Feature: 1. Two Measurement Modes: Resistance tester has two measurement modes, automatic measurement and manual measurement. The manual measurement mode has 6 gears to choose from. 2. Bluetooth Communication: The tester comes with Bluetooth communication, after installing APP, you can perform test operation or view test results in your phone, which is especially convenient for on site use. 3. Temperature Conversion: This tester has 75℃ temperature conversion, resistance calculation function, compensation conversion according to the temperature and material of the test piece. 4. Multi Functional: The tester adopts 5inch full color HD touch screen with backlight adjustment function, which is clearly visible under strong light. The instrument also has automatic discharge function, alarm function, clock function, automatic shutdown function, etc. 5. Data Storage: The tester can store 600 sets of data, and connect with computer through USB interface and monitoring software. The monitoring software has the functions of history data reading, checking, saving, reporting, printing, etc. 6. 20A Test Current: The resistance tester has a test current of up to 20A, which is suitable for measuring transformer winding resistance, ground conduction resistance, cable conductor resistance, contact resistance of switches, connectors and relays, metal riveting resistance, etc. Specification: Item Type: Transformer DC Resistance Tester Material: ABS Model: ETCR3660 Charger Plug: US Plug 100-240V Power Supply: DC 7.4V 5200mAh rechargeable lithium battery, the battery is about 8.4V when fully charged (built in) Test Method: Precise four wire method, 2 way A D simultaneous detection Test Mode: Automatic, manual Range: 1.00uΩ to 50.00kΩ Test Current: 10A, 1A, 100mA, 10mA, 2mA, 1mA, automatic Temperature Measurement: -55℃ to 125℃, Accuracy ±0.5℃ Measurement Time: Sampling AD rate 1 second per time Data Storage: 600 groups (power failure or battery replacement will not lose data) Alarm Setting: Alarm threshold setting range 1mΩ to 2500Ω, 0Ω does not activate the alarm function, and does not activate every time when turned on Alarm Prompt: When the test value exceeds the alarm set value, the buzzer sounds an alarm prompt Test Charging Indication: The indicator on the charger turns red when charging, and turns green when fully charged Data Keeping: Automatically keep and display the measured results after each test Backlit Adjustment: Drag the slider to adjust the brightness Clock Function: 24 hour system, display hours, minutes, seconds Converted Resistance Calculation: Convert according to the temperature and material of the tested product Discharge Function: Automatic discharge after test, the discharge indication is clear, to avoid misoperation Automatic Shutdown: Automatic shutdown after 15 minutes of inactivity Display Mode: 5in true color LCD touch screen, resolution 480x854 Overflow Display: Overrange overflow function: digital 999999 overrun display Low Voltage Indication: When the battery voltage drops to DC 7.2V±0.1V, the batteryvoltage and power will display red, reminding the meter that it needs to be charged in time Protection Class: IP65 (when the cover is closed) USB Interface: With USB interface, software monitoring, stored data can be uploaded to the computer Test Line: One red and one black, each line length Approx.5m/196.9in. Package List: 1 x Resistance Tester1 x User Manual1 x Charger1 x Usb Cable1 x Storage Bag 2 x Testing Line Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.