The same precision instrument as a standard hydrometer, but uses a non toxic material instead of lead. 3-scale, packaged in a clear plastic tube that can be used as a test jar with the optional base (pictured, sold separately).
Other Items from Hydrometers & Thermometers Economy Digital Probe Thermometer - Greenline Hydrometer - Acrylic Hydrometer Test Jar - Glass Floating Thermometer - Small Probe thermometer - Pro Mash Thermometer - Thrumometer In-Line Thermometer - Fermometer Stick On Thermometer - Stainless Steel Weld-Free Thermometer - Base For Greenline Hydrometer - 9" Probe Stainless Steel Thermometer -