Abstract: A wireless heartbeat detector includes a wireless pulsation detector that detects the heartbeat signals and a wireless receiving display for showing heartbeat value. The wireless pulsation detector receives the heartbeat signals and transmits the signals to the wireless receiving display. When signals come in, the program processor of the wireless receiving display calculates and then the heartbeat value is displayed on the display. The wireless pulsation detector contains at least one heartbeat detector, a signal processing circuitry and a wireless signal transmission circuitry. The heartbeat detector can be fixed on earlobe or finger tips. The pulsation signals are received and converted by the signal processing circuitry of the wireless pulsation detector into more stable signals. Then the signals are encoded and transmitted out through wireless signal transmission circuitry.

Abstract: An inlet valve for a water tank includes a float, a housing, and a control device. The float is vertically slidable along the control device which has an adjusting mechanism and a retaining ring for respectively controlling the upper and the lower limits of the float. The housing is connected to a water supply and has a hole and two outlets provided for the water to flow into the water tank. The control device has a block element which can be actuated to block the hole of the housing. The adjusting mechanism can easily adjust the upper limit of the float relative to the control device so that the water level in the water tank can be adjusted easily.