Digital Thermometers
This handheld digital thermometer was designed to measure surface temperatures. The TH301 used a type K thermocouple—a common temperature probe made of nickel alloys—to measure between –50 °C and 750 °C. The probe connected via a standard socket, allowing users to swap it for others suited to different tasks. With its simple LCD display and battery-powered design, the TH301 offered a practical solution for temperature monitoring in electronics servicing, repair, and general workshop use.
The TH302 could measure temperatures from –40 °C to 1100 °C (–40 °F to 2000 °F), far beyond typical workshop thermometers. It used a Type K thermocouple probe, which could be exchanged for other probes via a standard socket, and displayed readings with 0.1° precision on its LCD screen. This made it suitable for monitoring extreme temperatures in industrial processes or technical experiments. The model built on the earlier TH301, offering a wider range and finer accuracy.