| M-241: Holux M-241 Bluetooth Data Logger GPS (Runs on AA Battery, MTK Chipset, 130,000 Waypoints) |  | Brand: Holux
Category: CE
Buy New: $63.99
as of 9/8/2010 03:17 CDT details
New (2) from $63.99
Seller: CE Compass
Rating:  reviews
Sales Rank: 18,202
Shipping Weight (lbs): 0.7
Dimensions (in): 10 x 6.2 x 1.7
MPN: M-241
Model: M-241
UPC: 811745010052
EAN: 0811745010052
ASIN: B0011XV19O
Availability: Usually ships in 1-2 business days
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| Features:
| • | The Holux M 241 Bluetooth GPS logger provides real time coordinate logging and easy-to-use trip guiding service. | | • | Holux M-241 is capable to record up to 120,000 records positions, including longitude, latitude, UTC, and height data. | | • | Besides the logger function, you are also able to enjoy a brand new experience in driving with BluetoothTM | | • | 51 parallel satellite-searching channels for fast acquisition and reacquisition | | • | LCD display ( 32 x 8.9mm/128 x 32 pixels) to show position information, speed, capable logging memory size |
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| Editorial Reviews:
Product Description
The M-241 is a high performance wireless GPS logger with the following features:
# Dual interface (Bluetooth + GPS-mouse by USB cable).
# Compatible with Bluetooth Serial Port Profile (SPP) completely.
# Powered by one AA battery.
# LCD display to show position information, speed, capable logging memory size, date & time.
# Capable memory size to record up to 130,000 positions, including longitude, latitude, time, and altitude.
# Personal settings to select the logging mode by distance or time, unit by Kilometer or mile, and 3 languages (English, Traditional Chinese, and Simplified Chinese) support.
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| Customer Reviews:
 Great performance if this is the device you want. July 31, 2010
A. Pezzuto
What I wanted was a small device that can tag my photos with their location once I get back home from the zoo, hike, etc. This is one of several devices that at the 50-100$ range can do that. Where this device shines is it has a display that is actually useful. This gps locks on pretty fast, with bluetooth turned off the battery will easily last for 18+ hours, and in a pinch its Long/Lat display can tell you where you are within about 25ft (it may be more accurate than that, but my maps are not.) For time adjustment, every couple of days (definitely every time you change location by more than a timezone) Take a picture of the gps displayed time. This makes calibration easy, and accurate to 1-2seconds.
Other good uses for this - record paths around town, or hiking / jogging trails, spy on your kids (turn it to record every x feet, and tuck it in their backpack or toss it in their messy car.
Not only would I buy it again in a second, but anyone who asks what it is gets a 3-5 min sales pitch. This little thing was exactly what I was in the market for!
 Good compact GPS and photo logger November 2, 2008
Graham (Palo Alto, CA)
19 out of 19 found this review helpful
This is a good compact GPS logger, which is primarily intended for geotagging digital photos.
The idea here is that the GPS logger periodically records your GPS location and then, later on, the Holux Logger Utility takes this timestamped GPS information and compares it against the JPG timestamps on your photos. Then for each photo, it can find the GPS record that best matches the photo time and add that GPS location information to the photo.
The basic idea works well. The M-241 is sometimes a little awkward to use, but I like mine enough that after I accidentally lost my first one, I quickly bought a second. I use the GPS info for both tagging photos and for generating route maps.
Some specific positives:
* The logger is very compact and easily fits into a pocket.
* The Holux logger utility uploads GPS data as either proprietary TRL files or as Google Earth KML files. The KML files can be easily viewed with Google Earth.
* GPS signal sensitivity is quite good. It can sometimes take several minutes to get an initial fix, especially if you are moving, but it tracks quickly thereafter.
* The LCD display is useful: I enjoy being able to watch things like direction, or speed, or travel distance as I travel.
Now some weaknesses:
* A Duracell Alkaline AA lasts me about 15 hours and a Lithium AA about 22 hours. (Fairly typical battery life for a GPS device.)
* The battery case cover is rather flimsy and needs cautious handling.
* The two button control UI on the logger takes a little getting used to. I can now navigate it quickly, but I initially found it rather frustrating.
* The logger utility UI is distinctly clunky and the manual is rather weak. The UI does the job, but not particularly elegantly.
