaton Bussmann series Quik-Spec Coordination Panel (QSCP)
  • Eaton BR two-pole ground fault circuit breaker
  • Bently Nevada 3500/92 Communication Gateway
  • Eaton MTL PAC8000 8507-BI-DP BIM and 8701-CA-BI Carrier PROFIBUS DP Bus Interface Module and Carrier
  • ABB Vishay EsTa Power capacitors solutions
  • Basler Electric AEC63-7 Voltage Regulator
  • Basler Electric BE1-BPR Breaker Protection Relay
  • Beckhoff EL3314-0092 | EtherCAT Terminal, 4-channel analog input, temperature
  • Beckhoff EL3314-0090 | EtherCAT Terminal, 4-channel analog input, temperature
  • Beckhoff ED3274 | EtherCAT Terminal, 4-channel analog input, temperature, RTD, TC, push-in
  • Beckhoff EL3214-0090 | EtherCAT Terminal, 4-channel analog input, temperature
  • Beckhoff EL3202-0020 | EtherCAT Terminal, 2-channel analog input, temperature
  • Beckhoff EL3202-0030 | EtherCAT Terminal, 2-channel analog input, temperature
  • Beckhoff EL3201-0030 | EtherCAT Terminal, 1-channel analog input, temperature
  • Beckhoff EL3184 | EtherCAT Terminal, 4-channel analog input, current, 4…20 mA
  • Beckhoff EL3182 | EtherCAT Terminal, 2-channel analog input, current, 0/4…20 mA
  • Beckhoff EL3174-0090 | EtherCAT Terminal, 4-channel analog input, multi-function
  • Basler Electric SSE Shunt Static Exciter-Regulator
  • Basler Electric BE1-46N Negative Sequence Overcurrent Relay
  • INDUSTRIAL INDEXING SYSTEMS IIS MSC-850/32 SYSTEM UNIT
  • INDUSTRIAL INDEXING SYSTEMS IIS MSC-250 2½-AXIS SERVO CONTROLLER
  • SAACKE FUEL TRAINS For industrial applications
  • SAACKE se@vis 4 MORE THAN JUST A BURNER CONTROL SYSTEM
  • SAACKE CCS-LT COMPACT ALL-STEEL HOT GAS GENERATOR
  • SAACKE CCS-HT COMPACT HOT GAS GENERATOR
  • SAACKE CCS-HT VERSATILE HOT GAS GENERATOR FOR DEMANDING INDUSTRIAL PROCESSES
Current Location:

E-mail

Password

Register Forgot password?
Emerson SE4050E2C0 8-Wide I/O Interface Carrier with 8 Power Buss Plugs
❤ Add to collection

Emerson SE4050E2C0 8-Wide I/O Interface Carrier with 8 Power Buss Plugs

+86-18144100983
kongjiangauto@163.com
wind, petroleum, chemical, natural gas, Marine, mining, aviation, electronics, steel, nuclear power, electric power, coking, air separation and so on
PLC, DCS, servo, analog, Ethernet, digital, redundant module, tension system, excitation, generator management, human-machine interface, detection card, sensor, AC drive, etc
U.S.$7313.00
U.S.$5884.00
Weight:4.000KG
Quantity:
(Inventory: 5)
Buy now
Add to cart
Product parameters
  • Tell:+86-18144100983
  • email:kongjiangauto@163.com
  • Application:wind/ petroleum/ chemical/ natural gas/ Marine/ mining/ aviation/ electronics/ steel/ nuclear power/ electric power/ coking/ air separation and so on
  • Series:PLC/ DCS/ servo/ analog/ Ethernet/ digital/ redundant module/ tension system/ excitation/ generator management/ human-machine interface/ detection card/ sensor/ AC drive/ etc
Feature

Emerson SE3007 - DCS Distributed I/O Unit Module

Emerson SE3007 - DCS Distributed I/O Unit Module Brand Image    

The Emerson SE3007 is a highly advanced, robust, and versatile control device designed to meet the demanding needs of modern automation systems across various industries. Engineered with precision and built for durability, the SE3007 offers exceptional performance in power industry, petrochemical, and general automation applications. Its key technical features include a high input/output capacity, superior accuracy, and reliable operation in harsh environments.

Equipped to handle multiple input signals, the Emerson SE3007 supports a wide range of analog and digital inputs, enabling seamless integration with existing control systems. The device features a high-resolution analog output module, ensuring precise signal transmission crucial for sensitive processes. Its rugged construction guarantees durability against extreme temperatures, vibration, and electromagnetic interference, making it suitable for deployment in challenging industrial settings.

