This VWR Hygrometers Thermometers with Memory and Probe Model 35519-050 is in real good condition and guaranteed to functions 100%. It came from a local lab that was upgrading equipment and we can accept pay pal or your credit card. Please contact me with any questions. Traceable Read in degrees F and degrees C Units take measurements across a wide humidity range and simultaneously display humidity and temperature. Memory switches display minimum and maximum readings of humidity and temperature over any time period. The hold button freezes the display to capture readings. Miniature probe can be placed virtually anywhere. Units incorporate fast response solid-state sensors. Monitor humidity with a resistive polymer sensor and temperature with a thermistor sensor. Feature a 2.9cm (1 1/8") high LCD display that updates every second. Display temperature in degrees F or degrees C. Run continuously for 100 hours on one battery. Equipped with an RS-232 serial output socket for sending data to a computer. Unit 33500-098 features dew point display and a programmable audible alarm. Ordering Information: Complete with chemical- and shock-resistant carrying case, one 9V alkaline battery, instructions, and a probe with 91.4cm (3') cable. This is only for VWR International, Model 35519-050. It may differ from the image shown in color, features, may be an accessory, etc. Please refer to the model number or contact us if you have any questions. Dimensions: 18.1L x 7W x 3.2D cm (71/8 x 23/4 x 11/4") Dimensions: 8H x 5.2W x 1.6D cm (31/8 x 2 x 5/8") Temperature range: -18 to 93 degrees C (0 to 199.9 degrees F) Probe Dimensions: 21.6L x 1.8dia. cm (8 1/2 x 27/32") Track Page Views With Auctiva's FREE Counter