This is the perfect LogTag when you need to measure temperatures inside coolers, underwater or in small spaces. Great for monitoring internal temperatures of food.
Configure the Tag to use Push Button Start and there is no rush about getting the Tag from the Reader to the refrigerator. Logging will not begin until the Start button is pushed.
If the Tag logs temperatures outside the safe range you have set, the Alert LED will flash red, giving you a handy visual notification that there has been a problem.
The LogTag is so simple to set up and use that you'll be an expert in no time. We have a full LogTag training program on our site
LogTags are tough and versatile, bu there are some places they just can’t go.
In particular, when logging the temperature of liquids, you will need a probe. An example might be measuring the cooling rate of a large batch of custard.
Probes are also useful to monitor temperatures inside cooler and other containers without removing the lid.
Another use might be measuring soil temperatures. The probe is driven into the soil while the LogTag remains clean and protected above ground.
If you have any questions about whether LogTag is right for you, call us on 1300 30 33 34 or email firstname.lastname@example.org.
ST100B – Untipped
Bare sensor without stainless sheath ready for fitting to custom probe assembly.
Not rated for food contact or environmentally rated.
40mm tip length, ⌀3.2mm
65mm tip length, ⌀3.2mm
90mm tip length, ⌀3.2mm
30mm tip length, ⌀5mm
Available with 1.5m or 3m cable
140mm tip length, ⌀5mm
Handled with 105mm tip length, ⌀5mm
|External Sensor Measurement Range||-40°C to +99°C (-40°F to +210°F)|
|Operating Temperature Range||-40°C to +85°C (-40°F to +185°F).|
|Storage Temperature Range||-10°C to +55°C (14°F to +131°F).|
|Rated Temperature Reading Accuracy||Better than ±0.5°C for -10°C to +40°C. Better than ±0.7°C for -10°C to -30°C and +40°C to +60°C. Better than ±0.8°C for -30°C to -40°C and +60°C to +80°C. Better than ±1.0°C for +80°C to +99°C. Actual performance is typically much better than the rated values. Please see the Rated Absolute Accuracy chart below. Accuracy figures can be improved by recalibration.|
|Rated Temperature Reading Resolution||Less than 0.1°C for -40°C to +40°C. Less than 0.2°C for +40°C to +80°C. Less than 0.6°C for +80°C to +99°C. Please see the Rated Native Resolution chart below. LogTag Analyzer® currently displays to one decimal place of °C or °F. The native resolution is what is stored in the LogTag®.|
|Sensor Reaction Time||Typically less than 2 minutes (T90) in moving air (1m/s) for ST100T, ST100H and ST100S types.|
|Recording Capacity||8031 temperature readings. 53 days @ 10min logging, 80 days @ 15min logging.|
|Sampling Interval||Configurable from 30 seconds to several hours.|
|Logging Start Options||Push button start or specific date & time. Optional start delay of up to 18 hours.|
|Recording Indication||Flashing ‘OK’ indicator / flashing ‘ALERT’ indicator.|
|Download Time||Typically less than 5 seconds for full memory (8031 readings), depending on computer or readout device used.|
|Power Source||3V Li-Mg Battery.|
|Battery Life||2 – 3 years of normal use (based on 15 minute logging, download data monthly).|
|Real Time Clock||Built-in real time clock. Rated accuracy ±25ppm @ 25°C (equivalent to 2.5 seconds/day). Rated temperature coefficient is -0.034 ±0.006ppm/°C (I.e typically +/- 0.00294 seconds/day/°C).|
|Standard Remote Sensor Cable Length||Standard: 1.5m (4’11″). Extended: 3m (9’10″) (Recommended maximum).|
|Remote Sensor Cable Type||PTFE (FDA food contact rated), coaxial.|
|Size||86mm(H) x 54.5mm(W) x 8.6mm(T).|
|Weight||36g (without External Probe).|
|Compliance and Certifications|
To use this LogTag, you will need a USB interface and the LogTag Analyzer software installed on your PC.
This LogTag uses the same Reader as other LogTags, so if you already have one, it will work with these models.
If not, make sure you order one as well. As a bonus, we include the free Analyzer software on CD.
Your best bet for most situations.
This is by far our most popular model and, unless you have special requirements, your best bet for temperature logging.
Do you have MediSafe refrigerator from Quirks?
The battery in the LogTag supplied with your MediSafe refrigerator will last between two and four years, depending on your sample rate. The batteries are not replaceable, so when you see that your battery is low, you will need to order this replacement logger.
No Reader Interface Required
Only have a couple of sites to monitor? This logger has the USB built in so no external Reader is required
For extremely low temperatures – with no messy probes
This specialist LogTag will record temperatures as low as -80°C – the temperature of dry ice. You can place the logger directly in with your dry ice shipment (no need for a probe) to log temperatures across the journey.
The logger is reusable and will last up to 1,000 hours at -80°C.
See temperatures and alerts at a glance
Need to see temperatures and temperature events without connecting your logger to a computer? This latest LogTag has a clear display that tells you current temperature, maximum and minimum logged temperatures, alarms, and more.
Now with audible alarm
The new release of this popular logger features a new display layout, audible alarm and expanded 15,900 reading memory. Works with all LogTag external probes.
Upgrade the logger on your Quirks Medisafe refrigerator to this premium model with LCD Display and audible alarm. See current temperatures and alerts at a glance.
Log Relative Humidity
If you need to record Humidity as well as Temperature, this is the model for you. Works with the standard USB Reader.
Monitor Dry Ice containers without opening them
Insert the probe into your container and attach your LogTag Dry Ice temperature logger. The LED Alert will tell you at a glance if the temperature has risen above your limit.
Works with all LogTag external probes.
ABN 36 093 811 271
p: 1300 30 33 34
f: +61 2 9614 6891
PO Box 1007,
NSW 2153, Australia