W2809 Digital Display Dual Display Thermostat Hatching Pet House Intelligent Waterproof NTC Temperature Control Instrument 1. Suitable for hatching breeding, greenhouse planting, fish tanks, reptiles, aquarium breeding, various small appliances, etc. 2. The bottom shell is made of ABS flame-retardant material, which is safer to use 3. High-precision temperature control, temperature measurement accuracy to 0.1 degrees Celsius 4. Output: 10 relays one way 5. High temperature protection: 0-110 degrees Celsius 6. Measurement input: NTC (10K) waterproof sensor 7. Temperature range: -50 to 110 degrees Celsius 8. Working voltage: DC12V 9. Refresh rate: 0.5 seconds 10. Output signal: 10mA 11. Hole size: 46 x 26.5MM 12. Dimensions: 48 x 29 x 32MM 13. Weight: about 23.1G