1. Shell material: plastic 2. Resolution: 0.1 degrees Celsius 3. Power supply: 2 x 1.5V button battery 4. Temperature measurement range: -50 degrees Celsius -10 degrees Celsius 5. Measurement mode: FY-11 for the built-in probe, FY-12 for the embedded probe 6. Scope of application: aquariums, fish tanks and other liquid environments are available 7. Sensor: thermistor metal sensor, line length 0.8 meters, stainless steel probe 8. LCD display, clearly visible, easy to read, large range, high precision temperature measurement, depth waterproof 9. Size: about 4.8 x 2.8 x 1.5 cm, line length about 80 cm