HRM-10 Battery Internal Resistance Tester

HRM-10 Battery Internal Resistance Tester | Voltage & IR Tester 100V 200Ω

The FNIRSI HRM-10 is a compact, handheld high-precision battery internal resistance tester (milliohmmeter) that simultaneously measures voltage and internal resistance using the true four-wire Kelvin method. This eliminates the influence of lead and contact resistance for accurate results. It features a vibrant TFT HD color display, supports auto and manual ranging for voltage (up to 100 V DC) and resistance (up to 200 Ω), and includes useful functions like sorting mode (Pass/Fail with user-defined thresholds), data logging/history (view/export records), user calibration, buzzer alarm, and USB-C connectivity for charging and data transfer.

It is ideal for testing various batteries (lithium, lead-acid, alkaline, car batteries, etc.) to assess their health, performance, and quality. The device is portable, rechargeable (built-in 1000 mAh lithium battery), and offers excellent accuracy (±0.5%).

Specifications

• Brand/Model: FNIRSI HRM-10
• Measurement: Voltage and internal resistance (simultaneous)
• Voltage Range: 0 ~ ±100 V DC
• Voltage Gears: Auto, 1 V, 10 V, 100 V
• Resistance Range: 0 ~ 200 Ω
• Resistance Gears: Auto, 20 mΩ, 200 mΩ, 2 Ω, 20 Ω, 200 Ω
• Accuracy: ±0.5%
• Signal Frequency: AC 1 kHz
• Display: TFT HD color screen
• Power: Built-in 1000 mAh rechargeable lithium battery, USB-C charging (5 V/1 A)
• Functions: Sorting mode, data logging & export, user calibration, data hold, auto power-off, buzzer
• Operating Temperature: -10°C ~ +45°C (<80% RH)
• Storage Temperature: -20°C ~ +80°C (<80% RH)
• Dimensions: 158.7 × 80.5 × 28.4 mm
• Weight: 225 g
• Accessories (typical): Kelvin test leads/clips, USB-C cable, manual

Package contents: