TR-73U

Specifications
Measurement Channel:  3 Channel
Measurement Item: Temperature/Humidity/Barometric Pressure
Internal Temperature Sensor:  -10 to 60°C
Internal Barometric Pressure Sensor:  750 to 1100 hPa
External Temperature Sensor:  0 to 50°C
External Humidity Sensor:  10 to 95%RH
Option Sensor:  -40 to 110°C
Temperature Measurement Accuracy (Standard Sensor):  Average ±0.3°C(0 to 50°C)
Humidity Measurement Accuracy (Standard Sensor):  ±5%RH (At 25°C 50%RH)
Barometric Pressure Measurement Accuracy:  ±1.5hPa
Temperature Measurement Resolution Display:  0.1°C
Humidity Measurement Resolution Display:  1%RH
Barometric Pressure Measurement Resolution Display:  0.1hPa
Temperature Sensor:  Thermistor
Humidity Sensor:  Macromolecular Humidity Sensor
Barometric Sensor:  Barometric Pressure Sensor
Recording Interval:  1, 2, 5, 10, 15, 20, 30 Seconds, 1, 2, 5, 10, 15, 20, 30, 60 Minutes / Total of 15 choices
Recording Capacity:  8,000 Readings x 3 Channels
Recording Method:  Endless (Overwrite from the oldest data when recording capacity is full) One time Method (Stop recording when recording capacity is full)
LCD Display:  Measurements (Ch1 only, Ch2 only, Ch3 only,alternating display), Recording Status,Battery Life Warning, Amount of Recorded Data, Unit of Measurement
Battery:  AA Alkaline battery (LR6)
Battery Life:  About 10 month
Data Back-up:  Activated when battery power is low or when switch is off (about 1 year)
Interface:  USB Communication Cable
USB Communication time:  When downloading (1 unit of full data-about 11 seconds)
Dimensions:  H55mm x W78mm x D18mm
Weight:  About 62g (Including AA alkaline batteries)
Working Environment for Main Unit:  Temperature: -10 to 60°C Humidity: under 90%RH (without condensation)
Attached Sensors:  TR-3100 x 1