Record Temperature and Humidity Simultaneously Data

Hioki compact 1 or 2-channel data loggers feature a 60,000 data
set/channel memory to measure temperature, humidity, voltage or
instrumentation signals. The LR5001 logs temperature and humidity
over 2 channels in as fast as 1 second intervals.

Model No. (Order Code)

LR5001 Temperature / Humidity each 1ch

Note: Communication Adapter LR5091 or Data Collector LR5092-20
is necessary to transfer data from a LR5000 series Logger
to a PC

Key Features

• Easily mount the light-weight , pocket-sized loggers in tight spaces
• Easy-to-see dual display
• Transfer data to PC even during recording
• Replace batteries while recording (30 second limit)
Note: Recording is interrupted during battery replacement if the battery is very weak. After batteries are replaced, recording resumes automatically. Previously recorded data is not lost during battery replacement.
• 7 times the memory capacity than predecessor (Record 60,000 data per channel)
• Record without missing fluctuations in STAT mode
• Measurement data is preserved even after the battery dies
• Worry-free backup preserves recorded data even if a new measurement is started by mistake


Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

Measurement items Temperature 1 ch and Humidity 1 ch (Requires included or optional humidity sensor)
Measurement range Temperature: -40.0 to 85.0 °C, Humidity: 0 to 100 % rh *at sensor environment
Basic accuracy [Temperature] : ±0.5 °C (main unit + sensor accuracy, at 0.0 to 35.0 °C)
[Humidity] : ±5 % rh (main unit + temperature / humidity sensor LR950x combination, at 20 to 30 °C / 10 to 50 % rh)
Note: Basic accuracy is typical value, refer to the detailed catalog
Storage capacity Instantaneous value mode: 60,000 data/ch, Statistical value mode: 15,000 data/ch
Recording interval 1 to 30 sec., 1 to 60 min., 15 selections
Recording modes Instantaneous recording: at every recording interval
Statistical value recording: Measure at one second intervals, and record the instantaneous, maximum, minimum, and average values within every recording interval
Recording methods One-time recording: Stop recording when the memory capacity is full
Endless recording: Continue recording even when the memory capacity is full (old data is overwritten)
Start: Logger button operation or scheduled time
Stop: Logger button operation or scheduled time, or auto-stop when the memory capacity is full (at one-time recording)
Other functions Always backs up last recorded data; backs up recorded data and setting conditions when battery power is low
Note: After batteries are replaced within 30 seconds, recording resumes automatically (Recording is interrupted during battery replacement)
Waterproof and dust-proof IP54 (EN60529) (with sensor connected, but not including sensor tip)
Interfaces Infrared optical communications with LR5091, LR5092-20
Power supply LR6 (AA) Alkaline battery × 1, Battery life: Approx. 3 months (Instantaneous recording, with 1-minute interval and auto power saving, at 20 °C), Approx. 20 days (Instantaneous recording, with 1-second interval at 20 °C)
Dimensions and mass 79 mm (3.11 in) W × 57 mm (2.246 in) H × 28 mm (1.10 in) D, 105 g (3.7 oz)
Accessories LR6 (AA) Alkaline battery (built-in internal) × 1, Humidity Sensor LR9504 × 1, Instruction manual × 1, Operation guide × 1, Kickstand × 1
Catalog: DATA LOGGER LR5000 Series Download PDF  [6MB] English
Catalog: DATA LOGGER Selection Guide LR8431, LR8400 series, 8423, LR5000 series Download PDF  [5MB] English

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