Relative Humidity/Temperature Datalogger from Oakton Instruments

Relative Humidity/Temperature Datalogger

Automatically log humidity and temperature (°C or °F) readings for months, then download data to your computer or printer.


Memory holds up to 16000 readings
Display shows current conditions; switch to min/max values by day(s)/hours(s) with a button press
Built-in infrared (IRDA) transmitter sends data to optional IR printer
Selectable sampling rate from once per 10 seconds to once per 2 hours
Display flashes if alarm set point limits are exceeded
Use optional external sensors to display and log additional external readings.

The RH/TempLog let you effortlessly track temperature and humidity data for months! It’s ideal for shipping or storage, laboratories, factories, cold rooms, greenhouses and more. The compact splashproof housing is perfect for busy or rugged areas.

Software lets you set sampling rate and create graphs. It also lets you customize logging parameters: set the logging interval, select delayed or immediate start, set alarm limits, set to overwrite data or stop when full, and more. Software package is required for use with loggers; order separately.

Logger also has an external sensor input for an additional sensor. Use the stainless steel temperature sensor to measure remote temperature in air, liquids, soil,and more. Current, voltage, and contact sensors can be scaled to match range and units of your transmitter, controller or instrument output. Each sensor includes 8.2 ft cable.

Click below to download Acrobat (.pdf) file of:
Relative,Humidity,Temperature,Datalogger,Oakton,Instruments RH/TempLog Datalogger Product Bulletin
Relative,Humidity,Temperature,Datalogger,Oakton,Instruments RH/Templog Datalogger Manual

Temperature: -30 to 50C (-22 to 122F)
Humidity: 0 to 100% RH
Temperature: 0.5C (1F)
Humidity: 0.5%
Temperature: 0.6C (1.1F)
Humidity: ±3% up to 90% RH; ±6% above 90% RH
stores up to 16,000 measurements
Output Infrared
IRDA (infrared data association) interface to printer or computer with IRDA port
Output RS-232
cable connection to computer (order cable/software package separately)
Sampling Rate
selectable via software from once per 10 seconds to once per 2 hours
required to download readings to a computer and to set samping rage. Software can be used with multiple loggers. Windows 3x and Windows 95/98/NT compatible
two digit LCD, 3/8"H, with mode indicators
IP60 rated
External Sensor
optional general purpose temperature SS probe
internal lithium battery, 3.6 V TL5101
2.8" dia x 0.9"D (7.2 cm dia x 2.3 cm D)
Weight (unit only)
0.2 lb (0.1 kg)