NEW IN BOX. FREESEA AQUARIUM HEATER LED DIGITAL DISPLAY (CUT POWER OFF WHEN OUT OF WATER) FS-28 100W.
Use explosion proof quartz tube
External touch temperature control        (E1 COMES ON WHEN HEATER IS NOT SUBMERGEN INTO WATER)
Equipped with plastic protective lagging
LED digital display temperature
Super small, high power
The temperature is 62F~93F and the accuracy is +1.8F
Suitable for sea or fresh water
Heater: 63~93F 
Voltage 110V~120V
Frequency: 60Hz
100% Submerged
OFF-WATER POWER AND OVER TEMPERATURE PROTECTION FUNCTION
ULTRA SHORT DESIGN, SUITABLE FOR DIFFERENT CAPACITY AQUARIUMS, SEA OR FRESH WATER CAN BE USED
BUILT IN LED DIGITAL DISPLAY
FULLY AUTOMATIC CONSTANT TEMPERATURE FUNCTION WITH HEATING RANGE OF 62f~93f
EXTERNAL TOUCH BUTTON CIRCULATING TEMPERATURE REGULATION EASY TO USE
POWER OFF MEMORY FUNCTION, AUTOMATICALLY RECORD TEMPERATURE SET BY THE SAST SHUT
USING WXPLOSION PROOF QUARTZ TUBE, DOUBLE WATERPROOF DEVICE, ANTI SEEPAGE AND LEAK
EQUIPPED WITH PLASTIC ANTI COLLISION SHEATH TO EFFECTIVELY PREVENT IMPACT DAMAGE OF BI.