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A reliable and cost-effective digital temperature and humidity recorder for all industrial and commercial applications.

Memory: 32k
Temperature Range:
-29°C to +72°C / -20°F to +160°F
Humidity Range: 0% to 100%

CALL 800-858-6872


Download Product Brief:


The 2C\TEMP-RH multi-use data logger is a cost-effective solution for temperature monitoring of refrigerated vaccines, biological material, chemicals, pharmaceuticals and documenting the transportation of fruits and vegetables. This is a top-of-the-line data logger with 0.2°C midpoint temperature accuracy and resolution, and 3% midpoint humidity accuracy. It is a must-have device if you work in a laboratory or meterology department.

Functions include: The convenient palm-sized design has a digital display that provides real-time viewing of all temperature and humidity information including min/max temperature and current humidity values when running. One quick look provides instant product acceptance or “quarantine” decisions. The internal thermistor accurately records temperatures for user-programmable readings in Celsius, or Fahrenheit. The internal software is user-programmable and provides the following features: start time delay, sampling intervals, high and low alarm values, recording status, and measurement data.

Visual Alarms: All our data loggers have the ability to program alarm limits. Should the temperature reach levels outside these limits, the on-board red LED will light until reset by the user.

Computer Ready: Marathon’s easy-to-use MaxiThermal software is available for Microsoft Windows XP, Vista, 7, 8 & 10. Simply plug the unit into a standard USB port on your PC. The MaxiThermal software and USB cable are available as separate accessory items.

2c\temp-RH – SKU #7001
Logger Category, Description Category 1. Multi-Use. Relative Humidity data logger with LCD display.
Memory/Storage 32k memory (approximately 32,000 measurements)
Internal Sensor Nist-traceable Precision Thermistor
Range: -29°C to +72°C / -20°F to +162°F
Accuracy: ±0.2°C at 0° to 10°C, ±0.5°C at extremes / 0.36°F at 32° to 50°F, 0.9°F at extremes
Capacitive Cell Humidity sensor
Range: 0% to 100%
Accuracy: ±3% from 25% to 75%, ±5% at extremes
External Sensor/Probe count and connector type None
Alarm Programming User configurable. High and low alarm limits can be set.
Alarm Modes Exceed Limit. See Alarms for more information.
Alarm Reset Options Alarm is reset when logger is erased and reprogrammed. Audible alarm can be silenced with a long press of the start button.
Alarm Notifications On screen text, red LED flashes, and built-in audible alarm. See Alarms for more information.
Audible Alarm Yes, built-in
Display LCD
3.7cm(l) x 2cm(w) / 1.44in(l) x 0.8in(w)
Indicators On screen text, LED indicators: on/recording (green), alarm (red)
Size and Weight 9.0 cm(l) x 5.0 cm(w) x 2.8 cm (h) / 3.5 in.(l) x 1.96 in (w) x 1.1 in.(h)
85 grams / 3 oz.
CE Certified Yes
Water-resistant No
Internal Firmware, Internal Clock Accuracy Internal Clock, Start/Stop time, Interval, User description, Alarm values, Recording status, Firmware version, Serial number, Model.
Clock Accuracy is better than 2 minutes per month on average at normal temperatures (-29°C to +72°C).
For loggers directly exposed to temperatures at or below -80°C, the expected accuracy is ±15 minutes per month
Measurement Intervals Programmable from 2 seconds per reading. See Duration Chart for examples.
Computer Interface (physical) Mini-USB
Data Retrieval Method Download to PC using a compatible cable and software
Programming (Initialization) Method User Programmable through PC using a compatible cable and Marathon software
Wireless Connection and Range None
Remote Monitoring and Network Connection type None
Required Accessories: Compatible Software (1 required for operation): • Maxithermal
Computer Interface (1 required): • Standard A to Mini-B USB cable
Optional Accessories: Mounting Bracket
Included paperwork Quality Control sheet, NIST certificate, Packing List included with all purchases. See the Calibration page for more information.
Optional Paperwork Calibration Report including data included with purchase of Optional Calibration. See the Calibration page for more information.
Power Source, Battery Life and Replacement One 3.0 Volt Lithium coin cell battery with 1 year operating life and 3 year shelf life. See Battery Performance page for more information.
Batteries are changed as part of the recommended annual recalibration. For battery replacement only, Call for price.
Warranty 1 Year Limited Warranty

Specifications subject to change without prior notice.

MaxiThermal Software

Marathon’s MaxiThermal Software for USB Data Loggers

Marathon’s MaxiThermal Software allows you to view up to 8 multiple traces at one time, enables you to transfer the recorded information in your loggers to your computer, and to view, print and generate a report of the measurement data. The graphic representations are a simple X – Y plot of time versus temperature with unlimited zoom, or the exact time when it was recorded. The graph and all data points (date, time and temperature) can be printed, as well as the ability to add a user note to the summary for including information pertinent to that particular plot.
Users have the ability to view numeric data in a screen window and data can be exported as a CSV file for use in other software. Users can also create and print a Summary Information report showing the specific logger information, the Start and Stop Time, Duration of Recording, Measurement Interval, Highest, Lowest, Median and Average Temperatures as well as the High and Low Alarm information.
The data from the logger is easily downloaded to your PC via a standard USB 1.1 interface. MaxiThermal software is compatible with Windows XP, Vista, 7, 8 and 10.

USB Cable

USB Standard A to mini B Cable
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