CSL-T0.5 Temperature Logger

The CSL-T0.5 temperature logger offers highly accurate temperature measurements at an affordable price. The device uses small-footprint thermistors, ensuring superior accuracy and fast response times. Each unit is carefully calibrated and rigorously tested in various harsh environments. The CSL-T0.5 operates reliably in extreme weather conditions (-40 to +70 °C), recording and saving data on its internal memory for later analysis. When connected to a CredoSense Display Unit, it provides real-time monitoring of temperature and relative humidity.

Versatile Design

The CSL-T0.5 temperature logger is thin and lightweight, built with industry-grade materials to withstand strong forces, such as the weight of a bear in the forest or a car driving over it. You can easily hang the device with a zip tie from a pole or a tree branch to get your readings. Although finding the logger can be challenging, especially in dense forests full of fallen leaves or green agricultural fields, the bright color of the CSL-T0.5 makes it easier to locate.

⁠Thermal Isolation from Internal Circuitry for Enhanced Accuracy

Every circuit board in a temperature logger generates heat during operation, which can significantly affect sensor readings. Many temperature loggers on the market overlook this issue in their designs. However, in the CSL-T0.5 temperature logger, we have carefully positioned the sensor (Figure 1) to minimize the impact of internal heat on sensor readings. Consequently, this ensures more accurate and reliable data.

Figure 1: Showing minimal thermal impact on the sensors

Easy Setup and Data Management

Setting up the CSL-T0.5 temperature logger is straightforward. First, connect the device to a reader (CreDock, sold separately), then connect the CreDock to your computer. Next, open CredoWare, our free downloadable software, and click the ‘Connect’ button on the user interface. CredoWare is compatible with macOS, Windows, or Linux and allows users to configure the device and access the logger data. The user interface enables you to:

• Set device name
• Set logging intervals
• Configure time and date settings
• Set start/stop mode
• Set high/low alarm limits
• Monitor real-time data
• Download and view time-stamped temperature data
• Generate PDF reports

Designed to Last

The CSL-T0.5 temperature logger uses commonly available CR2450 batteries, which are replaceable via a dedicated battery port, allowing for multiple uses of the logger. We recommend using high-quality brand batteries such as Renata CR2450N (-40 to +85°C), Energizer (-30 to +60°C), Murata (-20 to +60°C), and Panasonic (-30 to +60°C) to ensure optimal performance. Moreover, a good-quality battery will typically provide the battery life shown in Table 1.

Checking the battery’s specifications during purchase is also important because the CSL-T0.5 temperature logger can only operate within the operating range of the batteries. For example, if the CSL-T0.5 operates within the range of -40 to 70 °C but you have chosen a battery that only operates up to -20 °C, the temperature logger will stop working when the temperature goes below -20 °C and will show a low-battery status for a while. Therefore, select a battery that aligns with the temperature logger’s operating temperature range.

Table 1: Battery life of CSL-T0.5 at different logging intervals

Versatile LED Indicators and Alarms

The CSL-T0.5 temperature logger features an RGB LED that changes color based on the device’s status and readings.

• Alarm Status: It blinks green every 60 seconds when measuring temperatures within the alarm limits (if the alarm is on). It flashes red every 60 seconds when the temperature exceeds the upper alarm limit, and it blinks blue every 60 seconds when the temperature falls below the lower alarm limit. To conserve battery life, the LED alarm can be turned off using CredoWare.
• Operational Status: You can also check the device status by pressing the START/STOP button once. The LED indicator will display:
  • Green: The device is operational.
  • Red:
    • The device is not operational.
    • Low-battery—try to start logging, and if it does not start, it indicates a low-battery status.

This system ensures that you can easily monitor the status and functionality of your temperature logger.

Ideal for Accurate Temperature Monitoring

The CSL-T0.5 temperature logger boasts a measurement accuracy of ±0.5 °C. For a wide range of temperatures, it maintains an accuracy of up to ±0.1 °C, which is impressive given its cost-effectiveness. Figure 2 shows the accuracy graph for the CSL-T0.5 temperature logger, illustrating its reliable performance across various temperatures.

Figure 2: The accuracy of CSL-T0.5 at different temperatures

Applications of  Temperature Logger

Research

• Weather Forecasting and Microclimate Analysis: Provides precise data for predicting weather patterns and analyzing local climate conditions.
• Soil Temperature Profiles: Tracks soil temperature variations to inform agricultural practices and soil health studies.
• Habitat Monitoring: Observes temperature conditions in habitats of various species to understand their environmental needs.
• Plant Growth Studies: Monitors temperature variations to study their impact on plant growth, seed germination, and development.
• Insect Behavior Research: Examines how temperature influences insect behavior and population dynamics.
• Urban Heat Island Effect: Tracks temperature changes in urban areas to study heat accumulation and its effects.
• Animal Burrows and Nests: Monitors temperature conditions in animal habitats to understand living conditions.
• Mountain Ecology: Measures temperatures in high-altitude environments to study mountain ecosystems.
• Building Materials Analysis: Assesses thermal properties of materials to improve energy efficiency in construction.
• Crop Disease Research: Studies the effect of temperature on the development of crop diseases.
• Conservation Research: Measures temperatures in artificial habitats to aid in conservation efforts.

