Check the listing for details. Irrometer Standard Test Pump Service Unit. Condition: New. Listed at 104.99 USD. Description Service Units are designed to aid users in the placement and installation, interpretation of readings, and maintenance of IRROMETER soil moisture indicators. Several helpful items are included in the kit. The primary component of a Service Unit is a small hand vacuum pump. The pump is designed to seal on the reservoir portion of the instrument body and is used to create a vacuum manually, evacuating any air contained in the tensiometer. These instruments function with the greatest accuracy when all air has been removed.One Service Unit will service multiple instruments. Two versions of the vacuum pump are available. The standard pump included with the Service Unit is used for most applications. - Shipping & Delivery We offer free shipping for this product within the continental US. For standard shipping, we strive to process orders within 1 to 3 business days. For USPS as a shipping option, expect delays. For international orders this listing uses Ebay's Global Shipping Program.Returns A 30-Day Return Policy is offered on this purchase. If the item you purchased arrived damaged, faulty, or didn’t match the listing description a full-refund or an exchange is available. Buyers are responsible for paying the return shipping if an item is returned for any other reason. Buyers are responsible for returns for items shipped outside of the USA unless it doesn't match the listing description.Feedback Please contact us if you’re unsatisfied with your purchase. We value your feedback and will work with you to resolve any issue you have as soon as we can.