When you are shopping for sensors, encoders, and machine safety equipment, the hardest part is often matching the sensing principle to your actual machine. Do you need to detect an object crossing a path, or do you need to monitor pressure in a line? These two industrial sensors answer different questions. The EMX Industries Thru-Beam Photometer Sensor IRB-MON 2 photo eye is aimed at entrapment protection. The Honeywell MER02000BYPNKABN01 Pressure Switch is aimed at pressure monitoring in industrial automation and control systems. They do not compete on the same job; they compete for your budget and your application.
Quick verdict
If your priority is entrapment protection for automated doors, gates, or barriers, choose the EMX IRB-MON 2 thru-beam photoeye. If your priority is pressure monitoring in hydraulic, pneumatic, or industrial automation lines, choose the Honeywell MER02000BYPNKABN01 pressure switch. The EMX is also the lower listed price at USD 45.00 versus USD 49.99, a difference of $4.99.
Comparison at a glance
| Product | Listed Price | Price Bar | Condition | Primary Function |
|---|---|---|---|---|
| EMX Industries Thru-Beam Photometer Sensor IRB-MON 2 photo eye | USD 45.00 | New | Monitored thru-beam photoeye for entrapment protection | |
| Honeywell MER02000BYPNKABN01 Pressure Switch Industrial Sensor New | USD 49.99 | New - Open box | Industrial pressure switch for automation and control systems |
Where each product wins
Choose the EMX IRB-MON 2 when you need a UL325-compliant, IP65-rated thru-beam safety photoeye for doors, gates, and barriers. The kit includes transmitter, receiver, integrated protective hoods, and removable lens sunshield, and it works with a wide variety of monitored operators plus most non-monitored legacy products.
Choose the Honeywell MER02000BYPNKABN01 when you need an industrial pressure switch with an explicit model and MPN. It is intended for hydraulic, pneumatic, and pressure monitoring applications. It is genuine Honeywell new surplus stock and comes with its box.
EMX Industries Thru-Beam Photometer Sensor IRB-MON 2 photo eye
This is the option to pick when your safety application is about detecting something crossing a path. The IRB-MON 2 is a monitored thru-beam infrared photoeye built for entrapment protection. It is UL325 compliant and housed in an IP65-rated enclosure, so it can be used indoors or outdoors. The kit includes a transmitter, receiver, integrated protective hoods, and a removable lens sunshield, which gives you the core sensing pair plus the shielding needed for outdoor alignment and protection from the elements. It is also designed to work with a wide variety of monitored operators and compatible with most non-monitored legacy products. The limitation is clear: it is a photoeye, not a pressure switch, so it will not monitor pressure in a line.
Honeywell MER02000BYPNKABN01 Pressure Switch Industrial Sensor New
Choose this one when your control system needs pressure monitoring rather than object detection. The Honeywell MER02000BYPNKABN01 is a genuine Honeywell industrial pressure switch, with the model and MPN both given as MER02000BYPNKABN01. It is intended for industrial automation and control systems, and for pressure monitoring applications. The unit is new surplus stock and comes with its box; the condition is New - Open box, and there may be minor cosmetic shelf wear from storage. The explicit model number makes it easy to identify the part. The limitation is that this is a pressure switch, not a thru-beam photoeye, so it will not act as a safety beam.
Final choice by use case
For entrapment protection applications, choose the EMX IRB-MON 2 thru-beam photoeye. For pressure monitoring applications, choose the Honeywell MER02000BYPNKABN01 pressure switch. If your project needs both types of sensing, plan for one of each, since a photoeye does not monitor pressure and a pressure switch does not act as a safety beam.
