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Usb Room Thermometer Review

2010-02-27T16:00:00Z

I had no unreasonable expectations about Usb Room Thermometer, because I knew it to be thermally coupled to the (hot) computer over the fairly short USB extension, but this device far below even my expectations rather low. In short, it has three flaws I discovered after a brief examination:
1) If you tried to measure just to a temperature above 37 C, they will get "glued" at 37,00 C, which is a very suspicious property. Only when the temperature is above 39 C, it will get to "glue", and produce a higher temperature reading. The curve presented by the nice software bundled with the device that "makes mistakes" on the hand.
2) It significantly Hysteresis: The temperature reading in the same compartment was dependent on the starting temperature of the device (if you're already pre-heat or cool it, the final value is different) after a reasonable period of equilibrium. The hysteresis is more than 2.0 C, which is unacceptable.
3) It significantly overestimates the ambient temperature, probably due to the thermal coupling with the computer.
On the positive side I can only say that I love her with the software bundled with curve-plot, etc. I only wish that the thermometer itself was accurate to at least 1.0 F (0.56 C), that's all I needed.

TEMPer USB thermometer on Linux

2010-02-27T16:00:00Z

Some time ago I bought a cheap Linux USB Thermometer called humor. I was disappointed that they do not work on Fedora. It would be only under Windows with a bad piece of proprietary software.
Finally, I found the blog by Tollef Fog Heen, who had managed to get his temperament, work. Unfortunately, his solution is involved in patching and compiling a kernel.
But since then, it seems that his patch has been integrated into the stock Fedora kernel and it is now possible to read the temperature of her.
The mood seems to be a device USB serial adapter, a serial I2C device on the end. It is not easy to extract the temperature, but Tollef Fog Heen has a simple C program, written at the temperature again.
His program surveys the mood on every second and prints the temperature on the command line. It does not stop until you kill the program. I made a few small changes to the code so that it prints the temperature once like a raw number without extra formatting text and then exits. You can change my source code here.
Disclaimer: I do not know C. I have not changed any of the logic of the code, just the way it prints the output. If the code is faulty, so it was not!
Now I have an executable file, the temperature of the atmosphere, I can think of some buildings application that could use them. How about Nagios plugin?

USB Thermometer

2010-02-27T16:00:00Z

USB Thermometer Highlights:
This is a temperature data logger, that, regardless, you plug it clog up your PC or can not work on the PC.
You can use it anywhere, andy time and records the temperature, when and where. Once the built-in battery is full, it can independently represent a continuous working 4 months (or up to 5 months).
If it is logging data, it is an LED flash. You can even have a temperature when the data is compatible with the area, the green LED blinks when it is out of the area, it will blink blue when it is logging data, it flashes red.
If you have had sufficient data (or reach the standby time), you can to your PC for charging (the Temper Live) and loading data to connect to the PC.
Features:
- Powered by built-in lithium battery
- Recharged either by USB or AC (via USB)
- LED status indicator for different
- Remote logging data for continuous 4 months (or around 98000 pieces of data, if either reaches maximum)
- Temperature: -40 ° C ~ 80 ° C (or -40 ° F ~ 176 ° F)
- The data are from every 1 seconds to be logged in to all 256 hours / once
- Could work as a stand-alone temperature recorder
- Could be data export / copy and paste in Word (. Txt file) or Excel
- USB interface

Suitable for:
- Laboratory
- Sauna Shop
- Yard
- Environmental Work
- Ice Room / Refrigerator

Specifications:
- Battery Capacity: 110mA, 3.7V
- Charging time: 500 times
- Dimenstions: 89mm (L) x 37mm (W) x 7mm (H) Approx.
- Weight (net): approx 16g.
- Charged by USB bus or USB AC Charger

Packing:
- USB Temper thermograph - The USB Temperature Recorder x 1
- USB cable x 1
- Driver CD x 1
- Hand strap x 1

Packaging:
- Blister

Usb Wireless Thermometer

2010-02-27T16:00:00Z

Whether it's a roast for a party or a turkey for the holidays, this handy thermometer will provide meals to be cooked to perfection. The device features a digital LCD screen and identify a remote wireless probe to the temperature of the meat. Simply insert the stainless-6-inch probe into the meat, run the 40-inch wire from the oven or grill, and close the door. The sensor shows the current temperature from 32 to 572 Grade F. starters from eight programs, including beef, lamb, veal, hamburger, pork, turkey, chicken, choose, and fish, along with four doneness selection, including rare ones, medium, medium and well done. Two oral and three audio alert options indicate the status of food - almost ready, ready, and overcooked. After reaching the selected temperature, an audio alarm will sound. Since the thermometer offers wireless operation, there is no need to miss the party in order to constantly check on the dinner. In fact, the main unit can receive signal from the probe located up to 330 meters. Moreover, in the thermometer in five languages (English, Spanish, German, French and Danish), offers a low-battery indicator, and the probe detaches from sensor for easy cleaning. Two AA batteries for the main unit and two AAA batteries for the transmitter are included. The main unit measures 5-3/5 by 2-3/4 by 1-1/2 inches, and the remote unit measures 3-2/5 by 3-2/5 by 1-1/5 inches.
Usb Wireless Thermometer
We leave you know when your BBQ is ready from a football field! No need to find out through the grill to when the food is ready - this wireless thermometer verbally informs you if the meat has reached the perfect temperature to wait. Program your choice of eight starters, choose the doneness desired and you're good to grill. Features include: Digital LCD screen with remote wireless probe to identify temperature prepared meat speaks five languages with corresponding display (English, Spanish, German, French, Danish), and Programmable entrée programs, beef, lamb, veal, hamburger include , pig, turkey, chicken and fish.

My USB Thermometer Review

2010-02-27T16:00:00Z

While this thermometer is cheap compared to other USB thermometer, it is the task on a computer with XP. Unfortunately, the software comes with is bad, to say the least, but that's not a problem, because there are some really good alternatives, such as UTAC (freeware). With UTAC TEMPer a very useful tool for e-mail alert when changes temp, web server monitoring and other nice features.
On the other hand, on comparing the performance of two tempers, I found that they deviate by about 1 degree Celsius, so you want to calibrate TEMPer against an accurate thermometer (could) be in UTAC. While likely to be TEMPer for monitoring server room temperatures well if the freezer or outside temperatures TEMPerNTC you need to want to monitor a waterproof probe.