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Our new USB Data Loggers are a cost effective solution for logging temperature and humidity data just about anywhere. With built-in alarm LEDs you’ll know before you download that there has been a danger condition. Set the logging interval and the start time from the PC software and it’s that easy. There are no cables, cradles, or dongles to keep track of.
NEW LCD Display Logger
Keep visual track of your data with our new LCD datalogger for temperature and humidity. Its high contrast LCD shows Min, Max and current readings for both parameters. The display can be shut down during the log to extend battery life while allowing the user to periodically view the displayed readings.
Connect an External Probe
Connect any type K thermocouple to our TW-USB-TC logger and record temperatures to 2000°F depending on the probe selected. Log temperatures in ovens, freezers, and industrial equipment with one of our high temperature thermocouples.
Log in Real-Time
Select our TW-USB-RT and measure temperature directly to your PC in real time. Store up to 7 days of data with user programmable alarm thresholds for both temperature and humidity. The Windows software can send email and text alerts and alert audibly via the PC’s internal speaker.
Waterproof Applications
With an IP 67 rating, our TW-USB-1 and TW-USB-2 loggers are water resistant and can log in the harshest environments. Store up to 16,382 readings at temperatures to 176°F.
| Specifications |
TW-USB-LITE
|
TW-USB-1
|
TW-USB-2
|
TW-USB-RT
|
TW-USB-TC
|
TW-USB-2-LCD
|
| Input: |
Temperature |
Temperature |
Temperature, Humidity, Dewpoint |
Temperature, Humidity, Dewpoint |
Temperature: K, J, or
T Type Thermocouple |
Temperature, Humidity, Dewpoint |
| Operating Range: |
+14°F to 122°F
(-10°C to 50°C) |
-31°F to 176°F
(-35°C to 80°C) |
Temp: -31°F to 176°F
(-35°C to 80°C)
Humid: 0% to 100% |
Temp:
+14°F to 140°F
(-10°C to 60°C)
Humid: 0% to 100% |
+14°F to 104°F
(-10°C to 40°C) |
Temp: -31°F to 176°F
(-35°C to 80°C)
Humid: 0% to 100% |
| Measurement Range: |
+14°F to 122°F (-10°C to 50°C) |
-31°F to 176°F (-35°C to 80°C) |
Temp: -31°F to 176°F (-35°C to 80°C)
Humid: 0% to 100% |
Temp: +14°F to 140°F (-10°C to 60°C)
Humid: 0% to 100% |
-328°F to 2372°F
(-200°C to 1300°C) for
K type depending on thermocouple used. |
Temp: -31°F to 176°F (-35°C to 80°C)
Humid: 0% to 100% |
| Accuracy: |
±4.5°F (±2.5°C) |
±2°F (±1°C) |
Temp: ±1°F (±0.5°C); H
umid: ±3% |
Temp: ±3°F (±1.5°C);
Humid: ±4.5% |
±2°F (±1°C) |
Temp: ±1°F (±0.5°C); H
umid: ±3% |
| Sample Rate: |
30 minute fixed |
User selectable 10s to 12h |
User selectable 10s to 12h |
1 second fixed |
User selectable
1s to 12h |
User selectable 10s to 12h |
Battery/
Battery Life: |
CR1620/
1-month life |
3.6V 1/2AA/
1 year life |
3.6V 1/2AA/
1 year life |
N/A - powered by USB port |
3.6V 1/2AA/
6 month life |
3.6V 1/2AA/
1 year life |
| Resolution: |
2°F (1°C) |
1°F (0.5°C) |
Temp: 1°F (0.5°C),
Humid: 0.5% |
Temp: 1°F (0.5°C),
Humid: 0.5% |
1°F (0.5°C) |
Temp: 1°F (0.5°C),
Humid: 0.5% |
| Alarms: |
Hi/Low programmable |
Hi/Low programmable |
Hi/Low programmable for both |
Hi/Low programmable for both |
Hi/Low programmable |
Hi/Low programmable for both |
| Alarm Status: |
Red/Green LED |
Red/Green LED |
Red/Green LED |
Email, text, audible PC alerts |
Red/Green LED |
Red/Green LED |
| Interface: |
USB |
USB |
USB |
USB |
USB |
USB |
| Memory: |
4,080 readings |
16,328 readings |
16,328 readings per channel |
Stores 7 days to PC file |
32,000 |
16,328 readings per channel |
| Logging Start: |
Delay or immediate |
Delay or immediate |
Delay or immediate |
Realtime |
Delay or immediate |
Delay, push-button, or immediate |
IP Rating
(water resistance): |
na |
IP67 |
IP67 |
na |
na |
na |
| Software: |
Windows 98, 2000, XP, Vista |
Windows 98, 2000, XP, Vista |
Windows 98, 2000, XP, Vista |
Windows 98, 2000, XP, Vista |
Windows 98, 2000, XP, Vista |
Windows 98, 2000, XP, Vista |
| To Order |
| TW-USB-LITE |
Temperature Data Logger, economy |
|
| TW-USB-1 |
Temperature Data Logger, IP67 |
|
| TW-USB-2 |
Relative Humidity Temperature Data Logger, IP67 |
|
| TW-USB-RT |
Real-time Relative Humidity Temperature Data Logger |
|
| TW-USB-TC |
Thermocouple Temperature Data Logger |
|
| TW-USB-2-LCD |
Relative Humidity Temperature Data Logger, with LCD |
|
| TW-USB-CASE |
Rugged Metal Case. Fits TW-USB-1 or TW-USB-2 |
|
| Calibration Options (Includes NIST traceable certificate) |
| CAL-2PT |
NIST-Traceable Calibration Certificate,
2 points
(32°F & 122°F) |
|
| CAL-RH2PT |
NIST-Traceable RH Calibration Certificate,
2 points (30% & 60%),
includes single temperature at ambient. |
|
| Each meter is tested individually at the specified points and actual test data is provided on the NIST Traceable Report of Calibration. |
Go here to order PROBES

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Plugs directly into USB port. No cables or adapter required.

Plug any type K, J, or T thermocouple into the TW-USB-TC logger.

Rugged Metal Case
Fits TW-USB-1 or -2, watertight to IP67/NEMA-4X.
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