Two industrial sensors, two very different jobs. One is a Honeywell pressure switch built around monitoring pressure in automation and fluid-power systems. The other is a Schmersal BNS 33-12ZG magnetic safety sensor aimed at machine safety control. When you're comparing sensors encoders machine safety components, the real question isn't which part is better overall; it's which sensing job sits in front of you: pressure monitoring or magnetic position sensing.
Quick Verdict
For a straightforward, lower-cost pressure-sensing need in an industrial panel, the Honeywell MER02000 is the practical pick. For a machine-safety-control application that specifically calls for a magnetic safety sensor, the Schmersal BNS 33-12ZG is the component that fits the role, even though it carries a significantly higher listed price.
Comparison at a Glance
| Product | Listed Price | Type | Condition | Key Difference |
|---|---|---|---|---|
| Honeywell MER02000BYPNKABN01 Pressure Switch | USD 49.99 | Pressure switch | New - Open box | Pressure monitoring for industrial automation, hydraulic, and pneumatic systems |
| Schmersal BNS 33-12ZG Magnetic Safety Sensor | USD 153.00 | Magnetic safety sensor | New | Positioned for machine safety control |
Where Each Product Wins
- The Honeywell MER02000 wins when your project centers on pressure monitoring and you want the lower-cost component. Its listed price is about $103 lower than the Schmersal, so it leaves more room in the budget for other controls.
- The Schmersal BNS 33-12ZG wins when the control scheme calls for a magnetic safety sensor rather than a pressure switch. It is listed as new, with no open-box condition note, and its title directly ties it to machine safety control.
Product Notes
Honeywell MER02000BYPNKABN01 Pressure Switch
At $49.99, the Honeywell MER02000BYPNKABN01 is the lower-cost entry point in this pairing. It is listed as new-open-box surplus stock, with the original box included and a note that minor shelf wear may be present. The model and MPN are identical (MER02000BYPNKABN01), which makes it easy to cross-reference when ordering. The application scope covers industrial automation and control systems, with hydraulic, pneumatic, and pressure-monitoring duties. If you're assembling or repairing a control panel that needs a pressure signal, this switch is the lower-cost way to get it. The trade-off is scope: it is not a magnetic safety sensor, so it won't cover the machine-safety-control role that the Schmersal is named for. As long as you accept the surplus-condition caveat, it is a functional pressure switch for the price.
Schmersal BNS 33-12ZG Magnetic Safety Sensor
The Schmersal BNS 33-12ZG is the part to look at when magnetic safety sensing, not pressure, is the goal. The product title identifies it as a machine safety control component and gives the reference ID179748, a useful number for matching the part to your control documentation. At $153.00, it costs $103.01 more than the Honeywell, but it is listed as new rather than new-open-box, so you avoid the surplus-wear question. The trade-off is suitability: it is a magnetic safety sensor for machine safety control, not a pressure switch, so it should not be expected to handle pressure-monitoring duties. If your control scheme requires magnetic safety sensing, the higher price buys the right function class. If you only need a pressure switch, this is the wrong part at any price.
Final Choice by Use Case
Choose the Honeywell MER02000 pressure switch when your task is pressure monitoring in an industrial automation setup and budget matters. Choose the Schmersal BNS 33-12ZG magnetic safety sensor when your control scheme calls for machine-safety sensing and you can absorb the higher listed price. If your system needs both kinds of signals, these two parts aren't interchangeable; they solve different problems, so the right pick is the sensor your machine actually needs.
