yogazoo Posted September 1, 2012 Share Posted September 1, 2012 The latest firmware has enabled compatibility with the Garmin Tempe sensor in many of the ANT equipped Garmin handhelds. There are also new data fields: 24hr Min, 24hr Max, and Temperature. I have a question about how the Min/Max data fields work. Is the log of the temperature extremes recorded only when the GPS is on? Or are the Min/Max values stored in the Tempe Sensor and transmitted to the unit? Quote Link to comment
+coggins Posted September 1, 2012 Share Posted September 1, 2012 I believe they are transmitted realtime just like the heart rate monitor. Will have to see once mine arrives. Quote Link to comment
MtnHermit Posted September 1, 2012 Share Posted September 1, 2012 Is this the device, says Fenix watch but I'm hoping it's universal? Quote Link to comment
+coggins Posted September 1, 2012 Share Posted September 1, 2012 (edited) Is this the device, says Fenix watch but I'm hoping it's universal? Yet you commented "PASS!!!" on the new Oregon firmware so I'll bet you'll be reconcidering that decision. Edited September 1, 2012 by coggins Quote Link to comment
MtnHermit Posted September 1, 2012 Share Posted September 1, 2012 Yet you commented "PASS!!!" on the new Oregon firmware so I'll bet you'll be reconcidering that decision. You got that right! I've had so many crummy digital thermometers, unreadable, unreliable, and recorded nothing. Reading the Garmin page it records to every waypoint, How about that!!! Now for that test of v5.90 and I'll be checking this thread for your expert review. Many thanks. To the OP: I doubt the wireless sender records anything, up to the connected receiver to record. IOWs, don't hold your breath. Quote Link to comment
yogazoo Posted September 1, 2012 Author Share Posted September 1, 2012 I believe they are transmitted realtime just like the heart rate monitor. Will have to see once mine arrives. I assumed the temperature was transmitted real-time but when you get your Tempe check and see if you need to have your GPS unit on to keep track of the minimum / maximum temp or is that stored on the Tempe sensor and transmitted to the unit. It would be great if the min/max temps were kept track of on the Tempe sensor that way I could fire the GPS up in the morning and check how cold it got the previous evening. If the min/max values are only logged on the GPS then I would miss the minimum temp because I'm not going to leave the GPS on all night. Quote Link to comment
+Mr Kaswa Posted September 1, 2012 Share Posted September 1, 2012 I'm sure there are uses that I will never consider, but for a device with a fairly short range meant to be used on the trail or during exercise maybe...... For the best results, be sure to mount tempe away from things that can impact the temperatures of the device, such as your body, hydration bladders, or direct sunlight. .....would seem to limit this things usefulness. Quote Link to comment
MtnHermit Posted September 1, 2012 Share Posted September 1, 2012 .....would seem to limit this things usefulness. Well Doh, can you think of ANY thermometer that doesn't have the same limitations?!?!? Clearly with regards to thermometers, your glass is half empty. Quote Link to comment
+Mr Kaswa Posted September 1, 2012 Share Posted September 1, 2012 (edited) .....would seem to limit this things usefulness. Well Doh, can you think of ANY thermometer that doesn't have the same limitations?!?!? Clearly with regards to thermometers, your glass is half empty. Obviously ANY thermometer will have the same limitations, does that somehow change the usefulness of this $25ish Garmin gizmo? Being able to check and continuously record the temp from "up to 32 feet(10 meters) away" will of course have some uses, but in regard to a device that Garmin is marketing to hikers, "Attach it to your pack, jacket or shoe to accurately keep tabs on the temperature as you head out on your next great expedition."** that will cause your device to eat it's batteries even faster, which in the case of my Oregon is too fast already, I do not see it as very usefull. ** Those locations do not seem to fit too well with the other statement about keeping it "away from things that can impact the temperatures of the device, such as your body, hydration bladders, or direct sunlight." EDITED to change EVERY to ANY. Edited September 1, 2012 by Mr Kaswa Quote Link to comment
