Features: 100% Brand new and high quality This data logger can automatically measure and store up to a total of 32,000 groups temperature data, and the user can analyze the dew point data through software. Supporting analysis software DGraph enable users to set records, download data and do professional curve display and analysis easily. This set of software supports comparing and analyzing multiple data loggers simultaneously, allows users to customize the unit, supports user-defined data curve output. Users can set the record alarm values by DGraph, if the data is over the limit of the recorder, alarm is active through LED. This logger can be used as a portable measuring instrument when not in recording mode. Reliable, durable and cost-effective USB interface can be direct connected to the computer Ultra- portable design, easy to use With the powerful computer analysis software DGraph, users can easily install recording, download data and then display and analyze the data curve. Each logger has a unique serial number, so more than one logger can be compared and analyzed on the same curve interface Powerful custom units and custom curve function, easy access to a variety of output curve The user can enter a password to set data download limit User can choose recording starts immediately or delayed start button to start Long battery life and even if the battery runs out, the data will not get lost Support dew point data analysis Users can do two points calibration easily Users can set upper and lower limit of alarm values and alarm by LED Specifications: Color: Blue & black Measuring range: -35 to 80 C (-31 to 176 F) Accuracy (typical value): 0.3 C ( 0.5 F) 0.1C (0.2 F) Storage space 64KBytes, can store up to a total of 32,000 groups data Sampling rate: The user can set the sampling time from every 10 seconds to a maximum of every 12 hours Power: users can replace 1/2AA 3.6V high-energy lithium battery, 1200mAh Host shell material: ABS, TPU, PC Dimensions:approx. 120mm * 35mm * 30mm/4.7" 1.4" 1.2" Package Includes: 1 x Data Logger 1 x CD 2 x Screws