The AI-5600 handheld high-precision thermometer is designed with a 24-bit AD converter and a 16-bit microcontroller, achieving a measurement accuracy of up to 0.02%. This is 5 to 25 times more accurate than common handheld thermometers on the market, offering metrology-level precision for verifying the true temperature of equipment. It is widely applicable for handheld precision temperature measurements in production, research, laboratories, and other settings. The AI-5500 is a general-purpose model, offering 0.1% accuracy.

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2. 1.Wide range of input types: Support Pt100, Pt1000, Cu50, Cu100, K, S, E, T, J, R, B, N, as well as Ω, mV, and mA signals. For thermocouples, three types of compensation are available: internal, external, and manual.

   2. Mathematical and statistical measurements: In addition to basic measurement values, relative values, maximum, minimum, average, peak-to-peak value, standard deviation, and sample count are also recorded.
   

3. Six-digit display with configurable resolution: up to 0.001°C for RTDs or 0.01°C for K/E/J/T/N thermocouples.

4. Four display units are available for RTDs and thermocouples, which can be freely switched: Ω or mV, ℃, °F, and K.

5. Low power consumption: Powered by three AA alkaline batteries, the device can operate continuously for up to 1,500 hours (typical value) with the backlight turned off.

6. High and low limit alarm settings. User calibration feature.