Short answer: Choose the QDW90A G1/2 pressure transmitter (from $62.99) when you need a lower-cost 4-20 mA, 0-10 V or RS485 signal and the reading is shown on your PLC or HMI. Choose the YB-2088 (from $204.99) when you also want a local LED display at the measuring point or a different process thread (G1/4, G1/2, M20x1.5, NPT1/4 or NPT1/2). The specs below are taken from the two product listings.
Side-by-side specs
| QDW90A G1/2 transmitter | YB-2088 with LED display | |
|---|---|---|
| Store SKU | ABX-AE-042051 | ABX-AE-546786 |
| Process connection | G1/2 thread | G1/4, G1/2, M20x1.5, NPT1/4 or NPT1/2 (you choose) |
| Outputs offered | 4-20 mA, 0-10 V or RS485 | 4-20 mA or RS485 |
| Supply | 24 VDC | 12-24 VDC |
| Ranges offered | From -1…0 bar and 0-0.1 bar up to 0-200 bar and 0-600 bar | From 0-10 kPa up to the MPa ranges listed; overall range family -100 Pa to 100 MPa |
| Local display | No | Yes, LED |
| Sensor | Not stated in the listing | Diffused silicon |
| Housing | Threaded body | 2088-style housing; the supplier calls it explosion-proof, but no hazardous-area certificate is included |
| Media named | Oil, water, gas, air | Not stated in the listing |
| Price (USD) | $62.99–$83.99 | $204.99–$259.99 |
Prices as listed on 4 November 2026; the product page always shows the current price for each output and range.
Questions and answers
Which one should I use with a PLC analog input?
Both offer a 4-20 mA output, which is the usual choice for a PLC analog input. The QDW90A also offers 0-10 V if your input card is voltage-only. If you need Modbus over serial, both offer an RS485 version.
Can I use the YB-2088 in a hazardous area?
Not on the strength of this listing alone. The supplier describes the housing as explosion-proof, but no ATEX, IECEx or Class/Division certificate comes with it. Confirm that any device meets your site’s classification before you install it in a hazardous area.
My fitting is NPT, not G (BSPP). Which one fits?
The YB-2088 is offered with NPT1/4 or NPT1/2. The QDW90A is G1/2 only, so an NPT port needs a suitable adapter. G and NPT threads are not interchangeable.
How do I pick the range?
Pick a range above your maximum working pressure, so normal readings sit in the middle part of the scale rather than at the top. Both listings let you choose the range as a variant.
Buy
- QDW90A G1/2 industrial pressure transmitter, from $62.99
- YB-2088 digital pressure transmitter with LED display, from $204.99
Free US shipping on every order. Specs above come from the product listings; if a value you need is not listed, it is not stated by the supplier.