Quick take
When you're shopping for sensors, encoders, and machine safety components, the first thing to settle is the signal you need. Do you want a continuous measurement, a discrete beam detection, or a remote wireless reading? The four products here span different sensing jobs: a Monnit wireless temperature sensor, an ifm efector absolute-pressure transducer, a 12mm laser photoelectric switch, and a Honeywell industrial pressure sensor. Their prices are just as spread out, so the right pick depends on your existing control system, the distance you need to sense, and how much you want to spend.
Listed price snapshot
| Product | Listed price | Price position |
|---|---|---|
| Honeywell 89028 4 Industrial Pressure Sensor 103716 8902842131 NEW | USD 23.95 | |
| Photoelectric Switch 12mm 636V 020M Laser Sensor NPN Industrial Sensor | USD 39.72 | |
| Monnit Industrial Wireless Temperature Sensor MNS2-9-IN-TS-ST-L03 | USD 100.00 | |
| ifm efector PI1093 Pressure Sensor / Transducer Industrial Automation | USD 425.00 |
Decision matrix
| Need | Best fit | Why |
|---|---|---|
| Wireless temperature reading inside a Monnit system | Monnit MNS2-9-IN-TS-ST-L03 | 3-foot lead, pre-installed 3V battery, SMA antenna |
| Absolute pressure as an analog signal | ifm efector PI1093 | DC current, analog output, connector termination |
| Beam or presence detection without a big spend | 12mm laser photoelectric switch | NPN normally open output, IP66 construction, 0-20 m range |
| Simple industrial pressure sensing | Honeywell 89028 4 (model 103716) | Industrial pressure sensor, low listed price |
Product notes
Monnit MNS2-9-IN-TS-ST-L03
At $100, this is the only wireless sensor in the group. It comes with a 3-foot temperature lead, mounting hardware, a pre-installed 3V industrial battery, and an SMA antenna for 900 MHz operation. If you already use Monnit's wireless infrastructure, this is an easy way to add a temperature point. The main limitation is that it is made for use with a Monnit system; it is not a standalone transmitter that gives you a reading by itself. It is also new open-box, so the packaging may have been opened even though the sensor itself is new.
ifm efector PI1093 Pressure Sensor / Transducer Industrial Automation
At $425, the ifm efector PI1093 costs the most here, and it offers the most specific electrical profile: DC current, analog output, absolute pressure type, and connector termination. Those details make it a natural fit for industrial automation and process monitoring, and the intended uses include OEMs, maintenance, and retrofitting machinery. If your control system accepts an analog absolute-pressure transducer signal, this is the option to build around. At the same time, the price is the trade-off: at over $400 more than the Honeywell pressure sensor in this guide, it only earns its cost when the analog output and absolute pressure sensing are actually needed. It is new open-box.
12mm Laser Photoelectric Switch
At $39.72, the 12mm laser photoelectric switch is a less expensive way to add beam-based detection. It has a 0-20 m beam range, NPN output, and normally open contact type, with IP66 construction for indoor/outdoor use on gates, garage doors, counting, and personnel-passing checks. Stainless steel contact material adds another layer of physical durability. What you get is a discrete switch, not a transducer: it gives an NPN normally open signal rather than a continuous analog value. That makes it ideal for presence or position detection, but not a replacement for a temperature or pressure sensor. If your machine needs a yes/no beam signal, this is a practical pick at a modest price.
Honeywell 89028 4 Industrial Pressure Sensor 103716 8902842131 NEW
At $23.95, the Honeywell 89028 4 is the least expensive item in this comparison. It is a new industrial pressure sensor, with model 103716 and MPN 8902842131. If your project is a straightforward pressure-sensing job, this gives you a low-cost component to work with. The trade-off is scope: it is a pressure sensor only, not a wireless monitoring package and not a beam-detection switch, so it cannot cover temperature monitoring or presence detection. For someone who needs a simple industrial pressure sensor at the lowest listed price, this is the one to start with.
Final recommendation by use case
- For wireless temperature monitoring: choose the Monnit MNS2-9-IN-TS-ST-L03 if you have a Monnit system to receive the signal.
- For industrial automation pressure feedback: choose the ifm efector PI1093 when your process needs a pressure transducer.
- For beam and presence detection: choose the 12mm laser photoelectric switch when you need a compact photoelectric sensor.
- For a simple low-priced industrial pressure sensor: choose the Honeywell 89028 4, model 103716.
