Skip to content

980-202-0882 [email protected]

2.5-Year Warranty Free Shipping Same-Day Shipping Charlotte, NC

Get a Quote

2.5-Year Warranty · Free Shipping · Same-Day Shipping 980-202-0882 · Charlotte, NC

PLC. HMI. Direct.

Control & I/O

Controllers I/O Modules HMI / PanelView Networking

Power & Motion

Drives & Motion Motor Control Power Supplies Relays

Protection & Safety

Safety Circuit Protection Pilot Devices Sensors

Wiring & Terminals

Terminal Blocks Connectivity Cables Accessories

View All Allen-Bradley

Control & I/O

Controllers I/O Modules Networking

Power & Interface

Drives HMI Panels

View All Siemens

Controllers / PLCs Drives & Motion HMI / Operator Panels I/O Modules Safety Sensors Circuit Protection Pilot Devices Terminal Blocks Connectivity Cables Motor Control Power Supplies Networking Accessories

Browse All Products

Planning & Getting Started 2 guides Drives & VFDs 5 guides Controllers 9 guides Compact 5000 I/O 11 guides POINT I/O 4 guides Networking 1 guide HMI 2 guides Siemens 7 guides

Browse All 41 Guides

Free Conversion Calculators

PLC-5 → ControlLogix Calculator SLC 500 → ControlLogix Calculator PLC-5 Migration Guide (Full) SLC 500 Migration Guide (Full)

Automation Consulting Plant Automation Guide #Hashtag

Get Help

Request a Quote Contact Us Emergency Orders Sell Your Surplus

Policies & Info

2.5-Year Warranty Returns & RMA Shipping Policy FAQ About PLC Exchange

Get Help Now

Request a Quote / RFQ

Home / Shop / Allen-Bradley / Field Devices

Field Devices

Field devices such as IO sensors, photoeyes, etc.

Shop by Brand

Allen-Bradley38652
- Accessories21
- Circuit Protection3578
- Communication Modules7
- Connectivity Cables4494
- Controllers213
- ControlLogix345
- Drive Accessories4
- Drives13
- Drives & Motion1996
- Field Devices1
- Field IO20
- HMI43
- HMI / SCADA1
- I/O Modules126
- IO Cards/Accessories10
- Motor Control7360
- Networking129
- Panel Hardware1
- Pilot Devices9991
- Power Supplies329
- Relays2439
- Safety3046
- Sensors978
- Terminal Blocks3286
Siemens52
Phoenix Contact2
E-Services2

Shop by Type

HMI / SCADA18
Safety6576
Drives & Motion5776
Circuit Protection7798
Terminal Blocks4338
Controllers / PLCs701
Sensors2679
HMI Visualization352
Pilot Devices23312
I/O Modules834
Connectivity Cables10874

Availability

In Stock Only

Price Range

–

Showing the single result

Out of Stock

872C-MH4NP12-D4-N
Allen-Bradley 872C-MH4NP12-D4 Proximity Sensor

$40.00

Request Quote

PLC Exchange

6816 April Lane
Charlotte, NC 28215

+1 (980) 202-0882
[email protected]

Mon–Sat 9am–5pm
Sun Closed

Shop

Controllers / PLCs
Drives & Motion
I/O Modules
HMI / Operator Panels
Safety
Sensors

Request a Quote →

Support

Contact Us
Warranty Information
Shipping Policy
Return Policy
Terms and Conditions

GUARANTEED SAFE CHECKOUT

Buy With Confidence

Industry Leading 2.5 year Warranty
30-day return policy
Inventory stored and shipped from Charlotte, NC
Direct support by phone, email, and live chat

Knowledge Base

How-to Guides
Sell Your Equipment

© 2026 PLC Exchange All Rights Reserved.

PLC Exchange is an independent supplier of industrial automation equipment and is not an authorized distributor for Rockwell Automation. Allen-Bradley is a trademark of Rockwell Automation, Inc.

Knowledge Center

41 Guides

View All Guides

No guides match your search.

Buyer's Guide Beginner

How to Choose a PLC Parts Supplier

Sourcing Warranty Procurement

Planning Guide Beginner

How to Start Automating Your Plant

Planning Project Lifecycle For Managers

25B-D6P0N104 Beginner

PowerFlex 525: Installation, Wiring & Startup

Installation Power Wiring Startup

25B-D2P3N104 Intermediate

PowerFlex 525 in a Pump Application

Wiring Parameters EtherNet/IP

25B Series Intermediate

PowerFlex 525 for HVAC Fans & Cooling Towers

HVAC Energy Savings Fan Control

25B Series Intermediate

PowerFlex 525 Fuse & Circuit Breaker Sizing

Fuse Sizing Circuit Breaker NEC Branch Protection

PowerFlex Family Beginner

PowerFlex VFD Selection: PF523 vs PF525 vs PF527 vs PF755

Selection Guide VFD Migration PowerFlex 40

1756-L83E Intermediate

ControlLogix 1756-L83E: Installation & First Program

ControlLogix Studio 5000 EtherNet/IP

1769-L27ERM Intermediate

CompactLogix 1769-L27ERM: 5370 Platform Setup

CompactLogix 1769 I/O Studio 5000

5069-L306ER Beginner

CompactLogix 5069-L306ER: First-Time Setup & Basic Program

Studio 5000 Ladder Logic EtherNet/IP

1756-L85E Advanced

1756-L85E: ControlLogix 5580 for PlantPAx & Batch Process

ControlLogix PlantPAx Process Control Batch

PIDE Block Intermediate

PIDE Loop Tuning From Scratch — Manual Methods (Part 1)