* You need to keep your camera time synchronized with the logger's time and you need to compensate for timezone differences when you do the photo tagging.
You can use either USB or Bluetooth to communicate with the logger. I've been using USB on Vista, without any problems. I can't speak to the Bluetooth functionality.
Some suggestions:
* Make sure to download the latest firmware and logger utility from the Holux website. The latest versions have bug fixes and some feature additions.
* In the logger settings, turn "AutoLog" to "on". This means it will start logging as soon as it gets a GPS fix, and you don't have to remember to separately turn on logging.
* Rather than worrying about time zones, I ended up leaving my camera permanently in UTC+0 (GMT). The logger always writes its TRL records in UTC+0, so this means I can tag photos without having to specify a timezone adjustment.
* By default, the logger logs every 5 seconds. I moved it to every 30 seconds, which I find adequate for photo location and lets me store over a month of records.
* If you're using USB, it's worth turning off the Bluetooth radio to save power. (This is a new feature in the v1.12 firmware.)
Overall, this isn't perfect, but I find it very convenient as a lightweight tool for GPS and photo logging.
simple logger that works June 17, 2008
Paul Macey (Los Angeles, CA United States)
11 out of 11 found this review helpful
I've had this for a few months, and it works. I take it hiking and use other software (GPicSync, free) to geotag the photos. Make sure you set your camera to the right time (get the "true" time from the logger). I seems pretty accurate, finds the satellites after a little while (< 1 min), and has enough recording options. I really like that it uses AA batteries; it will run all day on a lithium rechargeable (2700 mah) that I also use for my camera. When I'm away for a few days, I just bring extra AA's. It can store a lot of waypoints. It has distance and time logging options, can display speed, distance traveled, location, can be locked to avoid accidentally turning logging on/off. And it's been knocked around without complaining.
The USB and bluetooth work fine on a couple of computers (XP); it is important to install the USB drivers before connecting it. I find the USB much easier than the bluetooth. You can adjust the settings from the software, which makes life easier.
OK, some quirks: the software appears to offer geotagging, but does not; the GPicSync works great though. With the USB connection, you have to figure out which COM port it connects to; this is trial and error (COM6 for me), but it stays the same each time you connect it. If it runs out of power while logging, the file is lost (same thing if you accidentally turn it off); there is a low-battery indicator, but you need to be checking it pretty regularly, or have a good idea how long your battery will last. The battery cover feels pretty fragile. You can't tell it to start logging until you get a fix on the satellites, which means each time you turn it on you need to remember to start logging a minute later.
I think for money and convenience (AA, reasonable memory, accuracy), it's the best logging option - at least in March it was!
It is a good product. Needs improvement August 27, 2010
harmonicblue
I bought a Holux M-241 recently for geo tagging my photos. I like its small size and single battery design. The best thing for this device is that it displays time, location, travel direction, travel distance. I used the displayed time to synch my camera time. It can be used in place of a watch. Changing time zone is very easy. One of the reasons I choose this device is that it can output track data in NMEA format which is compatible with my computer's setup for geo tagging. I give it thumb up regarding the ease of use in the field.
Uploading track data to a computer is quite a hassle. The provided USB driver does not install on Windows Vista. The name of the USB driver file is different from what it says in the user manual. The device is not displayed in Windows Explorer when connected. You are out of luck if your laptop has no driver installed when you are traveling for an extended period of time. The maximum storage is for 180 hours of track data which may not be adequate if you do not carry a laptop on a long trip. You can not simply plug it into a hotel computer and transfer the track data to a storage device for later use. The default setting for recording track data is OFF. You have to turn the recording on in a deeply buried menu item the first time you use it. Compared with another GPS device (an AMOD model) I have, I give this device thumb down on the uploading data.
Software isn't compatable with the item February 15, 2010
K. Orkoshneli
1 out of 2 found this review helpful
The software supplied with the GPS logger (M-241) doesn't works with this item, I had to download soft and drivers from internet.
The item can be powered by USB but only in case whne it's in OFF mode!!! Keep this in mind, connecting the item to USB doesn't save battery life! You should turn off the logger to go in usb power mode (that isn't written in the user guide which is almost useless an too short!!!)
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