Measurement Channel:  1Temperature and 1 Humidity Channel
External Temp. Sensor:  0 to 55°C
External Humidity Sensor:  10 to 95%RH
Measurement Display Resolution:  0.1°C/1%RH
Measurement Accuracy:  Avg±0.3°C ±5%RH (at 25°C and 50%RH)
Recording Interval:  1,2,5,10,15,20,30 seconds / 1,2,5,10,15,20,30,60 minutes Total of 15 choices (Excluding Event data)
Recording Capacity:  8,000 Readings x 2 Channel
Recording Mode:  Endless (Overwrite oldest data when capacity is full) / One-time (Stop recording when capacity is full)
LCD Display Items:  Current Readings / Recording Settings / Battery Life Warning / Over Measurement Range Warning / Amount of Recorded Data
Power:  Lithium Battery (LS14250(SAFT)) x 1 / L Series (Large Capacity Battery Pack) :Litium Battery (LS26500) x 1 / AC Adaptor (sold separately)
Battery Life:  Approx. 6 months / L Series: Approx 2 years and 6 months
Wireless Specifications:  ETSI EN 300-220 [ Frequency Range: 433.050 to 434.79MHz ], FCC Part15 Section249 / IC RSS-210 [ Frequency Range: 902 to 928MHz ]
Transmission Range:  Approx. 100m (May vary with conditions)
Dimensions:  H62mm x W 47mm x D19mm(D46.5mm:L Series)(excluding protrusions / antenna length 20mm)
Interface:  Wireless Communication / Optical Communication
Communication Speed:  When downloading data (Wireless) about 2,000 readings per minute [Collection of a full unit of data= about 420 seconds (optical communication= about 160 seconds)]
Water Resistance:  IP64 (rated for use in daily life)
Standard Sensor / Input Cable:  TR-3310 (length: Approx.1m)x 1
Unit Temp. Resistance:  -30 to 80°C ( Unit temp resistance and measurement range is -40 to 80°C but wireless communication cannot occur in an environment of less than -30°C )
Other:  In order to download data via wireless communication, it is necessary to purchase either an RTR-57U, RTR-5W, and/or RTR-50 unit. -For optical communication, TR-50C can also be used for all types of units.

RTR-53 (battery included)