The moisture meter can quickly measure the moisture content of the grain. 1. Suitable for removing garbage from kitchen, electric water heater, collective kitchen Po, massage bath, etc. 2. Switch with lock function, press the switch, open, press the switch again, close. 3. Easy to assemble, convenient, safe and insulated, can work normally even with water. 4. Simply press the button to control the operation of the food waste shredder. 5. It adopts high quality material, wear resistance, corrosion resistance, durability. Specification: Item Type: Air Switch Material: ABS stal stainless Kolor: as shown in the figure Button size: about 6,7x4,6x3,2 cm/2,6x1,8x1,3 inch Button thread size: about 5,4 cm/2,1 inch Microswitch: 16A Pin width: approximately 6,3 mm/0,25 inch Weight: about 85 g/3 ounces 32 buttons (suitable for 32 mm/1,3 inch sink opening) Switch with lock (press the button to work, then press the button to close, cyclic action) Application: Air-activated switches used to control such products as: garbage shredders, massage baths, children's toys, spa, vortex-type air-activated switches. List of packages: 1 x Button 1 x Switch 1 x Air Hose 1 x Switch Seal 1 x Pneumatic Hose Connector Note: 2. Please take the real one as standard.3. The use of bathtubs usually requires an extension of the air hose.