Swanson BLL480 Lighted Box Level, 48" Duct Programmable thermostat has an easy-to-read

Programmable thermostat has an easy-to-read backlit display

Works hard all year long and works well

Tough and durable polypropylene bird netting mesh is considered the ultimate protection by gardening authorities

Can be used with fibrous materials

Swanson BLL480 Lighted Box Level, 48" Duct Programmable thermostat has an easy-to-readHeavy duty aluminum frame houses industrial strength acrylic block vials and is finished with 'Super Shock' end caps made from a proprietary polymer rubber blend, Deep accurized V groove for round and square stock, Multi ring vials indicate 2 degree and 4 degree grade for drainage Highlights: LED lights on all three vials Auto 10 minute shut off saves on batteries Shock proof end caps Takes 2 AAA batteries 48" Carded