TRITOM BC66 narrowband modem with SMS is the ONLY narrowband IoT device on T-Mobile's website with SMS.
TRITOM is the ONLY device on T-Mobile's website that is a mini-PCIe card that integrates in a very standard way with other devices and appliances.
TRITOM BC66 is perfect for small data needs when speed is not required, and an inexpensive narrowband SIM connection to T-Mobile's network is desired. Narrowband uses low energy highly reliable radio waves that pass through structures. The potential uses for the TRITOM BC66 are numerous. I expect TRITOM will be bought in large lots, enough to complete production runs of the products that integrate it.
SRMX has delivered TRITOM BC66 to T-Mobile for certification, and T-Mobile certified that it works on their network. There are prototype air monitors that use the TRITOM BC66 which are active in California and can be viewed online: https://nbair.tricascadeinc.net/embed.php?pid=RSM&tid=514516414832708