SQWCLOCK Touch To Lock / Open Toilet Locking Door Sensor

SKU: SQWCLOCK Brand: C Prox Ltd Inc Quantek

£88.04 ex VAT

Square toilet locking door sensor.

Colour

The square toilet locking door sensor is designed with both safety and simplicity in mind, making it the perfect companion for our disabled toilet door locking system. Combining a sleek, modern design with intuitive operation, it gives users a clear and confident way to lock or unlock the door, no confusion and no hassle.

Bright red and blue LEDs instantly display the lock status, offering peace of mind that the door is secure and private. With adjustable sensitivity, ranging from touch to up to 50mm hands free activation. It’s ideal for hygiene conscious and high traffic environments.

The sensor’s scratch resistant label is infused with a powerful antimicrobial agent, which eliminates 99.9% of bacteria and viruses, including E. coli, MRSA, Salmonella, and the flu virus. It also prevents the growth of mould, biofilm, and fungi, keeping surfaces cleaner, fresher, and free from odours or staining. Built to withstand daily use, its continuous antimicrobial protection not only improves hygiene but also helps extend the product’s lifespan.

Whether you’re upgrading an existing facility or installing a new accessible washroom, this sensor combines hygiene, safety, and modern style in one smart, reliable solution.

Benefits-

Bright red & blue LEDs provide instant lock/unlock feedback.
Adjustable sensitivity touch or hands free for optimal hygiene.
Antimicrobial protection eliminates 99.9% of bacteria and viruses.
Scratch resistant acrylic label ensures durability and long lasting clarity.
Prevents mould, odours, and staining, reducing maintenance costs.
Stylish, modern design complements any accessible toilet system.
Custom branding available – bespoke labels designed to your requirements.

To discuss this product in more detail, or to explore bespoke labels or system options, please contact us. Our team will be happy to assist with technical guidance, custom requirements, or project specifications.

▪ Sensor Beeps but Doesn’t Lock the System

Solution:

Link out the door switch terminals on the control board.
If this works, inspect the mag lock reed switch/monitoring wiring and armature plate alignment.
Ensure the mag lock provides a normally closed (NC) signal when the door is shut.
See troubleshooting document for more information.

Note: On RTR mag locks the black & green flying leads connect to the door switch terminals on the WCPCB.

▪ Touch Sensor Doesn’t Beep When Touched

Step-by-step checks (de-power system for 10 seconds after each step):

Ensure the sensor is securely mounted—not dangling or held in hand.
Check the jumper next to the sensor relay is fitted and making properly.
Use a multimeter to check voltage across +V and 0V at the sensor.
- The touch sensor and LEDs use separate supplies – LEDs being lit doesn’t mean the touch sensor side has power.
Confirm 0V is in the correct terminal, not the REM terminal.
Disconnect the sensor from existing cabling and connect it directly to the controller on a short piece of cable to rule out cable issues.

▪ System Locks With No One Inside

Solution:

Ensure mag lock contacts are wired into the door switch terminals on the control board.
Adjust the potentiometer on the internal toilet door sensor to switch for 3 – 5 seconds.
Reduce the sensitivity of the internal toilet door sensor, especially if emergency lighting or hand dryers are nearby.
Remove any excess cable inside the touch sensor back box.
Re-terminate internal touch sensor connections.
Consider fitting the MULTI-TIMER reset relay.

▪ Automatic Door Doesn’t Open

Solution:

Remove the two wires from the C and NO door activation terminals on the control board and join them together.
If the door still doesn’t open, the problem lies with the operator—contact the supplier/manufacturer.

▪ System Goes RED But Maglock Doesn’t Engage

Solution:

Check the position of the override keyswitch on the external sensor.
Ensure the break glass hasn’t been pressed.
Inspect the lock fuse.
Link out the NC & KS/BG terminals on the control board.
- If the system works after linking, but your keyswitch and break glass are correctly positioned, there is likely a cable break.
Use a multimeter to check for voltage at the mag lock.
- If voltage is present but the lock isn’t engaging, the lock is faulty.

▪ Touch Sensor LEDs Aren’t Lit

Solution:

Verify that the solid/flashing LED jumper on the control board is in place.
Refer to the wiring diagrams section.
Use a multimeter to check voltage at the touch sensor LED terminals.
- The LEDs have a separate power supply from the sensor itself—if the sensor beeps but LEDs don’t light, check for a cable break.
Remove the sensor from the wall and connect it directly to the control board using a short cable to rule out wiring issues.

▪ Touch Sensor LEDs Flashing (Want Solid Light)

Solution:

Change the jumper position on the control board.

▪ Door Re-locks Instantly After Unlocking

Solution:

Adjust the potentiometer on the toilet door sensor to switch for 3 – 5 seconds.
This may occur if the mag lock contact is going open & closed circuit while the touch sensor is still beeping.
Check armature alignment and ensure the door does not judder when opening.
If the issue persists, replace the mag lock or install a standard magnetic door contact instead.