Feature●Temperature difference display range: -2 - 122°F (-9.9 - 50°C)●Humidity difference display range: 20-99%●External Dimensions (W x H x D): Approx. 1.5 x 2.5 x 0.6 inches (39 x●Weight: Approx. 1.1 oz (29 g) (not including batteries)●Power supply: DC 3V coin type lithium battery CR2032 x 1Description
Heat stroke prevention guidelines are displayed in 4 stages (danger/severe alert/warnings/warnings). Alarm sound and flashing lamp. Includes strap hole, band, and test battery for operation confirmation.