HTC DM–91 3½ Digit 1999 Count 20µA-10A True RMS AC/DC Digital Multimeter

The HTC DM-91 is a versatile 3½-digit digital multimeter designed for accurate measurement of AC/DC voltage, current, resistance, capacitance, frequency, and temperature. With a 1999-count display and True RMS capability, it ensures precise readings across various applications. Its user-friendly interface, large backlit LCD, and robust features make it an essential tool for professionals and hobbyists alike.

Key Features:

• True RMS Measurement: Provides accurate readings for both AC and DC signals.
• Wide Measurement Ranges:
  • AC/DC Voltage: 200mV to 1000V
  • AC/DC Current: 20µA to 10A
  • Resistance: 200Ω to 200MΩ
  • Capacitance: 2nF to 200µF
  • Frequency: Up to 200kHz
  • Temperature: -20°C to 1000°C
• Data Hold Function: Allows users to freeze the current reading for convenient recording.
• Auto Power Off (APO): Conserves battery life by automatically powering down after a period of inactivity.
• Backlit LCD Display: Ensures clear visibility in low-light conditions.
• Diode and Continuity Testing: Facilitates quick checks of diodes and circuit continuity.
• Transistor hFE Test: Measures the DC gain of NPN and PNP transistors.
• Manual Ranging: Offers flexibility in selecting measurement ranges.
• Low Battery Indication: Alerts users when the battery needs replacement.

Specifications:

• Display: 3½-digit LCD with 1999 counts.
• Sampling Rate: Approximately 0.4 seconds per sample.
• Overrange Indication: Displays '1' or '-1' when the input exceeds the selected range.
• Input Impedance: 10MΩ for voltage measurements.
• Power Supply: 9V battery (6F22).
• Dimensions: 191 mm (H) x 82 mm (W) x 36 mm (D).
• Weight: Approximately 310 grams (including battery).

Box Includes:

• HTC DM-91 Digital Multimeter.
• Test leads.
• TP04 thermocouple for temperature measurements.
• User manual.
• Protective holster.
• 9V battery.

Applications:

• Electrical and Electronic Circuit Testing: Ideal for diagnosing and troubleshooting circuits.
• Maintenance and Repair: Suitable for servicing electrical equipment and appliances.
• Educational Purposes: Useful in laboratories and technical institutions for teaching and experimentation.
• DIY Projects: Assists hobbyists in building and testing electronic projects.
• Industrial Use: Applicable in various industries for equipment installation and maintenance.