Performance-wise, the SE3007 delivers fast response times and high stability, ensuring real-time control and monitoring capabilities. Its sophisticated internal architecture minimizes noise and enhances signal integrity, which is vital for critical applications such as power management and petrochemical processing. The device also incorporates advanced diagnostic functions, allowing operators to monitor system health and prevent potential failures proactively.

In real-world scenarios, the Emerson SE3007 excels in controlling high-voltage power distribution systems, where precise regulation and real-time data are essential. It is widely used in refinery automation, where it manages complex process variables with high accuracy. In petrochemical facilities, the SE3007 ensures consistent operation of critical control loops, contributing to safety and efficiency. Its versatility extends to general automation environments, such as manufacturing plants and infrastructure projects, where reliable data acquisition and control are paramount.

Compared to other Emerson automation products like the Emerson Maxi-Maestro, Emerson PR6423/002-000 CON021, or Emerson Ovation 1P00028G01, the SE3007 stands out with its superior input/output capacity, enhanced environmental robustness, and advanced diagnostic features. While models such as the Emerson DeltaV CE4003S2B6 Analog Input Module and Emerson KJ3208X1-BA2 focus on specific input/output functions, the SE3007 offers a comprehensive solution suitable for complex and high-demand applications. Its compatibility with a range of Emerson sensors and modules, including the Emerson EPRO PR9268/301-000 Eddy Current Sensor, Emerson PR6426/010-140 Current Sensor, and Emerson KJ4001X1-NB1 High Side Output Module, ensures seamless integration within existing systems.

Alongside the Emerson PR6423/10R-030 CON021 Eddy Current Sensor or the Emerson VE4002S1T2B4 KJ3202X1-BA1 High Side Output Module, the SE3007 provides a complete automation solution that enhances operational efficiency and system reliability. Other related models like the Emerson PR6424/006-030 Proximity Sensor or the Emerson KJ2201X1-BA1 Smart Logic Solver complement its capabilities by offering additional sensing and control functionalities.

Designed for versatility and reliability, the Emerson SE3007 is an ideal choice for engineers seeking a high-performance control device that ensures precision, durability, and seamless integration in power industry, petrochemical, and general automation applications. Its advanced features and compatibility with a wide range of Emerson automation products make it a valuable asset for modern industrial environments, supporting efficient and safe operations in even the most demanding conditions.

