Real-Time Temperature Data Loggers
ZLOG-20GTH-LI Reusable Real-Time Temperature & Humidity Data Logger
Reusable 4G real-time temperature & humidity data logger with multi-LBS location tracking, email & app alerts and cloud PDF reports. Two-year service life, -20°C to 70°C — built for pharma, vaccine and food cold chain logistics.
Specifications
- Screen Display
- Current/Max/Min/Avg temp, humidity, alarm status, signal, battery, open-box indicator
- Model
- ZLOG-20GTH-LI
- Device Type
- Reusable
- Detection Parameters
- Temperature, Humidity, Location
- Temperature Range
- -20°C ~ 70°C (-4°F ~ 158°F)
- Temperature Accuracy
- ±0.5°C @ -10~70°C; ±0.8°C @ -20~-10°C
- Humidity Range
- 0% ~ 100%RH
- Humidity Accuracy
- ±3%RH @ 20~80%RH; ±4%RH @ others
- Resolution
- 0.1°C / 0.1%RH
- Communication
- Global 4G Cat1 + 2G
- Positioning
- Multiple LBS Positioning
- SIM Card
- Embedded, global data roaming
- Logging Capacity
- 33,000 data points
- Battery
- 3000mAh lithium
- Battery Life
- 10-120 days (depends on report interval)
- Shelf Life
- 2 Years
- Protection Level
- IP64
- Interface
- Type-C (charging, PC communication, direct report output)
- Dimensions
- 100 × 62.5 × 23 mm
- Weight
- 112.5 g
- Certifications
- CE, UN38.3, RoHS, EN12830
The ZLOG-20GTH-LI is a reusable real-time data logger built for long-term cold chain monitoring across repeated shipments, warehouses and laboratory environments. It continuously measures temperature, humidity and location and reports live to the cloud platform over the global 4G Cat1 + 2G network — after each use, simply reconfigure and redeploy it, eliminating frequent replacements and cutting operating costs.Key Features
- Real-time visibility: temperature, humidity and multi-LBS location reported live to the cloud platform, with immediate email and app (Android & iOS) alerts the moment a threshold is breached.
- Fast, accurate sensing: independent sensing chamber with dual-side airflow, ±0.5°C accuracy from -10°C to 70°C, 0.1°C / 0.1%RH resolution.
- Two-year service life: 3000mAh lithium battery, 10-120 days of operation per charge (depending on report interval).
- No data loss, ever: 33,000-point on-device memory — if the network drops, data is stored locally and auto-uploads once reconnected.
- Reusable and reconfigurable: parameters, alarm thresholds and battery life adjustable remotely before each start-up; reports downloadable via Type-C or the cloud platform.
- Waterproof and rugged: ePTFE membrane, IP64 protection, compact 112.5 g housing.
Applications
- Pharmaceutical and vaccine storage and distribution
- Cold chain transportation and logistics
- Warehouse and cold storage monitoring
- Laboratory research and production process management
How It Works
- Configure parameters and alarm thresholds remotely via the cloud platform.
- Start the logger and place it in the shipment or monitoring environment.
- Monitor live data and alerts on cloud.loggernet.com or the LoggerNet app, and download PDF/CSV reports anytime.
Variants ZLOG-20GTHL-LI (light monitoring) and ZLOG-20GA-LI (shock monitoring) are scheduled for release in Q4 2026.
