Retails for $1300+++

See full description here: https://www.hach.com/incubator-hach-portable-12-vdc-30-50-c-0-5-c/product?id=7640246998

Field-ready unit for reliable, accurate incubation. Operating range: 0 - 40 °C. Accuracy: ±0.5 °C @ 37 °C.
Power Source: 12 VDC via vehicle cigarette lighter socket connection.
Capacity: 6 P/A bottles or 39 MPN tubes or 42 50 mm petri dishes.
External Dimenstion: 30.5 x 30.5 x 25.4 cm (12 x 12 x 10").
Temperature Range: 5 - 50 °C ambient.

Portable
Versatile for testing needs
Maintains temperature and accuracy
Variety of racks available