Agriculture
June 23, 2024
Nexleaf StoveTrace
Read SolutionImplemented by
Nexleaf
Updated on June 24, 2024
·Created on October 8, 2018
Wireless remote temperature monitoring solution designed for vaccine refrigerators.
ColdTrace is a wireless remote temperature monitoring (RTM) solution that uses temperature sensor probe(s) for vaccine refrigerators. It collects data and generates analytics and reports. It also has an SMS alert system to inform when vaccines are in danger.
The manufacturer is Nexleaf, a company headquartered in Los Angeles, CA.
Target SDGs
SDG 3: Good Health and Well-Being
SDG 5: Gender Equality
Market Suggested Retail Price
$77.00
Target Users (Target Impact Group)
Small and Medium-sized Enterprises, Public Sector Agencies, NGOs
Distributors / Implementing Organizations
Ministries of Health, local organizations, NGOs and development agencies
Competitive Landscape
Direct competitors include Coolar, 3rd Stone Design Stone Cold Solar, Sure Chill Vaccine Refrigerator BLF100 DC, Vaccine Refrigerator BFRV55, and Arktek Passive Vaccine Storage Device.
Manufacturing/Building Method
Manufactured in IndiaInterview with company representative
Intellectural Property Type
Select Type
User Provision Model
Distributed through National Health Systems, local organizations, NGOs and development agencies
Distributions to Date Status
14,204 devices across 10 countries, including: 29 health facilities in Mozambique 50 clinics in Kenya and 10 in Ethiopia 13,000 devices in India Introduced in Tanzania for national scale
Power requirement (mA)
Li-ion rechargeable and replaceable battery
The device has a 750 mA battery. It takes a 5 V DC input. Interview with company representative
Depending on the network quality, sampling configuration, and transmission configuration, the device can run anywhere from 2 to 5 days without power. Interview with company representative
Manufacturer can also provide the device with an adapter to work directly from small solar panels or existing solar systems. Interview with company representative
Processing platform
SELV (information management system built on the OpenLMIS platform).
Remote Sensor Calibration (Y/N)
Unknown
Reporting modalities (wifi/ cellular network/other)
Cellular network (GPRS and SMS)
Sampling rates (Hz)
Minimum: 1/60 Hz (1 minute)
Sensor type(s)
Temperature sensor (-30ºC to 55ºC, 0.5ºC accuracy)
Design Specifications
Technical Support
Trained local ColdTrace technicians
Nexleaf provides remote and in-person technical support in addition to warranty services for replacement components. When organizations implement projects with the device, Nexleaf provides customer service and training on the device, dashboard use, and troubleshooting.Interview with company representative
Replacement Components
Replacement components such as batteries and sensors are provided to customers upon request.Interview with company representative
Lifecycle
The expected lifetime of the device is 5 years. The estimated lifetime of the replaceable battery is 2 years. They offer a 3-year warranty on the device (excluding accessories).Interview with company representative
Manufacturer Specified Performance Parameters
Real-time temperature data provided by ColdTrace can be used to:
Vetted Performance Status
Results of an RCT analysis using RTM monitoring, 30DTR and stem thermometers: RTM monitoring (ColdTrace) achieved the highest total uptime. RTM monitoring also had the shortest facility average for total time spent in ColdTrace cold alert and WHO freeze alarm states. Group 1 also spent the lowest percent of total time in WHO freeze alarm state: 0.55% versus 1.9% for 30DTR and 2.3% for stem thermometers.4
Safety
ColdTrace received Performance, Quality and Safety certification on July 20th, 2016 from the World Health Organization (WHO) and is now listed in the WHO’s PQS Catalogue as number E006/039.
Complementary Technical Systems
Dashboard features include equipment performance and power availability summary reports on any device. Alerts for each sensor can be configured remotely, allowing one ColdTrace5 unit to monitor up to 5 CCE per site. Multiple users can access the dashboard without any software installation.
Academic Research and References
Bragazzi, N., Gianfredi, V., Villarini, M., Rosselli, R., Nasr, A., Hussein, A., Martini, M., Behzadifar, M., 2018, Vaccines Meet Big Data: State-of-the-Art and Future Prospects. From the Classical 3Is (“Isolate–Inactivate–Inject”) Vaccinology 1.0 to Vaccinology 3.0, Vaccinomics, and Beyond: A Historical Overview, Frontiers in Public Health, 6(62).
Falk, S., Mathew, G., 2017, Technology for Good: Innovative Uses of Emerging Technologies to Address Social Challenges, Digital Government, pp. 39-62.
Biggs, P., Garrity, J., LaSalle, C., Polornska, A., Dr. Pepper. R., 2015, Harnessing the Internet of Things for Global, ITU, CISCO
Nexleaf Analytics, “RTM Increases Uptime and Decreases Freezing Duration in Vaccine Refrigerators: A Randomized Control Trial Analysis”
Nexleaf Analytics, “2017 annual report”
Indiegogo, “ColdTrace: Wireless Vaccine Monitoring“
Compliance with regulations
ColdTrace received Performance, Quality and Safety certification on July 20th, 2016 from the World Health Organization (WHO) and is now listed in the WHO’s PQS Catalogue as number E006/039. ISO 9001:2008 The device has also undergone calibration and accuracy testing in an ISO/IEC 17025:2005 accredited laboratory and is CE marked.Interview with company representative
Evaluation methods
Randomized Control Trials to evaluate uptime, which is the time spent between 2° C and 8° C
Other Information
Nexleaf Analytics: RTM Increases Uptime and Decreases Freezing Duration in Vaccine Refrigerators: A Randomized Control Trial Analysis.
Nexleaf Analytics (2017): ColdTrace: Real-time data for Immunization and Beyond.
Nexleaf Analytics (2015): ColdTrace Year One: Feedback from the Field.
Sheets M. (2014): Vaccine Refrigeration & Thermal Stability. Topics in Bioengineering
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