+jagmagana Posted November 12, 2012 Share Posted November 12, 2012 Tested in Garmin Oregon 450. You can see the temperature on the screen, but the temperature is not registered in the gpx file (bug that I reported to Garmin). Firmware version 6.0 Quote Link to comment
+Redwoods Mtn Biker Posted November 13, 2012 Share Posted November 13, 2012 Tested in Garmin Oregon 450. You can see the temperature on the screen, but the temperature is not registered in the gpx file (bug that I reported to Garmin). Firmware version 6.0 Are you using BaseCamp to download the track file? Quote Link to comment
Bryan_Hun Posted December 3, 2012 Share Posted December 3, 2012 With the latest firmware version (v6.10) the gps store the temperature data in the curent.gpx Try it! Tested in Garmin Oregon 450. You can see the temperature on the screen, but the temperature is not registered in the gpx file (bug that I reported to Garmin). Firmware version 6.0 Quote Link to comment
yogazoo Posted December 10, 2012 Author Share Posted December 10, 2012 If you use your GPS for in car navigation you can attach the Tempe sensor to the antenna and see temperature data from outside the car. Helpful if your driving and want to know if the roads could be icy. I've thrown a key ring on it and slid it down the antenna. You could also use a magnetic box and slip the sensor inside. Granted some high-falutin' fancy vehicles may have the outside temerature available on a display but not my trusty 89 Ranger. Quote Link to comment
+Redwoods Mtn Biker Posted December 10, 2012 Share Posted December 10, 2012 Nice! Quote Link to comment
MtnHermit Posted December 10, 2012 Share Posted December 10, 2012 Given the cost of Tempe (~$30) and that it requires a firmware version that screws up tracks and the trip odometer, this $10 car temp sensor that plugs in a standard 12V outlet would seem more practical. Link I still haven't given up on Tempe, the firmware is my only pause. Quote Link to comment
yogazoo Posted December 10, 2012 Author Share Posted December 10, 2012 (edited) MtnHermt, That thing's FUGLY! It would be especially so next to my dash mounted Montana!! It would go well on the dash of my 89 Ranger though, it would serve to enhance the late 80's nostalgia. :D Edited December 10, 2012 by yogazoo Quote Link to comment
+Ahern Clan Posted December 11, 2012 Share Posted December 11, 2012 I'll just ask Siri.... Quote Link to comment
+coggins Posted December 11, 2012 Share Posted December 11, 2012 (edited) MtnHermt, That thing's FUGLY! It would be especially so next to my dash mounted Montana!! It would go well on the dash of my 89 Ranger though, it would serve to enhance the late 80's nostalgia. :D just imagine it clipped to your backpack (and a 12V car battery in your backpack also) Edited December 11, 2012 by coggins Quote Link to comment
yogazoo Posted December 12, 2012 Author Share Posted December 12, 2012 just imagine it clipped to your backpack (and a 12V car battery in your backpack also) I can imagine that... and it would suck. Quote Link to comment
yogazoo Posted December 14, 2012 Author Share Posted December 14, 2012 (edited) I'll answer my own question from earlier. The MIN MAX values are indeed stored on the Tempe sensor and transmitted to the GPS. What that means is that you could turn your GPS off, leave the sensor out all night, and when you wake up you can see how cold it got while you were sleeping. Despite the limited minimum value (-5 degrees) the Tempe sensor is pretty handy to have. TEST: Turn your GPS off then place your Tempe sensor in the freezer for 30 minutes. Now pull it out and let it set outside of the freezer for 30 minutes. Now turn your GPS on and you will see the low minimum temperature from when the sensor was in the freezer even though the GPS was off. Edited December 14, 2012 by yogazoo Quote Link to comment
+Atlas Cached Posted December 14, 2012 Share Posted December 14, 2012 More detailed Tempe info here. Quote Link to comment
+Red90 Posted December 15, 2012 Share Posted December 15, 2012 The -20C limit sucks. No use for half the year... Quote Link to comment
