The VFC800-USB Temperature Recorder measures and stores up to a total 32,000 temperature readings, 16,000 readings per channel. The logger supports the ST100 and SP-800 probes and can be used on one or both channels if required. Hot Swappable Smart Probe(s), eliminate the need to disconnect and send in your data logger. Download data via CS VTMC or as a PDF via USB. View current temperature and latest Min-Max temperature at a glance. Check and reset Min-Max temperature readings at any time. Audible alarm and flashing red LED signals a temperature excursion. View alarm status for up to 30 days at a glance. Powered via a standard plug-in power adaptor and a USB cable. Backup power provided by 2x AAA batteries (user replaceable). Data Logger With Smart Probe Key Features: Hot-swappable smart probe eliminates data logger disconnection. Downloads data via CS VTMC or USB PDF. Displays current, min-max temperatures, 30-day alarm status. Audible alarm, LED signals temperature excursions, user-resettable. Stores 32,000 readings, supports ST100/SP-800 probes. Specifications: Part Number VFC800-USB VFC800-USB-2 Brand LogTag Weight 1.75 lbs Dimensions 3.5 × 8.5 × 9 in Number Of Probes Dual channel with dual 10 ft Probes, Single channel with 10ft Probe, Single channel with 5ft Probe, Calibrated 10ft Smart Probe, Calibrated 5ft Smart Probe Accuracy Calibrated accuracy of ±0.3 Deg C from +99 to -40°C. Alarming Audible and visual alarm for out-of-range temperatures. E-mail and Text notifications with cloud service Connectivity USB Function Monitoring, Temperature, Vaccine Temperature Range -40°C to 0°C, 0°C to 40°C, 40°C to 80°C, Above 80°C Capabilities Temperature, Vaccines, VFC Compliant Recording Capacity Memory storage of 16,129 readings. Logging Rate User programmable logging rate from every 30 seconds to 18 hours. Remote Probe Removable remote smart probe mounted in a shatter proof bottle in glycol solution. Sensor Cable Length Standard 5' long. Download time Typically less than 10 seconds. Battery life Typically 12 months of standard operation (CR2032). AAA battery also up to 2 months. Power Source 5V via micro USB socket or, 2 x 1.5V AAA alkaline batteries. CR2032 LiMg coin cell (backup logging function and smart probe only). Connection Interface USB 2.0 / Micro USB Socket. IEEE802.11 / WPA/WPA2 Security