The BN-LINK Digital Heat Mat Thermostat is a plug-and-play temperature controller designed to regulate seedling heat mats, reptile heating pads, and similar low-wattage heating devices. It keeps temperatures within a precise range (50–108°F / 10–42°C) to promote healthy germination and plant propagation or maintain optimal reptile habitat temps. The integrated probe cable reads ambient surface temperature and automatically cycles the connected heat mat on and off to hold your target setting.