MtnHermit Posted December 15, 2012 Share Posted December 15, 2012 The -20C limit sucks. No use for half the year... That says volumes about where/how you live. I rarely see -20C and prefer not seeing 0C, but 0C is now every day, sometimes the high. I wonder if the Tempe's battery is the reason for the -20C limit? Quote Link to comment
+Red90 Posted December 15, 2012 Share Posted December 15, 2012 The -20C limit sucks. No use for half the year... That says volumes about where/how you live. I rarely see -20C and prefer not seeing 0C, but 0C is now every day, sometimes the high. I wonder if the Tempe's battery is the reason for the -20C limit? If it stops working or whatever because it is too cold, fine, but it is still to force a limit like that into the software. -20 is not very cold. Quote Link to comment
CavesOfTQLT Posted December 16, 2012 Share Posted December 16, 2012 -20°C is the limit of the CR2032 battery. If you install a BR2032 battery it should then read down to -30°C. There's talk, but no confirmation or denial from G as yet , that the Tempe is recording full 24hr temperature data on a rolling 365 day period, and that it only requires a firmware update on selective Garmin head units to access this data. Whether this is true or not remains to be seen, but for me working in microelectronics, I cannot see why not as this feature wouldn't require much in terms of storage to accomplish. Precision wise - when it comes to accuracy of the Tempe device I've checked my product against a reference thermometer and it read within 0.3°C@0C/0.4°C@20°C. Transient time (0°C-20°C) was noted at a mean 13 minutes. The Edge 800, for reference, measured 21. My best, CofTQLT Quote Link to comment
yogazoo Posted December 16, 2012 Author Share Posted December 16, 2012 (edited) There's talk, but no confirmation or denial from G as yet , that the Tempe is recording full 24hr temperature data on a rolling 365 day period, and that it only requires a firmware update on selective Garmin head units to access this data. This development would be HUGE! Especially for field workers who need to log temperature data at a specific location over time. Button style data loggers can be relatively expensive and sometimes cumbersome to download in the field. Being able to access and log this data on a Garmin handheld would be a great development since alot of field workers use Garmins. Thanks for the info! Oh and I did notice that my Tempe did log a temperature as low as -7 the other day. I get it now, the "operating temperature" is based on the rating of the battery for cold and not the lower limit of the Tempe!! Edited December 16, 2012 by yogazoo Quote Link to comment
+Red90 Posted December 16, 2012 Share Posted December 16, 2012 -20°C is the limit of the CR2032 battery. If you install a BR2032 battery it should then read down to -30°C. Do you have proof that the -20 is not a software imposed limit? Quote Link to comment
+Red90 Posted December 16, 2012 Share Posted December 16, 2012 (edited) Rayovac says they can do -40C. http://www.rayovac.com/Technical%20OEM/~/media/Rayovac/Files/Product%20Guides/pg_lithium.ashx Panasonic data sheets show -30 for both CR and BR... http://www.panasonic.com/industrial/batteries-oem/oem/primary-coin-cylindrical/br-cr.aspx Edited December 16, 2012 by Red90 Quote Link to comment
yogazoo Posted December 16, 2012 Author Share Posted December 16, 2012 Do you have proof that the -20 is not a software imposed limit? I do. The fact that my 24 Hour Min read "-7" a few days ago. I'll have to wait until it gets that cold again but when it does I'll grab a screenshot. Quote Link to comment
yogazoo Posted December 16, 2012 Author Share Posted December 16, 2012 (edited) Stick your Tempe in a deep-freeze freezer. In my freezer the Tempe has recorded temps down to -8 degrees F which is what an alcohol based thermometer told me as well. So apparently -4 isn't a firmware imposed limit. Here in Helena MT at 5,000 ft elev we usually go a week or two with nighttime temps around -20F in January/February. I'm anxious to see if the Tempe will be able to record values that low. I plan on getting a li-ion battery for the test. Edited December 16, 2012 by yogazoo Quote Link to comment
