Help with choosing a modem


#1

hello there , i am searching for a modem that can be part of a remote tank water monitoring system. i use a pressure sensors with an output of 4-20mA ,analog . do you know which of the sierra witless modems has an analog output and can work with 4-20mA ? i was looking at the GL 7500 and the FX series but could not find any references . will be happy to get some help on this matter . many tnx .


#2

Hello,

The FX30 has one IoT connector card port and there are a number of 3rd party companies developing interface cards. Please look at Digikey: https://www.digikey.com/products/en/development-boards-kits-programmers/evaluation-boards-expansion-boards-daughter-cards/797?k=mangoh

Talon Communications and Bipom might be developing an 4-20 mA IoT card for the FX30.

Jon


#3

Hi John , many tnx i will look this one up