Dual Sensor System: PIR and Capacitive Foot Sensor
The Woodbridge B-0960 uses two types of approach detection. The passive infrared (PIR) sensor is located in the toilet body above the floor level and detects body heat in a detection cone approximately 1 meter forward of the toilet. The capacitive foot sensor is a touch-responsive pad built into the toilet base trim, sensitive to the slight capacitance change produced by a hand or foot within 4 inches of the sensor surface. The control board uses the PIR signal to initiate pre-warming of the seat and heater, and the foot sensor signal to open the lid on deliberate activation. Both sensors can be independently enabled or disabled via the wireless remote settings menu -- holding the SETUP button on the remote for 3 seconds enters the settings mode where sensor toggles are accessible.
Siphon Jet Flush System and Auto-Flush
The Woodbridge B-0960 and T-0020 use a gravity-fed siphon jet flush rather than a pressure-assist or tankless system. A conventional tank (concealed inside the one-piece toilet body) fills after each flush via a standard fill valve. The siphon jet flush is quieter than pressure-flush systems and requires no minimum supply pressure beyond standard gravity fill requirements. Flush volume is 0.8 GPF (light flush) and 1.28 GPF (full flush) on dual-flush models. Auto-flush on the B-0960 triggers when the seat occupancy sensor detects the user has stood and the PIR sensor confirms the area is clear -- the flush delay is 10 seconds by default, configurable to 5, 10, or 20 seconds via the remote. Auto-flush can be disabled for households where water conservation or manual flush control is preferred.
In-Line Water Heater and Continuous Warm Water
The Woodbridge in-line ceramic heating element delivers continuous warm water without the volume limitation of reservoir tank systems. The heater draws 1,100 watts during active heating -- within the capacity of a standard 15-amp GFCI circuit but approaching the limit on circuits shared with other high-draw bathroom appliances. For reliability, a dedicated 20-amp circuit is recommended for any Woodbridge smart toilet installation. Water temperature at the nozzle is regulated by the control board to maintain the set temperature despite supply line pressure fluctuations -- the board adjusts heater duty cycle in real time to compensate for temperature variation in the incoming cold water.
Pulsating and Oscillating Spray Modes (B-0960)
The B-0960 spray system offers three distinct wash patterns: steady stream (standard wash), oscillating (nozzle moves across a 2cm range continuously), and pulsating (pressure alternates between approximately 0.03 and 0.06 MPa at 1.3 Hz). The oscillating mode uses a stepping motor on the nozzle rail; the pulsating mode uses a cam diaphragm valve downstream of the main solenoid -- the same basic mechanism used in the Waterpik FB-3575. Activating both oscillating and pulsating simultaneously is not supported in the current B-0960 firmware -- selecting one mode while the other is active will cancel the first mode. The T-0020 supports oscillating mode only; pulsating requires the B-0960.