Might want to consider one of these, it records temp but don't send an alarm. Bonus it sends you pictures so you can see what your pup is up to.
https://www.amazon.com/SPYPOINT-LINK-MICRO-LTE-Link-Micro-LTE-SPP/dp/B086SFX4VP/ref=pd_lpo_200_t_0/141-9302061-2293009?_encoding=UTF8&pd_rd_i=B086SFX4VP&pd_rd_r=d258a5e6-6b84-4873-ab7f-3ce70eea712b&pd_rd_w=AeeTH&pd_rd_wg=0Ox76&pf_rd_p=7b36d496-f366-4631-94d3-61b87b52511b&pf_rd_r=Q8GF8AR8SHKK7NHJR3J3&psc=1&refRID=Q8GF8AR8SHKK7NHJR3J3