  • Woodward DPC (P/N 5417-557 / P/N 8445-1024 / P/N 8445-1026) Direct Configuration Cable
  • Basler Electric 9488800100 AVC Sensing Module
  • Basler Electric AVC125-10 Voltage Regulator
  • Basler Electric BE3-37, BE3-51, and BE3-37/51 Ac Current Relay
  • Basler Electric AVC63-4, AVC63-4D, Voltage Regulator
  • Basler Electric MOC21XX through MOC24XX and MOC29XX Motor Operated Potentiometer
  • Basler Electric BE1-FLEX Protection, Automation, and Control System
  • Basler Electric EL 200 Minimum/Maximum Excitation Limiter
  • Basler Electric XR2002 and XR2002F PMG Voltage Regulator
  • Basler Electric DXCB-2 De-Excitation/Crowbar Module
  • Basler Electric EDM-200 Exciter Diode Monitor
  • Basler Electric CLASS 300 EQUIPMENT Electronic Manual Voltage Control MVC-300
  • Basler Electric Class 200 Equipment SSR Series Voltage Regulators
  • Basler Electric SSR 63-12NF SSR Series Voltage Regulators
  • Basler Electric Model RA-70 Microprocessor-Based Reference Adjuster
  • Beckhoff ELM3002-0235 | EtherCAT Terminal, 2-channel analog input, voltage
  • Beckhoff ELM3002-0225 | EtherCAT Terminal, 2-channel analog input, voltage
  • Beckhoff ELM3002-0205 | EtherCAT Terminal, 2-channel analog input, voltage
  • Beckhoff ELM3002-0030 | EtherCAT Terminal, 2-channel analog input, voltage
  • Beckhoff ELM3002-0000 | EtherCAT Terminal, 2-channel analog input, voltage
  • Beckhoff EL3783-0100 | EtherCAT Terminal, 3-channel analog input, multi-function
  • Beckhoff EL3783 | EtherCAT Terminal, 3-channel analog input, multi-function
  • Beckhoff EL3773 | EtherCAT Terminal, 3-channel analog input, multi-function
  • Beckhoff EL3751-0024 | EtherCAT Terminal, 1-channel analog input, temperature
  • Beckhoff EL3751-0020 | EtherCAT Terminal, 1-channel analog input, multi-function
  • Beckhoff EL3751 | EtherCAT Terminal, 1-channel analog input, multi-function
  • Beckhoff EL3742 | EtherCAT Terminal, 2-channel analog input, current
  • Beckhoff EL3702-0015 | EtherCAT Terminal, 2-channel analog input, voltage
  • Beckhoff EL3702 | EtherCAT Terminal, 2-channel analog input, voltage
  • CTI 2500S-27-1550 Slice I/O, RS232/485, 2DIO / 4UAI / 2AI (MATURE)
  • CTI 2500S-26-1550 Slice I/O, RS232/485, 8DIO / 2UAI
  • CTI 2500S-23-1550 Slice I/O, RS232/485, 4DI / 4DO / 2UAI / 2AO
  • CTI 2500-RIO-B RS485 Remote Base Controller
  • CTI 2500-RIO-A RS485 Remote Base Controller (MATURE - replaced by 2500-RIO-B)
  • CTI 2532 16-Point Form-A Relay Output Module
  • Aerotech Automation1 XL4s High-Speed, Single-Phase Linear Servo Drive
  • Aerotech Automation1 XL2e Enhanced, Compact Linear Servo Drive
  • Aerotech Automation1 iXL2e Enhanced, Compact Linear Servo Drive with Motion Controller
  • Aerotech Automation1 XL5e Enhanced, Linear Servo Drive
  • Aerotech Automation1 GI4 Laser Scan Head Controller
  • Aerotech Automation1 SI4 Stepper Interface
  • Basler Electric BE3-GPR Generator Protective Relay
  • Basler Electric BE3-47N and BE3-47N/27 Phase Balance Relay
  • Basler Electric BE3-27T, BE3-59T, and BE3-27T/59T Ac Voltage Relay
  • Basler Electric BE1-CDS240 Current Differential System
  • Basler Electric BE3-49R - 3 Inputs Temperature Relay
  • Basler Electric SCP 250 Var/Power Factor Controller
  • Beckhoff EL3681-0030 | EtherCAT Terminal, 1-channel analog input, multimeter
  • Beckhoff EL3681 | EtherCAT Terminal, 1-channel analog input, multimeter
  • Beckhoff EL3475-0200 | EtherCAT Terminal, 12-channel analog input, 4-port, multi-function
  • Beckhoff EL3475 | EtherCAT Terminal, 12-channel analog input, 4-port, multi-function
  • Beckhoff EL3453-0120 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3453-0100 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3453-0090 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3453-0030 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3453-0020 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3453 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3446-0011 | EtherCAT Terminal, 6-channel analog input, current
  • Beckhoff EL3443-0020 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3443-0013 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3443-0011 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3443-0010 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff EL3443 | EtherCAT Terminal, 3-channel analog input, power measurement
  • Beckhoff ED3362-0100 | EtherCAT Terminal, 2-channel analog input
