Check the listing for details. Weston Portable Standard - Vintage Collectable. Condition: For parts or not working. Listed at 49.95 USD. Weston Portable Standard AC and DC Rated Volts 500-200-100Max Volts 600-300-150Rated Amps 10-5Max Amps 20-10 Unknown FunctionalitySold AS-IS - No RefundsThis is vintage piece of history not what you want to use for calibration Payment:Payment must clear before shipping. Shipping On This Item: Shipping & Handling can be calculated using the shipping calculator. Shipping address must match "bill to" address. Return Policy: This item is being sold AS-IS. There are NO returns or refunds allowed. Shipping & Handling fees are non-refundable. Feedback Policy: When the customer is satisfied with a purchase and leaves positive feedback then we are more than happy to leave feedback in kind. Please contact us FIRST if there is a problem or concern.