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The Extech TH30 is a compact USB dual-channel temperature datalogger that simultaneously records air temperature through a built-in NTC thermistor (T1) and external probe temperature through the included TP830 stainless steel thermistor probe (T2), with each reading time-stamped to the datalogger's internal clock. Housed in a rugged enclosure roughly the size of a USB flash drive, the unit consolidates two-channel temperature logging, on-board display, and direct PC data transfer into a single device that requires no separate cradle, dock, or proprietary cable.
Applications for the TH30 follow from what the datasheet defines as the unit's working envelope: dual-point temperature monitoring across a -22 to 158°F (-30 to 70°C) range with programmable sampling intervals from 30 seconds to 2 hours. The combination of an internal air sensor and an external probe channel suits scenarios where two temperatures need to be compared or correlated over time — for example, ambient versus product, ambient versus contact surface, or interior versus exterior of an enclosed space. The 48,000-reading memory (split as 24,000 per channel) supports extended logging runs without intermediate downloads.
Extech Instruments is a subsidiary of FLIR Systems, which was itself acquired by Teledyne Technologies in 2021. Extech operates under the Teledyne FLIR umbrella while retaining its own brand identity for test, measurement, and environmental monitoring instruments.
| Specifications | Range | Max Resolution | Basic Accuracy |
|---|---|---|---|
| Temperature (Probe and Air) | -22 to 158°F (-30 to 70°C) | 0.1° | ±1.0°F (±0.5°C) |
| Datalogging interval | 30 seconds to 2 hours | ||
| Memory | Air Temperature (T1): 24,000 data; External Probe Temperature (T2): 24,000 data | ||
| Dimensions/ Weight | 4.3x1.6x0.75" (110x40x19mm)/ 1oz (90g) |
Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
Model No
Extech
Condition
New
Manufacturer
Extech
30+ Years in Business
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30+ Years in Business
Secure Payments
Sell Test Equipments
Knowledgeable Staff
On-site Lab
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