+Red90 Posted December 17, 2012 Share Posted December 17, 2012 Stick your Tempe in a deep-freeze freezer. In my freezer the Tempe has recorded temps down to -8 degrees F which is what an alcohol based thermometer told me as well. So apparently -4 isn't a firmware imposed limit. That is good to hear. I'll grab one then and try on of the BR batteries. Quote Link to comment
yogazoo Posted December 17, 2012 Author Share Posted December 17, 2012 That is good to hear. I'll grab one then and try on of the BR batteries. I actually used the included battery for the test. Eh, give it a whirl with the alkaline. Quote Link to comment
+Red90 Posted December 18, 2012 Share Posted December 18, 2012 That is good to hear. I'll grab one then and try on of the BR batteries. I actually used the included battery for the test. Eh, give it a whirl with the alkaline. Both the CR and BR are lithium batteries. They are just slightly different types of lithium batteries. Quote Link to comment
yogazoo Posted December 18, 2012 Author Share Posted December 18, 2012 (edited) Both the CR and BR are lithium batteries. They are just slightly different types of lithium batteries. Seems they both have a minimum operating temperature of -30C. Someone above in the thread made it sound to me like there was a difference. Cool, bring on -20F!! LINK TO BATT INFO: CR vs BR Li-ion Batteries Edited December 18, 2012 by yogazoo Quote Link to comment
+fizzymagic Posted December 18, 2012 Share Posted December 18, 2012 30 bucks for a temperature logger? There are actually people willing to pay that much? Wow. Quote Link to comment
MtnHermit Posted December 18, 2012 Share Posted December 18, 2012 30 bucks for a temperature logger? There are actually people willing to pay that much? Wow. It's all about toys! As toys go, it beats a fancy putter. Amazon is full of digital thermometers that exceed $30 that do no more than tell the temp. Because of the ANT wireless, the data can be displayed in numerous places on the GPS screen, that makes Tempe unique. Perhaps a screenshot will appear in this thread as an illustration. Quote Link to comment
+Atlas Cached Posted December 18, 2012 Share Posted December 18, 2012 Perhaps a screenshot will appear in this thread as an illustration. Plenty of screenshots here. Quote Link to comment
yogazoo Posted December 7, 2013 Author Share Posted December 7, 2013 (edited) My Tempe reported a minimum temperature of -14.8 degrees (below zero) Fahrenheit last night. It got down to -19 degrees so the limit (battery or sensor) just might be around -15. Edited December 7, 2013 by yogazoo Quote Link to comment
yogazoo Posted February 7, 2014 Author Share Posted February 7, 2014 Well, I just bested my previous lowest reading (see above post) with my Tempe Sensor. -24!! Quote Link to comment
+Mineral2 Posted February 7, 2014 Share Posted February 7, 2014 -20°C is the limit of the CR2032 battery. If you install a BR2032 battery it should then read down to -30°C. There's talk, but no confirmation or denial from G as yet , that the Tempe is recording full 24hr temperature data on a rolling 365 day period, and that it only requires a firmware update on selective Garmin head units to access this data. Whether this is true or not remains to be seen, but for me working in microelectronics, I cannot see why not as this feature wouldn't require much in terms of storage to accomplish. Precision wise - when it comes to accuracy of the Tempe device I've checked my product against a reference thermometer and it read within 0.3°C@0C/0.4°C@20°C. Transient time (0°C-20°C) was noted at a mean 13 minutes. The Edge 800, for reference, measured 21. My best, CofTQLT According to this site: http://garminmontanagpsr.wikispaces.com/Tempe the Tempe does indeed store 24-hour min/max data. But that's it. If you want to track temperature changes while your GPS is turned off, you'll probably need a Kestrel portable weather station or something similar. Quote Link to comment
Black81 Posted April 8, 2014 Share Posted April 8, 2014 Hello, before you buy Garmin fenix and tempe sensor, I have a technical question: if the actual temperature is 15.5° C, the watch indicates 15° or 16°? round up (15.5=16°C) or truncates only (15.0-15.9=15°C) ? I asked the tech support, but I did not get relevant answers. Thanks Quote Link to comment
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