Tz bt04 Bluetooth Temperature and Humidity Datalogger

 MODEL: TZ-BT04Nordic NRF51822 chipset long-lasting and reliable datalogger with precise measurement capacity. ; Both temperature and humidity measurement with the same product Possibility to easily follow all processes with its special application Transmission distance up to 55 meters! Dimensions and Weight - Weight 30 gr. ; Dimensions 50mm * 50mm * 16mm Features - Temperature measurement range -40? ~ +125? Humidity measuring range 0~100%RH Temperature measurement accuracy ±0.3?(0~60?),±0.3~0.7?(other ranges) Humidity measurement accuracy ±3%RH(20~80%),±4%(other ranges) Measurement refresh rate 2 sec, adjustable Data input 12000 temperature and humidity data storage Bluetooth Bluetooth 4.1 Output power -4dBm, adjustable Frequency range 2.400 - 2.4835GHz Battery CR2450, 620mAh / 3V Battery life Average 1.5 years, depending on usage;