Marina Standing Thermometer - Celsius and Fahrenheit, designed to sink to the bottom of the aquarium and remain in a vertical position, Centigrade, Has a safety zone temperature range indicator for most tropical fi
Tech-Med* Digital Thermometer Dual Scale, Quick 10 Second Read with easy to read large LCD display and low Battery Indication, Reads both Centigrade and Fahrenheit; Range: 32 degree c- 43.9 deg C, 90 - 109.9 degree F, Alarm/Beeper when reading is complete.
Range: -50 to 300[degree]C. Accuracy: +-1[degree]C. 4.4dia.x1.3Dcm. Reads [degree]C or [degree]F. NIST Traceable certificate from an ISO 17025, A2LA accredited calibration laboratory. Includes probe with 3m cable, magnet, suction cups, Velcro* fastener, and battery.