Extech TM500 12-Channel Datalogging Thermometer

This instrument is built for comprehensive multi‑channel temperature monitoring. You can connect up to 12 separate thermocouple probes and select which channels to display on‐screen (channels 1‑8 or channels 9‑12).The device supports a variety of thermocouple types — J, K, E, T, R and S — which allows it to measure from very low to very high temperatures depending on the probe type used.Logging is fully featured: you can set a sampling interval from 1 second to 3600 seconds (i.e., up to once per hour), and it records readings with a date/time stamp. The data is written to an SD card (2 GB supported) and exported in Excel‑compatible format for analysis.Additional functions such as MIN, MAX, data hold, auto power‑off, offset adjustment (for zero‑point or relative measurements) and loop scheduling (daily start/stop) make it suitable for continuous monitoring tasks.

Features

• 12 independent thermocouple channels – allows monitoring of up to 12 separate temperature points simultaneously.

• Supports six thermocouple types (J, K, E, T, R, S) for a broad temperature range capability.

• User‑programmable sampling interval from 1 second up to 3600 seconds (1 hour) for flexible logging strategies.

• Massive data storage – up to along the lines of 20 million readings when using a 2 GB SD card.

• Excel‑compatible data export – logged data (with date/time stamps) can be exported for spreadsheet analysis.

• Offset adjustment / relative measurement – ability to zero or offset channels for relative temperature comparisons.

• MIN/MAX, data hold and auto power‑off features for convenience and battery optimization.

Includes

•  8 AA batteries
• 12 general purpose Type K bead wire temperature probes
• SD card
• Hard carrying case