Manual       ZM2N Speaker Watts Calculator/Overvoltage Protection/High Tone Generator                                                                         The ZM2N (shown with lid removed) takes the advanced features of the ZM1P a step further. Incorporating all the features of the ZM1P, the ZM2N provides a higher level tone output - ideal for use in noisy environments. The ZM2N is battery powered and it can also be powered from any 115VAC or 220VAC* source and comes in a virtually indestructible, crushproof carry case. The lid is removable to allow access into tight spaces. The case employs compound latches, a locking feature and stainless steel hardware is used throughout. High quality test leads are supplied.   Specifications Test Frequencies: 100Hz, 330Hz, 1kHz, 10kHz Voltage Ranges 25Vac - Some USA public schools and institutions 50Vac - International 70Vac - USA Industrial Standard 100Vac - International Impedance Measurement Ranges: 0 - 199.9 ohms 0 - 1999 ohms 0 - 19.99k ohms Wattage Measurement Ranges: 0 - 19.99 watts 0 - 199.9 watts 0 - 1999 watts Accuracy (typical): ZM2N - Impedance ± 1% / Wattage ± 2% Connectors: Load / Output - Banana Jacks Tone / Line Input - ¼" Phone TS 10Kohm Display: 3½ Digit LCD with Battery Low Indicator Test Tone: 70Vac rms Nominal Power Requirements: Sixteen "AA" Alkaline, Nicad or Nickel-Metal Hydride Batteries or 115VAC. Also available in 220VAC* configuration. * Order 220VAC as ZM2N.2 Expected Battery Life: Impedance Mode - 70 hours continuous Calculated Watts Mode - 50 hours continuous Size (W x H x D) : 10¼ x 5 x 9½ Weight: 5 lbs. Case Material: Fiberglass Reinforced ABS Manual: NL, GB, FR Approvals: CE, RoHS and WEEE Emissions: - EN 55022 B - FCC Class B Immunity: - EN 55024 B Manual