Brand: Unbranded Series: ZC29B-1 Model: ZC29B-1 Color Options: ZC29B-1 Official Standard Configuration (Invoice Available); please leave a message with your tax ID and invoice recipient name if an invoice is required; ZC29B-2 Official Standard Configuration (Invoice Available) Operating Temperature and Humidity: Temperature (-20–40) °C; Relative Humidity ≤80% Testing Temperature and Humidity: Temperature (23±5) °C; Relative Humidity ≤75% Rated Handle Rotation Speed: 150 r/min Effect of Tilt: When the instrument is tilted 5° in any direction, the change in the indicated value does not exceed 50% of the accuracy External Magnetic Field Effect: When the external magnetic field strength is 0.4 kA/m, the change in the instrument’s reading shall not exceed 100% of the accuracy Insulation Resistance: Not less than 30 MΩ under normal temperature and humidity conditions Dielectric Strength: The insulation between the circuitry and the housing can withstand a 1 kV sinusoidal AC voltage at a frequency of 50 Hz for 1 minute Dimensions: 172 × 116 × 135 mm Weight: Approximately 3.8 kg (including accessories)