When you are equipping a machine-safety setup, the first question is not which sensor is "better" but which job the sensor has to do. For a machine-safety application, the right component depends on the physical quantity you need to monitor: a pressure sensor cannot measure length, and a rotary encoder kit cannot measure pressure. You may need to count length, trigger a stop at a set value, or monitor pressure in an industrial line. These two parts come from different corners of the sensors and encoders world: one is a ready-to-run rotary encoder kit with a digital meter; the other is a Honeywell industrial pressure sensor built around a specific model number.
Quick verdict
For a buyer who needs a complete length or count measurement setup with an adjustable warning value, the 300ppr Rotary Encoder Digital Meter Counter is the straightforward pick. For a buyer who already has a Honeywell 89028 4 system and needs the matching replacement pressure sensor, the Honeywell 89028 4 Industrial Pressure Sensor is the focused, lower-priced choice. The price spread is meaningful: the encoder kit comes in at $86.20 while the Honeywell pressure sensor is $23.95, so the lower-priced item sits 72 percent below the higher-priced item.
Side-by-side comparison
| Product | Price | Price indicator | Best for |
|---|---|---|---|
| 300ppr Rotary Encoder Digital Meter Counter | $86.20 | Length/count measurement with stop/start control | |
| Honeywell 89028 4 Industrial Pressure Sensor | $23.95 | Industrial pressure sensing in a Honeywell 89028 4 setup |
Where each product wins
- The 300ppr Rotary Encoder Digital Meter Counter wins when your job is measuring roll length, counting rotations, or turning a preset value into a stop/start signal. It comes with the wheel and mounting bracket, and its relay output lets it control connected equipment.
- The Honeywell 89028 4 Industrial Pressure Sensor wins when you need a specific industrial pressure component with clear model and MPN identifiers. It is a focused component for an existing 89028 4 setup.
Product notes
300ppr Rotary Encoder Digital Meter Counter
This is the more complete package of the two: a digital electronic meter counter, a 300ppr rotary encoder, a wheel, and a mounting bracket. It is designed to output 300 pulses for every revolution of the wheel, which makes it useful for roll-length measurement and distance counting. The controller includes a relay output, so after you set an early-warning value it can control a connected device to stop or start. The working voltage is listed as 110-220V with a US plug, and the attributes highlight stable performance and durable material. Choose it when the job is counting or measuring length rather than sensing pressure. The trade-off is role: this is a measurement and control kit, not a pressure sensor, so it will not help if your machine-safety need is specifically pressure monitoring.
Honeywell 89028 4 Industrial Pressure Sensor
This Honeywell part is the opposite kind of purchase: a specific industrial pressure sensor with model 103716 and MPN 8902842131. Its application is industrial, and it is new. The model and MPN are the focus, which is typical for a component meant to match a particular Honeywell family. If your machine-safety setup already uses the Honeywell 89028 4 platform, this is the direct part to consider. The trade-off is specificity: the model and MPN are the main guide, so this sensor fits buyers who are already working within the 89028 4 family and need that particular component. For a general pressure-sensing need with no existing system, you would need a different part.
Final choice by use case
- If you are measuring length, counting rotations, or need control at a preset value, choose the 300ppr Rotary Encoder Digital Meter Counter with Wheel & Mounting Bracket.
- If you need an industrial pressure sensor and the Honeywell 89028 4 / 103716 / 8902842131 identifiers line up with your system, choose the Honeywell 89028 4 Industrial Pressure Sensor.
- If you are not sure which physical quantity you need to monitor, remember that these two are not interchangeable: one measures motion and length, the other measures pressure.
Take a moment to identify the physical quantity you need to monitor, and the right part becomes clear.
