Choosing between a safety edge sensor strip and a magnetic safety sensor starts with the hazard you are guarding in the sensors encoders machine safety space. One approach uses a contact ribbon along an edge; the other uses a discrete magnetic sensor as part of a safety control setup. The two products here sit at very different price levels, so the decision is as much about where the sensing happens as it is about budget.
Quick verdict
If you want a pressure-sensitive edge strip at a lower price point, the Industrial Safety Edge Sensor Strip Contact Ribbon Switch is the natural pick. If you need a single Schmersal BNS 33-12ZG with a named model and machine safety control positioning, it is the more defined component, though it costs more.
Comparison table
| Product | Listed Price | Price Bar | Condition |
|---|---|---|---|
| Industrial Safety Edge Sensor Strip Contact Ribbon Switch | USD 29.96 | New other (see details) | |
| Schmersal BNS 33-12ZG Magnetic Safety Sensor | USD 153.00 | New |
Where each product wins
- The Industrial Safety Edge Sensor Strip wins when the goal is a ribbon-style edge sensor with a modest upfront investment.
- The Schmersal BNS 33-12ZG wins when you want a discrete safety component with a clear part number.
Product notes
Industrial Safety Edge Sensor Strip Contact Ribbon Switch
At the lower end of the price range, this is the budget-conscious route into a machine safety setup. The title describes a safety edge sensor strip and a contact ribbon switch, which positions it as a pressure-sensitive solution for edge protection. The condition label is 'New other (see details),' so the unit is presented as new but with a caveat that the condition may differ from a standard retail package. If the plan is to guard an edge with a ribbon-style sensor and keep the initial spend low, this is the option to build around. The trade-off is that 'New other' leaves room for interpretation, so you are choosing it mainly for the sensor type and the low price rather than for a polished unboxing experience.
1PC BNS 33-12ZG Schmersal Magnetic Safety Sensor ID179748 Machine Safety Control
The Schmersal BNS 33-12ZG is the more specific of the two products. The title provides a full model number, the Schmersal name, and the phrase 'machine safety control,' so you are ordering a discrete unit rather than a continuous ribbon strip. It is listed at USD 153.00, which places it well above the strip. That gap is the main hurdle for a tight budget. If your application calls for a component that can be identified by model and you want the part to be a defined component with a clear part number, this is the one to choose. The limitation is the price: this is a single-unit purchase that will take up a larger share of the overall safety system budget.
Final choice by use case
For an edge-protection project that needs a contact ribbon style sensor, go with the Industrial Safety Edge Sensor Strip. For a control setup that needs a discrete sensor with a specific Schmersal model, choose the BNS 33-12ZG. If you are still deciding, let the size of the area you need to monitor and the level of part specificity guide you.
