Logmore QR data loggers are designed to suit different monitoring needs and they come in different models:
- Logmore One
- Logmore Two
- Logmore Three
- Logmore Three E, with external probe
- Logmore Dry Ice, with external probe
Specifications for all models
All Logmore QR data loggers have the following technical specifications:
- Water proof up to 30 min immersion over 1m (IP 67 protected)
Operating temperature
- Logging -40°C … +60°C
- Logging with external probe -50 °C ... +150 °C or -100 °C ... +118 °C
- Screen update 2°C … +48°C
Size and weight
- 47.9 mm × 45.4 mm × 6.1 mm
- 16g, 18g, or 23g based on model
Always calibrated: Calibration certification accessible at Logmore Cloud for each logger.
See also
Battery
- Battery type CR2320 Lithium.
- Battery statement for airfreight
See
Logmore One
Logmore QR data logger model One is the basic model for one-way usage such as pharmaceutical deliveries.
Specifications: Logmore One
Specification | Tags | Note |
---|---|---|
Storage | 12 000* measurements | *Exact amount varies based on selected measurement resolution settings |
Sensors | - Temperature
- Ambient Light | |
Battery life | Up to 3* months on a 15 min measuring interval | *Additional operations, such as repeating configuring of the logger, may shorten the battery life |
Size | 47.9 mm × 45.4 mm × 6.1 mm | |
Weight | 16g | |
Sensor Specs | - Temperature: Abs. accuracy ±0.5ºC Resolution: 0.1ºC
- Ambient Light: relative usage only | With larger volumes, the resolution can be configured to match the requirements of use case. |
Default resolution: Temperature (internal)
Range | Resolution |
---|---|
30.0 °C to -15.0 °C | 1.0 °C |
15.0 °C to -2.0 °C | 0.5 °C |
2.0 °C to +27.0 °C | 0.2 °C |
+27.0 °C to +43.0 °C | 0.5 °C |
+43.0 °C to +80.0 °C | 1.0 °C |
Logmore Two
Logmore QR data logger model Two is designed for long-term temperature monitoring.
Specifications: Logmore Two
Specification | Tags | Note |
---|---|---|
Storage | 20 000* measurements | *Exact amount varies based on selected measurement resolution settings |
Sensors | - Temperature
- Ambient light | |
Battery life | - Up to 4* years on a 15 min measuring interval
- Up to 10* years on manual screen refresh | *Additional operations, such as repeating configuring of the logger, may shorten the battery life |
Size | 47.9 mm × 45.4 mm × 6.1 mm | |
Weight | 16g | |
Sensor Specs | - Temperature: Abs. accuracy ±0.5ºC Resolution: 0.1ºC
- Ambient Light: relative usage only | With larger volumes, the resolution can be configured to match the requirements of use case. |
Logmore Three
Logmore QR data logger model Three is fully loaded with all sensors, making it suitable for a wide variety of uses. Sensor use can be tailored to match specific needs.
Specifications: Logmore Three
Specification | Tags | Note |
---|---|---|
Storage | 20 000* measurements | *Exact amount varies based on selected measurement resolution settings |
Sensors | - Temperature
- Humidity
- Shocks
- Tilt
- Ambient light | |
Battery life | - Up to 4* years on a 15 min measuring interval
- Up to 10* years on manual screen refresh | *Additional operations, such as repeating configuring of the logger, may shorten the battery life |
Size | 47.9 mm × 45.4 mm × 6.1 mm | |
Weight | 16g | |
Sensor Specs | - Temperature: Abs. accuracy ±0.5ºC Resolution: 0.1ºC
- Ambient Light: relative usage only
- Humidity: Abs. accuracy ±4 % relative humidity Resolution: 1 % RH
- Shocks: XYZ+-16g & +-50g
- Orientation: XYZ +-360' | With larger volumes, the resolution can be configured to match the requirements of use case. |
Model Three shock detection
The Logmore model Three logger uses an acceleration sensor for shock detection. Here are the designated axes for shock directions:

Shock recognition thresholds
It is possible to set a shock recognition threshold for each axis (X, Y, Z). The possible threshold can be adjusted by 0.125g steps between 2g and 16g. The model uses an acceleration sensor for shock detection. (Range 2 ... 16g in 0.125g steps)
After an impact surpasxsing the set threshold is detected, the QR tag's acceleration sensor activates for a 5 second period. During this activation period the sensor measures impacts. The highest recognized value is then saved.
The value will be saved either as only the total highest G-force or the exact values from each three axis during the activation period, depending on the tag settings. All of the saved measurements include a timestamp.
Note: if the hit is not direct on the monitored axis, it must be greater than the threshold more angle there is.
Logmore Three E
Logmore QR data logger model Three E comes with and additional temperature sensor attached to a cable, being able to measure both internal and external temperatures.
ℹ️ It is possible to include humidity, shock, tilt and/or light sensors to Logmore Three E model, please contact our team if you are interested.
Specifications: Logmore Three E
Specification | Tags | Note |
---|---|---|
Storage | 20 000* measurements | *Exact amount varies based on selected measurement resolution settings |
Sensors | - Temperature (internal)
- Temperature via probe (external) | |
Battery life | - Up to 4* years on a 15 min measuring interval
- Up to 10* years on manual screen refresh | *Additional operations, such as repeating configuring of the logger, may shorten the battery life |
Size | 47.9 mm × 45.4 mm × 6.1 mm | |
Weight | 18g | |
Sensor Specs | - Temperature: Abs. accuracy ±0.5ºC Resolution: 0.1ºC
- External temperature: Abs. accuracy ±0.5ºC Resolution: 0.1ºC | With larger volumes, the resolution can be configured to match the requirements of use case. |
External probe | - Probe default: 50 mm long, 4 mm diameter*
- Cable default: 50cm long flat* | * Customisations available. |
Calibration | Optional NIST traceable 3-point calibration available at request. |
Logmore Dry Ice
Logmore Dry Ice data logger comes with and additional temperature sensor attached to a cable, being able to operate in extreme cold conditions.
ℹ️ It is possible to include humidity, shock, tilt and/or light sensors to Logmore Dry Ice, please contact our team if you are interested.
Specifications: Logmore Dry Ice
Specification | Tags | Note |
---|---|---|
Storage | 20 000* measurements | *Exact amount varies based on selected measurement resolution settings |
Sensors | - Temperature (internal)
- Temperature via probe (external) | |
Battery life | - Up to 4* years on a 15 min measuring interval
- Up to 10* years on manual screen refresh | *Additional operations, such as repeating configuring of the logger, may shorten the battery life |
Size | 47.9 mm × 45.4 mm × 6.1 mm | |
Weight | 23g | |
Sensor Specs | - Temperature: Abs. accuracy ±0.5ºC Resolution: 0.1ºC
- External temperature: Abs. accuracy ±0.5ºC Resolution: 0.1ºC | With larger volumes, the resolution can be configured to match the requirements of use case. |
External probe | - Probe default: 50 mm long, 4 mm diameter*
- Cable default: 65cm long flat* | * Customisations available. |
Calibration | Optional NIST traceable 3-point calibration available at request. |
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