Battery Included LCD Digital Thermometer -50 to 110°C Monitor Accuracy ±1°C (Room Temperature) Compact

Waterproof Temperature Probe, Temperature Measurement Accuracy ±1°C (Room Temperature), Compact, Sensor Cord Length 100cm from Monitor, Indoor, Outdoor, Laboratory, Fish Tank, Aquarium

[Product Specifications] Size: 4.8 cm x 2.86 cm x 1.5 cm, 2 x Button Batteries (LR44) (Test Batteries Included).