Made of high quality stainless steel material, and practical.The most efficient methods of administering Oxalic Acid treatment to bees to fight off the varroa mite. The evaporator is an oblong device, assembled from the working part, the metal follower of the handle, wooden handle, electrical wire and clamps. Oxalic acid vaporizer evaporator is used for the vaporization of oxalic acid in beehives as a proven of killing both Varroa and Tracheal . Oxalic acid vaporizer can be applied all year dependant on outside temperature (should be at least 40 degrees F). Metal working part of a rectangular electric evaporator. It is equipped with an electric heater and a circular recess with a diameter of 3.5 cm, designed to accommodate oxalic acid. The working part of the evaporator is attached to the handle extension. Its function is to provide the beekeeper against and the possible ingress of vapors into the respiratory tract, as well as facilitate the process of supplying acid to the hive cell. How to use: Seal the hive to keep in the vapour, normally with a foam bung at the entrance. Add the correct quantity of Oxalic Acid (as detailed on the container) to the cup of the vaporiser. Connect up to a 12V car battery and slip the cup of vaporiser into the centre of the hive through the entrance. Seal the entrance back up. Leave until all the oxalic acid has vaporised (a few minutes) and remove. Leave sealed up for a few more minutes and then remove the foam bung from the entrance. Warm tip: 1.The red clamps - positive pole, the black clamps - negative pole. 2.Keep away from the heated housing of evaporator, to avoid . 3.When operating, You should protect yourself with tools. 4.Try not to use more than 12V or excessive voltage, otherwise, the wire may be shorted. 5.Make the wire away from the shaft to prevent melt when it heated up. 6.When working, please pay attention to observation, don't leave for a long time,don't forget to turn off the power when not use. 7.Please wait for it to cool fully before you start 2nd hive. Advise you can keep a wet rag handy and after disconnecting the power and pulling it out of the hive, just wrap the rag around it and it is cool enough to reload in fifteen seconds or so. colour:Silver, wood color, black Material:Stainless steel, wood size:Total length 50cm Package Contents: 1 x Clean the mite Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.