Precision data logger for temperature and rel. humidity with internal sensors and power supply via PoE (Power over Ethernet). Network-compatible (LAN), power supply via batteries, USB interface and PoE (Power over Ethernet), for climate monitoring e.g. in laboratories, measuring rooms, EDP systems, switch cabinets, warehouses, museums, etc. Large data memory with 3.2 million measured values (memory content is retained even after battery change). Alarm indication (current or past) in the display for all measured variables. SmartGraph3 evaluation software with automatic measuring device management included (management of up to 255 measuring devices). Interfaces: USB and Ethernet (USB interface cable included in delivery). Scope of delivery: SmartGraph3 evaluation software, batteries, wall bracket, USB data cable, factory certificate according to DIN EN 10204/2.2 Optionally with traceable calibration certificate (DKD or ISO). Technical data Dimensions Length 166 mm, width 78 mm, depth 32mm Sampling interval 10/30s, 1/10/12/15/30min, 1/3/6/12/24h Storage interval 1/10/12/15/30min, 1/3/6/12/24h Design Housing plastic Operating time (battery) > 1 year Data memory 16 MB, 3,200,000 measured values LC display Size 90x64 mm Weight approx. 250g Included in delivery PC-Windows software SmartGraph 3, for graphical and numerical display of the measurement evaluation / operating instructions / data cable / battery / bracket, DIN rail interface USB, LAN Power supply 4 x LR6 AA Mignon, USB, (POE opt.) Permissible operating temperature -20...50°C Permissible rel. humidity 0...95% r.H. OPUS 20 THI PoE, data-collector for temperature/humidity datalogger