* The pool alarm is an electronic monitoring system that automatically sounds a 85 dB alarm when children or pets fall into your unsupervised pool. * FCC Certified, Complies with CE, NF P90-307 ASTM Standards. Wireless range to 400ft, Dustproof & Water Proof Grade IP65. * Battery Powered (Battery Not Included)，4PCs of D Cell Rechargeble Battery Needed. * 4 Different Modes To Choose From: Surveil, Swim, Mute And Off Modes. For In Ground Or Above Ground Pools Up To 18' X 36'. * Receiver Alarm Level Up To 85db Within 11.5 Feet, Helps Those Who May Have Bad Hearing. * Stall Directly, No Need To Disassemble, With Adjustable Sensor Tube, Applicable For Different Water Level.
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