PIDE PID Tuning Process Control PlantPAx Studio 5000

PIDE Cascade Advanced

PIDE Cascade Control: Two-Loop Tuning From Scratch (Part 2)

PIDE Cascade Control Process Control Anti-Windup PlantPAx

PlantPAx Advanced

PlantPAx 4.x Process Objects: Complete AOI Library Reference

PlantPAx Process Objects AOI DCS

PLC-5 → ControlLogix Advanced

PLC-5 to ControlLogix Migration: Hardware, I/O, Wiring, Software

Migration PLC-5 ControlLogix 1492-AIFM

SLC 500 → ControlLogix Advanced

SLC 500 to ControlLogix Migration: I/O, Wiring, and Strategy

Migration SLC 500 ControlLogix 1747-AENTR

5069-IB16 Beginner

5069-IB16: Digital Input Wiring & Ladder Logic

Digital Input Wiring Studio 5000

5069-OB16 Beginner

5069-OB16: Digital Output Wiring & Ladder Logic

Digital Output Wiring Studio 5000

5069-IF8 Intermediate

5069-IF8: Analog Input Wiring, Scaling & Config

Analog Input 4-20mA Scaling

5069-OF8 Intermediate

5069-OF8: Analog Output Wiring, Scaling & Control

Analog Output 4-20mA VFD Control

5069-IY4 Advanced

5069-IY4: RTD, Thermocouple & Temperature Input

Temperature RTD Thermocouple

Analog I/O Beginner

Analog Signal Types: 4-20mA, 0-10V, RTD & Thermocouple

4-20mA 0-10V RTD Selection Guide

Temperature Intermediate

RTD vs. Thermocouple: Types, Accuracy & Sensor Selection

RTD Thermocouple Temperature Selection Guide

5069-IA16 Intermediate

5069-IA16: AC Input Wiring, Config & Ladder Logic

AC Input 120/240V Wiring

5069-RTB Beginner

5069-RTB: Terminal Block Selection, Installation & Wiring

Terminal Blocks Wiring Accessories

5069-AENTR Intermediate

5069-AENTR: EtherNet/IP Adapter Setup & Configuration

EtherNet/IP Remote I/O Networking

5069-IB8S Advanced

E-Stop Safety Circuit: GuardLogix 5380 Wiring & Configuration

Safety E-Stop GuardLogix SIL 3

1734-IB8 Beginner

1734-IB8: Wiring, Configuration & Ladder Logic

Digital Input 8-Point Studio 5000

1734-OB8 Beginner

1734-OB8: POINT I/O Digital Output Wiring & Config

Digital Output Distributed I/O Studio 5000

1734-TB Beginner

1734-TB Terminal Bases: Selection, Wiring & Power Distribution

Terminal Bases Wiring Selection Guide

1734-EP24DC Intermediate

1734 POINT I/O Power & Wiring: Adapters, Expansion Power & FPD

Power EP24DC FPD Wiring

1783-US8T Beginner

1783-US8T: Stratix 2000 Ethernet Switch Installation

Ethernet EtherNet/IP Network Switch

2711P-T7C22D8S Beginner

PanelView Plus 7: Installation, Config & Application Transfer

HMI Touchscreen FactoryTalk

2711P-T10C22D9P Intermediate

2711P-T10C22D9P: PanelView Plus 7 Performance 10" Setup

PanelView Plus 7 HMI FactoryTalk View ME

ET 200SP Intermediate

ET 200SP System Guide: BaseUnits, Modules & ET 200S Migration

Siemens ET 200SP Migration Selection Guide

6ES7151-3BA23-0AB0 Advanced

IM 151-3 PN HF: ET 200S System Architecture & Migration

Siemens ET 200S PROFINET IM 151-3 Migration

6AV2124-0JC01-0AX0 Intermediate

TP900 Comfort: 9" Panel-Mount HMI Setup & PROFINET Config

Siemens SIMATIC HMI Comfort Panels PROFINET TIA Portal

6ES7131-6BH01-0BA0 Intermediate

ET 200SP DI 16x24VDC: Installation, Wiring & TIA Portal

Siemens ET 200SP Digital Input

6SL3244-0BB12-1FA0 Intermediate

SINAMICS G120 CU240E-2: Installation, Wiring & Commissioning

Siemens SINAMICS VFD

6SL3210-1PE12-3UL1 Intermediate

SINAMICS G120 PM240-2: Power Module Installation & Wiring

Siemens SINAMICS Power Module

6GK5208-0BA10-2AA3 Beginner

SCALANCE X208 & X216: Industrial Ethernet Switch Guide

Siemens SCALANCE Ethernet PROFINET

Loading Comments...

Write a Comment...

Email (Required)

Name (Required)

Website

PLC EXCHANGE

Request for Quote · Draft

Your RFQ

0 items

We use cookies to improve your experience and analyze site traffic. No personal data is sold or shared with third parties. Privacy Policy

Your Cart

No products in the cart.

Subtotal: $0.00

2.5 Year Warranty Included

FREE UPS Ground NDA available

Ships Today Order by 4 PM ET

View Cart Checkout

⚡ Machine Down? EMERGENCY Next Day Air Available