This Faithfull bi-metal dial thermometer is mercury free and indicates the maximum and minimum temperatures reached
Faithfull THMMBUTMF Thermometer Press Button Max-Min Review
The Faithfull FAITHMMBUTMF mercury free thermometer has a press button that records the highest and lowest temperatures reached throughout the day and night by pushing markers to the extreme readings until re-set. Suitable for indoor or outdoor use, this thermometer has the following range: -40° C to +50° C / -40° F to +120° F. Thermometer Press Button Max-Min