Features: High precisions steel fishing thermometers delivers accurate 0 to 60℃ or 0 to 100℃ readings in harsh mine tunnels or outdoor fishing environment with waterproof, corrosion resistant durability. build with industrial steel and shatterproof glass , this compact tool resists moisture, dust, and extreme temperatures for reliable performances in corrosive underground or marine setting . trust by mining engineers, industrial technicians, and anglers for critical temperature monitoring in hazardous workspaces or dynamic fishing expeditions. Optimized for underground mines, mining shafts, and riverbanks fishing —ensures safety and efficiency where precisions matters most under hard conditions. Lightweight yet hard design combines portability with laboratory accuracy, featuring a silicone sealing metal body for years of stable service in extreme situation . Specifications: Material: steel, glass Size: 12cm/4.72inch Type: 0 to 60℃ or 0 to 100℃ Package Includes: 1xTemperature gauges note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.