Review on Mini Digital Electronic Thermometer Hygrometer - 12 Pack for Indoor Monitoring in Humidifiers, Greenhouses, Gardens, Basements by Rebecca Waffles

They arrived in working condition and they are within 1% of a fancy expensive unit I borrowed from my husband until they arrived so it's close enough to meet my needs namely the hatching of chicken, turkey, duck, and emu eggs. They already work, so I'm not sure how long the battery will last, so for the price I'd consider them almost "disposable". This is an affordable and fairly accurate alternative to an expensive device. Exactly what I need. * If this review was helpful to you, please let me know by clicking the "Helpful" button, thanks! *