This VWR 35519-050 Traceable Hygrometer is in great condition and is guaranteed to be fully functional. This unit came from a local lab that had surplus lightly used equipment. We urge customers to view all photos as they show overall condition included accessories and functionality. Please feel free to contact us with any questions. *Battery not included Feature: VWR Hygrometers/Thermometers with Memory and Probe - Hygrometer/Thermometer, Model 35519-050, Each Feature: Hygrometer/Thermometer Feature: This item is sold by the Each Feature: Weight: 303 g (10.7 oz.) Feature 5 Temperature Accuracy: +/-1 degrees C (+/-1.8 degrees F) from 0 to 40 degrees C (32 to 104 degrees F); +/-2 degrees C (+/-3.6 degrees F) at ends of ran Description 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. 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")