Temperature sensors for medicine cold transport chain

I had a client, which wanted to have a mobile client to monitor the medicine cold transport chain with a Bluetooth 4.0 (low energy) temperature sensors. But they had to build a sensor with Bluetooth 4.0 interface first. And because it takes time and money... they gave up

We just have experience with FLS this one sense temp too in the fuel tank, you need first a device that sense ambient temperature and find the way to connect to FM, only need to make the cable connection, we use 4 different kind of sensor and in some cases we built the cable because some companies doesn't sell it.

Actually, we have found some solutions based on like stand alone device and "connected boxes".

What tracker you use ?  if you're use teltonika digital sensor on 1 wire is good.
if you use another tracker have only adc input analog sensor is your choice.

you can use LM317 to supply analog sensor. and use only 1 resister to make basic voltage divider circuit. and then connect junction between sensor/resister to adc input.

Added after    9 minuts  42 seconds:
This chart with my circuit I make it three year ago .

link

hi guys,

we have (thanks to diana) implemented Flextrack lommy 2 Pro... this device can read via active 868MHZ rfid tags also temperature and huminity. You can just put the little wireless sensor into the box and the gps trackes is fixed mounted into the transport vehicle.

Realy nice HW!

Wolf.