Pharmaceutical Industry

• Vaccine Storage: Monitors temperatures during the storage of vaccines to ensure they remain within required temperature ranges, maintaining their efficacy.
• Clinical Trials: Tracks temperature conditions during clinical trials to ensure the stability and reliability of trial samples.
• Blood Products and Plasma: Ensures that blood products and plasma are stored and transported at optimal temperatures to preserve their quality and usability.
• API and Raw Material Storage: Tracks temperatures of active pharmaceutical ingredients (APIs) and raw materials to maintain their stability and prevent contamination.
• Finished Product Storage: Monitors the storage conditions of finished pharmaceutical products to ensure they meet regulatory standards and maintain efficacy.
• Quality Control: Assists in quality control processes by ensuring that all temperature-sensitive products are maintained at proper conditions throughout their lifecycle.
• Regulatory Compliance: Helps meet regulatory requirements for temperature monitoring in the pharmaceutical industry, ensuring compliance with standards such as GMP (Good Manufacturing Practices) and GDP (Good Distribution Practices).
• Cold Room Monitoring: Provides continuous monitoring of cold rooms and storage facilities to ensure consistent temperature control.
• Audit Trails: Offers detailed temperature logging for audit trails, supporting regulatory compliance and quality assurance.
• Temperature Mapping: Conducts detailed temperature mapping of storage and transportation environments to identify and address potential hotspots and cold spots.
• Distribution Centers: Ensures that pharmaceutical distribution centers maintain consistent temperature conditions to protect product integrity.

Food Industry

• Cold Storage Monitoring: Ensures that refrigerated and frozen storage facilities maintain consistent temperatures to prevent spoilage and ensure food safety.
• Quality Control in Processing: Monitors temperature conditions during food processing to ensure products are processed at safe and optimal temperatures, maintaining quality and compliance with safety standards.
• HACCP Compliance: Helps meet Hazard Analysis and Critical Control Points (HACCP) requirements by providing accurate temperature records for critical control points in food production and storage.
• Shelf Life Studies: Assists in studying the impact of temperature on the shelf life of various food products, helping to optimize storage conditions and extend product longevity.
• Fruit and Vegetable Storage: Monitors temperatures in storage facilities for fruits and vegetables to maintain freshness and prevent spoilage.
• Temperature Mapping: Provides detailed temperature mapping of storage and processing areas to identify hotspots and ensure uniform temperature control.
• Regulatory Compliance: Assists in meeting regulatory requirements for temperature monitoring in the food industry, ensuring compliance with safety and quality standards.

Cold-chain and Logistics

• Vaccine and Pharmaceutical Transport: Monitors temperatures to ensure vaccines and medications are stored and transported within safe temperature ranges, maintaining their efficacy.
• Food Safety: Tracks temperatures during the storage and transportation of perishable goods to prevent spoilage and ensure food safety.
• Blood Plasma and Biological Samples: Ensures that blood plasma and other biological samples are kept at optimal temperatures during transit, preserving their quality.
• Temperature-Sensitive Chemicals: Monitors the transport conditions of chemicals that require specific temperature ranges to remain stable and effective.
• Frozen Food Logistics: Ensures frozen food products are kept at required temperatures to prevent thawing and maintain quality.
• Cold-Chain Compliance: Helps companies comply with regulations and standards for the transportation of temperature-sensitive goods by providing accurate temperature records.

The CSL-T0.5 is ideal for applications that require better temperature monitoring at an affordable cost. For your application needs, please consult the product manual and application notes. If you do not find what you are particularly looking for, you will always find us at support@credosense.com.

• Small footprint sensors for high accuracy
• Software programmable high/low temperature alarm (LED indicator)
• Dedicated port for battery replacement
• Water-resistant casing
• Thin and lightweight
• No external wiring and ready-to-use out-of-the-box.
• START/STOP button

• Accuracy: minimum ± 0.5 °C (range: ± 0.1 to 0.5 °C)
• Measurement Range: -40 to + 70 °C
• Resolution: 12-bit (0.03 °C)
• Maximum Sampling Rate: 60 s (software programmable to different rate)
• Battery Life: 19 months of operation (@ 30-minute logging interval with alarm off)
• Dimensions: 20 mm X 55 mm X 47 mm

CredoWare:

V2.0.0 (Mac): July 16, 2022
V2.0.0 (Windows): July 16, 2022

Brochure:

V2.2: July 20, 2022

Quick Guide:

V1.1: September 6, 2021

Product Manual/Detailed Guide:

V1.2.3: November 14, 2022

Certification:

CE: July 29, 2021
FCC: July 29, 2021