Permanent data memory - 16000 points Wide measuring range, high accuracy for Temperature and Humidity Temperature measuring range: -30 C to +60 C; Humidity measuring range: 0 to 99%RH Data management software & USB cable included (Windows compatible) Data can be downloaded, analyzed, exported and printed Over Temperature Alarm & Upper/Lower Limits Specifications: 1. Temperature measuring range: -30℃~+60℃;external sensor(cable length 1.1m), -40℃~+85℃ 2. Temperature accuracy: -30℃~+60℃, ±0.6℃;others, ±1.2℃ 3. Temperature unit: ℃ or ℉ optional, set through RC-4H data management software 4. Humidity measuring range: 0~99%RH 5. Humidity accuracy: ±3%RH(25℃,20~90%RH),others,±5%RH 6. Resolution: Temperature 0.1℃;Humidity 0.1%RH 7. Record capacity: RC-4HC 16000points(MAX) 8. Record interval: 10s~24hour adjustable 9. Communication interface: USB interface 10. 2 kinds of Power supply: inner CR2450 battery or power supply via USB interface 11. Battery life: in normal temperature, if the record interval sets as 15 minutes, it could be used above one year 12. Ambient environmental temperature: -30℃~+60℃;in the low temperature environment, LCD displays slowly, while it has not an impact on the normal measuring nor recording. 13. The data logger display interfaces includes: temperature status, humidity status, record capacity, time, date, Max. temperature, Min. temperature, Max. humidity, Min. humidity 14. Product size: 84mm (length) X 44mm (width) X 20 mm (height) 15. Logger weight: 40g Package include: 1 Temperature logger (battery included) 1 External Sensor 1 USB cable 1 CD driver 1 User manual