  • Beckhoff ED3362 | EtherCAT Terminal, 2-channel analog input, measuring bridge
  • Beckhoff ED3361-0100 | EtherCAT Terminal, 1-channel analog input
  • Beckhoff ED3361 | EtherCAT Terminal, 1-channel analog input, measuring bridge
  • Beckhoff EL3356-0090 | EtherCAT Terminal, 1-channel analog input, measuring bridge
  • Eaton generator relay EGR5000
  • Eaton Protection Features EDR-5000
  • Eaton EDR-5000 Distribution Protection Relay
  • Eaton EBR-3000/EBR-Z Eaton high impedance bus differential relay
  • Eaton Arc Flash Relay
  • Eaton BushingGard
  • Eaton Bussmann series Quik-Spec Coordination Panel (QSCP)
  • Eaton BR two-pole ground fault circuit breaker
  • Bently Nevada 3500/92 Communication Gateway
  • Eaton MTL PAC8000 8507-BI-DP BIM and 8701-CA-BI Carrier PROFIBUS DP Bus Interface Module and Carrier
  • ABB Vishay EsTa Power capacitors solutions
  • Basler Electric AEC63-7 Voltage Regulator
  • Basler Electric BE1-BPR Breaker Protection Relay
  • Beckhoff EL3314-0092 | EtherCAT Terminal, 4-channel analog input, temperature
  • Beckhoff EL3314-0090 | EtherCAT Terminal, 4-channel analog input, temperature
  • Beckhoff ED3274 | EtherCAT Terminal, 4-channel analog input, temperature, RTD, TC, push-in
  • Beckhoff EL3214-0090 | EtherCAT Terminal, 4-channel analog input, temperature
  • Beckhoff EL3202-0020 | EtherCAT Terminal, 2-channel analog input, temperature
  • Beckhoff EL3202-0030 | EtherCAT Terminal, 2-channel analog input, temperature
  • Beckhoff EL3201-0030 | EtherCAT Terminal, 1-channel analog input, temperature
  • Beckhoff EL3184 | EtherCAT Terminal, 4-channel analog input, current, 4…20 mA
  • Beckhoff EL3182 | EtherCAT Terminal, 2-channel analog input, current, 0/4…20 mA
  • Beckhoff EL3174-0090 | EtherCAT Terminal, 4-channel analog input, multi-function
  • Basler Electric SSE Shunt Static Exciter-Regulator
  • Basler Electric BE1-46N Negative Sequence Overcurrent Relay
  • INDUSTRIAL INDEXING SYSTEMS IIS MSC-850/32 SYSTEM UNIT
  • INDUSTRIAL INDEXING SYSTEMS IIS MSC-250 2½-AXIS SERVO CONTROLLER
  • SAACKE FUEL TRAINS For industrial applications
  • SAACKE se@vis 4 MORE THAN JUST A BURNER CONTROL SYSTEM
  • SAACKE CCS-LT COMPACT ALL-STEEL HOT GAS GENERATOR
  • SAACKE CCS-HT COMPACT HOT GAS GENERATOR
  • SAACKE CCS-HT VERSATILE HOT GAS GENERATOR FOR DEMANDING INDUSTRIAL PROCESSES
  • SAACKE TEMINOX THE ULTRA-LOW-NOX BURNER FOR YOUR PROCESS HEAT
  • SAACKE SWIRL BURNER SSB
  • SAACKE ROTONOX THE NEW ROTARY ATOMIZER FOR MAXIMUM EFFICIENCY
  • Basler Electric BE1-67N Ground Directional Overcurrent Relay
  • Basler Electric BE1-87G Variable Percentage Differential Relay
  • Basler Electric IFM-150 Interface Firing Module
  • Basler Electric BE1-87T Transformer Differential Relay
  • Aerotech Automation1 XI4 Servo Controller
  • Aerotech Automation1 iXI4 Motion & Servo Controller
  • Aerotech Automation1 XC6e Enhanced, High-Power PWM Servo Drive
  • Aerotech PWM Servo Motor Drives Automation1 XC2
  • Aerotech Automation1 XC4 PWM Servo Drive
  • Aerotech Enhanced PWM Servo Drive Automation1 XC4e
  • Aerotech Automation1 XR3 Multi-Axis Servo Drive Rack
  • Aerotech Automation1 iXR3 Multi-Axis Servo Drive Rack with Motion Controller
  • Aerotech Automation1 iXC2 Compact PWM Servo Drive with Motion Controller
  • Aerotech Automation1 iXC4 Drive-Based Motion Controller
  • Aerotech Automation1 iXC4e Enhanced, PWM Servo Drive with Motion Controller
  • Aerotech Automation1 HyperWire Motion Control Communication Bus
  • Aerotech Dynamic Controls Toolbox Advanced Controller-Level Algorithms
  • Aerotech EPICS & TANGO Drivers for Distributed Control Systems
  • ICS TRIPLEX T8451 Trusted TMR 24 Vdc Digital Output Module – 40 Channel
  • Beckhoff EL3124-0090 | EtherCAT Terminal, 4-channel analog input, current, 4…20 mA
  • Beckhoff EL4374 | EtherCAT Terminal, 2-channel analog input + 2-channel analog output
  • Beckhoff ED3174 | EtherCAT Terminal, 4-channel analog input, multi-function
  • Basler Electric SR4A, Retrofit Voltage Regulator
  • Basler Electric SR9A, Retrofit Voltage Regulator
  • Basler Electric SR8A, Retrofit Voltage Regulator
How to install and debug this product? Matters needing attention
Where can I download the manual and programming software?
Is it in stock or need to be ordered?
Can you provide technical service?
Where can I order this series?
Do you have product selection list and pre-sale service?