H&H USB Hart Modem WS232UP USB To Hart Protocol Modem Hart Transmitter HART Convertor With 24VDC & Built-in Loop Resistor Temperature Controller by Daphne's Headcovers

Included software is just a bunch of freeware programs that can be downloaded from the various manufacturers. I work mostly on Rosemount stuff, and none of the included programs allow me to calibrate them unless I purchase an expensive license. This modem also draws a bit of current from the 4-20mA loop, so when I connect to a transmitter that's in service the loop current jumps by about 2.7mA, no matter what setting the switch is on. Tech support and instructions are basically non existent, and good luck getting a refund if it doesn't work for you and your application. I was able to get it mostly working using a paid android app called AndroHART, but it only allows a few basic things. For instance, you can zero a transmitter but not calibrate the URV. This app also doesn't do any sort of live view, so you have to poll the transmitter constantly to see updated values. This HART modem does sort of work for some situations though, but not as advertised with the software that is included.

Works great and extremely easy set up. No issues with drivers, just download PactWare and the proper DTM for your device and it connects right away. Powered up a few transmitters right from my USB port, no issues there either.

this product did not function as software could not download

Great modem that can power transmitters off the USB port too! Interfaces with Rosemount AMS Device Configurator. If you need updated drivers search for "vcp drivers". The FTDI chip drivers works with Windows 10 and 11. One thing I have found that is very helpful if you connect to the modem with older software; In windows open "Device manager" , go to the Ports. There you can right click on "USB Serial Port" which is this device, and go to Properties. Set the bits per second to 1200. (You only need to do that once) The modem will now interface with older software that can't automatically adjust, as well as newer software that can!!

I disliked the downloading of the device driver for the unit. It took a lot of looking to find and get it installed. Once the device driver was installed, the unit worked just fine. The 24VDC power to the device being programmed was very convenient.