Zoo Med Digital Combo Thermometer Humidity Gauge
Use in terrariums, incubators, or other pet animal applications. Independent remote probes measures heat and humidity at different locations! Waterproof temperature probe can be used in air or submerged in water. Battery included!
Instructions: Using suction cups, mount the probe inside the enclosure (wet or dry). Mount the digital display in a dry location outside the enclosure. Press power (pwr) button to turn on. Press and hold power button for 5 seconds to turn off. Slide fahrenheit/celsius switch to desired setting. Uses one LR44, 1.5 v battery (included).