How do you all monitor temperature and humidity?

[briandm81]

While I move everything to my new garage data center, it occurs to me that I won't see/hear my servers very often. So if the heat starts going off the charts, I won't have any idea...

So what do you all use to monitor your temperature and humidity? I'm considering this option:
Amazon.com: La Crosse Alerts Mobile 926-25101-GP Wireless Monitor System Set with Dry Probe: Home & Kitchen

It's very cheap, but has mixed reviews. I just want something to give me alerts and I'll pay $1 a month for the monitoring. Thoughts?

 

[markarr]

Depending on what UPS you use it may have that functionality available. The APC Smart-UPS management cards have either temp or temp and humidity, it will send out emails if it reaches thresholds.

 

[T_Minus]

I have Amazon.com: Extech 445815 Humidity Meter with Alarm and Remote Probe: Home Improvement and also the smaller and much cheaper ($8-11) AcuRite 00613 and they're within 2-4% most of the time. Unless Ineed the probe I go for the AcuRite. I got USB ones to play around with making my own DIY monitoring station just haven't gotten to that one of the many 'extra' projects

 

[PigLover]

Room environmentals are reported by my APC UPS (or - more precisely - by the network card plugged into the UPS).

I also monitor all the server sensors I can via IPMI and/or SNMP (for switches).

I use Zabbix to collect it all and report if things get seriously out of whack.

Sent from my SM-G950U using Tapatalk

 

[PigLover]

BTW - the APC card has connections for two sensors. In your case you could get the second one and monitor hot-side/cold-side seperately.

Sent from my SM-G950U using Tapatalk

 

[wiretap]

Raspberry Pi + DHT22 sensors. Cheap and easy, can be logged over time with SQL, viewable from any device with network connectivity, custom alerts are possible, multiple sensors and locations are possible, other types of sensors are possible to integrate (i.e. chassis open/closed, cameras, motion sensors, relays), etc.

Nice example: RPi-Experiences: RPi-Monitor: Use a DHT11 or DHT22 humidity and temperature sensor

 

[Terry Kennedy]

BTW - the APC card has connections for two sensors. In your case you could get the second one and monitor hot-side/cold-side seperately.

APC has a number of different cards. AP9618 / AP9619 only works with older UPS models and has support for 1 probe (temp/humidity or temp only), as well as some dry contact / relay outputs. AP9618 adds a modem that AP9619 doesn't have. Probes are AP9512T or AP9512TH (temp or temp / humidity). BLK suffix indicates black color, otherwise beige. AP9631 is the modern APC card, works with more UPS models including newer ones, and has 2 universal (UIO) ports which can be temp or temp / humidity probes (AP9335T / AP9335TH) or a dry contact probe (AP9810). The Dell part number for the AP9335TH probe is H621N and is often less expensive than the APC variant (if you can find it).

If you have an APC UPS, you can also monitor the runtime, load, etc. and get email notifications from the card. You can also make nice graphs:

 

[wildchild]

Room environmentals are reported by my APC UPS (or - more precisely - by the network card plugged into the UPS).

I also monitor all the server sensors I can via IPMI and/or SNMP (for switches).

I use Zabbix to collect it all and report if things get seriously out of whack.

Sent from my SM-G950U using Tapatalk

Here too zabbix and snmp to monitor just about everything from switches to servers