







SGWCHAND-LOCK Contactless Toilet Sensor
"No Touch" Single Gang hardwired Hand toilet sensor with scratch resistant, antimicrobial acrylic label. The switch is activated when a hand approaches, Switching red & blue LEDs to show locked or open status. Powered by 12-24Vdc,
Our contactless WC sensor has an activation range of up to 50mm making them touch free. If touched, the entire sensor is protected by Steritouch additive which kills 99.9% of germs.
Our SteriTouch® sensors offer protection against a range of bacteria including the Flu Virus, E. coli, MRSA, Salmonella and Legionella, as well as black mould growth, biofilm and fungi. Mould growth is responsible for costly redecoration cycles and respiratory complaints, especially in damp and humid environments where its prevention is otherwise difficult.
SteriTouch® works continuously and effectively to restrict this growth before it appears. It eradicates the bacteria which cause contamination and infection, as well as those responsible for odours and staining. The antimicrobial effect also protects the product against degradation, extending its use!


Additional information
Weight | 0.16 kg |
- Single gang internal no touch sensor for disabled toilet system/Toilet locking system
- 12-28Vdc
- Entire label is sensitive
- Red & blue LED indicators to show engaged/vacant status
- Sounder on activation
- Scratch resistant anti-microbial acrylic label
- Internal use only, IP52
Solution:
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Link out the door switch terminals on the control board.
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If this works, inspect the mag lock reed switch/monitoring wiring and armature plate alignment.
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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.
Step-by-step checks (de-power system for 10 seconds after each step):
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Ensure the sensor is securely mounted—not dangling or held in hand.
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Check the jumper next to the sensor relay is fitted and making properly.
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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.
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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.
Solution:
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Ensure mag lock contacts are wired into the door switch terminals on the control board.
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Adjust the potentiometer on the internal touch sensor to switch for 3 – 5 seconds.
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Reduce the sensitivity of the internal touch sensor, especially if emergency lighting or hand dryers are nearby.
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Remove any excess cable inside the touch sensor back box.
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Re-terminate internal touch sensor connections.
- Consider fitting the MULTI-TIMER reset relay.
Solution:
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Remove the two wires from the C and NO door activation terminals on the control board and join them together.
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If the door still doesn’t open, the problem lies with the operator—contact the supplier/manufacturer.
Solution:
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Check the position of the override keyswitch on the external sensor.
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Ensure the break glass hasn’t been pressed.
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Inspect the lock fuse.
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Link out the NC & KS/BG terminals on the control board.
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If the system works after linking, but your keyswitch and break glass are correctly positioned, there is likely a cable break.
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Use a multimeter to check for voltage at the mag lock.
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If voltage is present but the lock isn’t engaging, the lock is faulty.
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Solution:
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Check the LED jumper (solid/flashing) on the control board is in place.
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For square sensors, ensure LED wires are connected to the larger outer PCB (see manual p.10).
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Use a multimeter to test voltage at the LED terminals:
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The sensor and LEDs use separate supplies—beeping doesn’t mean LEDs have power.
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Remove the sensor from the wall and connect it directly to the control board using a short cable to rule out wiring issues.
Solution:
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Change the jumper position on the control board.
Solution:
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Adjust the potentiometer on the internal touch sensor to switch for 3 – 5 seconds.
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This may occur if the mag lock contact is flickering open & closed circuit while the touch sensor is still beeping.
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Check armature alignment and ensure the door does not judder when opening.
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If the issue persists, replace the mag lock or install a standard magnetic door contact instead.
Yes!
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Multiple Door Assist or Touch to Lock/Open sensors can be wired in parallel.