At this thermometer, the IC thermo sensor (S8100) or the diode (1S1588) is used as the thermo sensor. When using the IC thermo sensor, the thermometry to +100°C from -40°C is possible. Also, when using the diode, the measurement to +150°C from -20°C is possible. Both sensors are contained in the kit.
LCD Thermometer With Range From -20 to +150°C: [Link]
The Windmeter is an anemometer designed to measure and record wind speed distribution from 0 to 17+ meters per second. It was designed for high reliability, ease of construction, and for a wide environmental range. Data is logged over a period of 30.46 days (1/12 of a year), and then saved for 11 months. The data can be retrieved with a laptop computer any time within the 12 months of logging. The Windmeter is self-powered by a solar pannel and battery. Calibration of the Windmeter can be done against a car’s speedometer or better yet a GPS receiver. The Windmeter should cost you under $300 Can. to make.
Windmeter / Anemometer: [Link]
These days more and more temperature sensor projects appear on the internet so the world must be in need of temperature sensors 
. Daniel got hi’s done and up on the blog. The project is based on the LM35 Precision Temperature Sensor and the Arduino. He also plans on building a temperature sensor with max/min + clock and LCD, he promisses to post it on the blog when its finished.
Arduino Temperature Sensor: [Link]
The PO Box is a dsPIC30F2012-based pulse oximeter that can be used by medical professionals and home healthcare providers to measure a critically ill patient’s arterial oxygen saturation. A small mezzanine board interfaces to a sensor and serial port. A 2 × 8 character display provides SPO2 and heartbeat data.
PO Box - Just Another Oximeter: [Download Project] - [View Project PDF] - [via]
In my opinion a very original idea, because I’ve never seen a eletronic stethoscope. And besides the originality you’ve got functionality which is great. The stethoscope gets the sound trough a microphone place inside the classic stethoscope sensor. The temperature and pulse are showed on a 3 digit 7 segment display.
Electronics Stethoscope With Pulse and Temperature Readings: [Download Project] - [View PDF] - [via]