When you're choosing between sensors, encoders, and machine safety components, the real question is what you need the device to do on your line. Are you tracking pressure in a hydraulic or pneumatic circuit, or do you need to measure rolled length by counting wheel rotations? The right option depends on your application, not just on price. These two tools are both useful, but they solve different problems. The Honeywell MER02000BYPNKABN01 is a dedicated industrial pressure switch. The rotary encoder package is a complete measuring kit for length and rotation. Here's how they compare.
Quick Verdict
If your goal is pressure monitoring and you have an industrial automation, hydraulic, or pneumatic setup, the Honeywell pressure switch is the direct, low-cost answer. If your job is measuring length or counting rotations, the rotary encoder kit gives you a ready-to-run package for $86.20. The Honeywell is the lower-priced option at $49.99, but a lower price only matters if it fits the task.
At a Glance
| Product | Price Bar | Price | Use This For |
|---|---|---|---|
| Honeywell MER02000BYPNKABN01 Pressure Switch Industrial Sensor New | $49.99 | Hydraulic, pneumatic, and industrial automation pressure monitoring | |
| 300ppr Rotary Encoder Digital Meter Counter with Wheel & Mounting Bracket | $86.20 | Roll length measuring, rotation counting, relay-controlled stop/start |
Where Each Product Wins
The Honeywell pressure switch wins when your application needs a genuine industrial pressure switch from Honeywell. It's built for monitoring pressure in industrial automation and control systems, and the surplus-stock unit includes the original box. But it does one job: pressure switching.
The rotary encoder kit wins when you want a complete measuring solution. With 300 pulses per wheel revolution, it lets you set a warning value, and the controller can stop or start a device when that value is reached. You get the meter, encoder, wheel, and mounting bracket together. It's the more complete package, purpose-built for length measurement.
Product Notes
#### Honeywell MER02000BYPNKABN01 Pressure Switch Industrial Sensor New

If pressure monitoring is your priority, this Honeywell switch gives you a genuine Honeywell model in a straightforward package. It's listed as new surplus stock with the box, and it suits industrial automation, hydraulic, pneumatic, and pressure monitoring tasks. The reason to choose it is simple: you get a genuine Honeywell pressure switch model with the box included, and the function is exactly pressure switching. The trade-off is that it won't help you with length measuring or rotation counting. Plus, because it's surplus stock, you may see cosmetic shelf wear or packaging wear from storage. If your line needs a pressure switch, this is the one to pick.
#### 300ppr Rotary Encoder Digital Meter Counter with Wheel & Mounting Bracket

For measuring rolled length or counting wheel revolutions, this complete kit is the one to reach for. It bundles the rotary encoder, a digital electronic meter counter, a wheel, and a mounting bracket, so you don't need to hunt down parts separately. You can set a warning value, and the relay output lets the controller stop or start equipment when that value is reached. The reason to choose it is the all-in-one convenience and the fact that it's ready for length measuring out of the box. The limitation is that it's not a pressure sensor, and the package is built specifically for wheel-based counting. Also, it runs on 110-220V with a US plug, so it's best for power setups that match. It's the right tool for counting and length tasks.
Final Choice by Use Case
In the sensors, encoders, and machine safety category, these are two different answers to two different questions. If you need pressure monitoring in hydraulic, pneumatic, or industrial automation, go with the Honeywell MER02000BYPNKABN01 pressure switch. It is the focused, dedicated pick for this task. If you need to measure roll length or count wheel rotations, get the rotary encoder kit. It brings together everything you need for a measuring setup.