4 Pack Vacuum Cleaner HEPA Filters for Cyclonic Series RO3753EA RO3731EA RO3786EA Feature:<br> 1. Clamp Grounding Resistance Tester: Measure the resistance accurately and quickly with this high accuracy resistance meter with LCD display.<br> 2. Double Insulation for Safety: The clamp tester is designed with double insulation to ensure the safety of users during measurements.<br> 3. 500 Groups Memory: This tester can store up to 500 groups of measurement data, allowing you to easily follow and analyze the grounding resistance values.<br> 4. Wide Measurement Range: With a resistance measurement range of 0.01500 and a current measurement range of 020A, this tester is suitable for various applications.<br> 5. Fast and Efficient: The single measurement time is only 0.5 seconds, allowing you to complete your measurements quickly and efficiently.<br> Specification:<br> Item Type: Digital Ground Resistance Meter<br> Model: ETCR2000X<br> Battery: 4 x AA battery, shipped without battery.<br> Working Temperature: -10-55<br> Relative Humidity: 10% -90%<br> LCD Display: 4 digit LCD digital display.<br> Storage Groups: 500 groups<br> Protection Level: Double Insulation<br> Structural Features: Jaw Method<br> Ranging: Automatic<br> External Magnetic Field: