Cheap temperature sensors
From time to time this thread pops up. I found something which looked interesting and the price was right. I bought one and WOW! It is VERY impressive stuff for any price especially considering how cheap it was. I purchased 10 individual temperature sensors and two temp/humidity sensors, and the SNMP Ethernet module. From unpacking the box to installing the eight sensors in the inlet and outlet ducting of our four A/C units, two more to the inside of two server racks and yet two more to the UPS and general rack areas for ambient temp/humidity monitoring to setting up MRTG graphing and SNMP traps total time was under 4 hours! Very nice stuff. It works out of the box with minimal setup and no fabrication, or development/programming needed. All of this for $445.00 delivered!!! I'm going to order a spare because I like the equipment so much and it is so cheap. http://dcf.sk/microweb/snmpmain.html -Robert Tellurian Networks - The Ultimate Internet Connection http://www.tellurian.com | 888-TELLURIAN | 973-300-9211 "Good will, like a good name, is got by many actions, and lost by one." - Francis Jeffrey
> From time to time this thread pops up. I found something which looked > interesting and the price was right. I bought one and WOW! It is VERY > impressive stuff for any price especially considering how cheap it was. I > purchased 10 individual temperature sensors and two temp/humidity sensors, > and the SNMP Ethernet module. From unpacking the box to installing the > eight sensors in the inlet and outlet ducting of our four A/C units, two > more to the inside of two server racks and yet two more to the UPS and > general rack areas for ambient temp/humidity monitoring to setting up MRTG > graphing and SNMP traps total time was under 4 hours! Very nice stuff. It > works out of the box with minimal setup and no fabrication, or > development/programming needed. All of this for $445.00 delivered! Try $130. These are what Citylink uses, and we're installing now. http://www.digitemp.com/dt1a-isp.shtml -Bill
On Fri Oct 03, 2003 at 10:34:59PM -0700, Bill Woodcock wrote:
Try $130. These are what Citylink uses, and we're installing now.
This is very similar to what I'm just starting to use. I've got the DS9097U attached to our Lantronix console server (but anything which does 9600 baud and can generate a Break will do), and I hang a daisy-chain of iButton temperature probes off of that. The 1wire protocol is a little wierd in places, but I've written several chunks of code to interrogate these iButtons (both direct attached via 9097 and 9097U, and also 9097U via console server), and am just in the process of integrating into our management systems. All in all, a very cheap solution - you can get a working 1 probe system for about $50 if you buy the eval kit, or much less if you buy the bits individually. Simon -- Simon Lockhart | Tel: +44 (0)1628 407720 (x37720) | Si fractum Technology Manager | Fax: +44 (0)1628 407701 (x37701) | non sit, noli BBC Internet Operations | Email: Simon.Lockhart@bbc.co.uk | id reficere BBC Technology, Maiden House, Vanwall Road, Maidenhead. SL6 4UB. UK
I will second Robert's thoughts on these. I picked up 14 sensors (12 temp, 2 humidity) and the SNMP module for under $500. The only hiccup I had was by default the unit had selected the wrong temp sensor type but dck.sk's support answered quickly. The included CDROM has a sample MRTG config, MIBs and some Windows app to SNMP query the unit. ----- Original Message ----- From: "Robert Boyle" <robert@tellurian.com> To: <nanog@merit.edu> Sent: Monday, September 22, 2003 9:10 PM Subject: Cheap temperature sensors
From time to time this thread pops up. I found something which looked interesting and the price was right. I bought one and WOW! It is VERY impressive stuff for any price especially considering how cheap it was. I purchased 10 individual temperature sensors and two temp/humidity sensors, and the SNMP Ethernet module. From unpacking the box to installing the eight sensors in the inlet and outlet ducting of our four A/C units, two more to the inside of two server racks and yet two more to the UPS and general rack areas for ambient temp/humidity monitoring to setting up MRTG graphing and SNMP traps total time was under 4 hours! Very nice stuff. It works out of the box with minimal setup and no fabrication, or development/programming needed. All of this for $445.00 delivered!!! I'm going to order a spare because I like the equipment so much and it is so
cheap.
http://dcf.sk/microweb/snmpmain.html
-Robert
Tellurian Networks - The Ultimate Internet Connection http://www.tellurian.com | 888-TELLURIAN | 973-300-9211 "Good will, like a good name, is got by many actions, and lost by one." - Francis Jeffrey
participants (4)
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Bill Woodcock -
matthew zeier -
Robert Boyle -
Simon Lockhart