STI NT-SS102-EN NoTouch® Stainless Steel Contactless Switch
The STI NT-SS102-EN is a contactless infrared switch engineered for high-traffic access points where hygiene and durability are non-negotiable. Built into a medical-grade 304 stainless steel faceplate, it eliminates physical contact points—eliminating mechanical wear and cross-contamination risk in healthcare facilities, public buildings, secure corridors, and food-service areas. Hand-motion activation at 1.5 to 6 inches triggers a Form C relay contact that integrates seamlessly with any door strike, magnetic lock, or access control system accepting standard low-voltage signals. Single-gang US form factor fits standard wall boxes and covers retrofit installation marks without modification.
Key Features
- Contactless Infrared Activation: Hand-wave detection at 1.5–6 inches eliminates 100% of physical contact points on the faceplate. Critical in healthcare, food service, and public restrooms where touchless operation reduces pathogen transmission and mechanical switch failure.
- Stainless Steel IP65 Rating: Medical-grade 304 stainless construction rated IP65 (splash and dust resistant). Handles wet restrooms, kitchen entries, and exterior covered areas without corrosion or functional degradation.
- Form C Relay Contact: Dry contact closure (0.5A @ 120VAC, 1A @ 24VDC) integrates with electronic strikes, mag locks, exit-control hardware, and occupancy sensors on the same low-voltage circuit. No proprietary protocol or special wiring required.
- Dual Voltage Supply: Selectable 12VDC or 24VDC operation. Matches existing access control cabinet voltages—no step-down transformer or field modification needed.
- Adjustable Detection & Latch Time: Detection range tunable ±25% around 3–4 inches (user environment-dependent). Relay latch time adjustable 0.5–20 seconds for exit, open, or timed-unlock configurations.
- Long Component Life: Mechanical relay rated 1,000,000 cycles; IR sensor rated 100,000 hours (11+ years continuous operation). Power draw 45mA maximum, compatible with low-capacity 12/24VDC supplies.
- Status Indication & Retrofit Coverage: Selectable red/green or green/red LED status indicator (standby vs. active). Oversized faceplate covers old installation marks on retrofit deployments.
Operating temperature range –10°C to +70°C (14°F to 158°F) covers indoor HVAC environments. The NT-SS102-EN bridges legacy access control infrastructure and modern hygienic design—no VMS integration, no IP dependencies, no software licensing. It is purely a relay device that integrates into existing door-control circuits at the hardware level.
Deployment contexts where this switch delivers measurable ROI: (1) Healthcare facilities where infection control policy mandates touchless door operation at patient care areas, restrooms, and medication rooms. (2) Food-service and cold-storage entry points where hand contact contaminates food-safety protocols and corrodes mechanical switches faster than normal. (3) Secure access corridors or data centers where reducing human touch on hardware decreases badge-cloning vectors and physical tampering. (4) ADA-compliance retrofits where touchless activation satisfies accessibility requirements for staff and visitors with mobility limitations. In each case, the Form C contact is wired directly into the existing strike or lock circuit—no control panel reprogramming, no VMS reconfiguration.
The stainless steel construction and IP65 sealing make this switch suitable for covered outdoor entries and humid interior spaces (restrooms, locker rooms, kitchen service areas). However, the sensor is not rated for full submersion or sustained spray—it is splash-resistant, not waterproof. Mount it recessed or under a soffit overhang in covered outdoor locations. The detection range tolerance (±25%) means site-specific calibration is necessary: test activation distance before final installation to account for mounting depth, surface reflectance, and ambient IR background.
This product carries a one-year manufacturer warranty covering electromechanical relay and IR sensor components. It is a passive, IP-agnostic device—compatible with any low-voltage strike system (mag lock, electric latch, solenoid) that accepts a Form C dry contact. For integrators standardizing on Axis or Hanwha or Hikvision cameras with onboard relay outputs, the NT-SS102-EN pairs directly without middleware or gateway. It also integrates with conventional hardwired access control panels (Honeywell, Salto, Kaba) that have dedicated door-control relays. No ONVIF, no API, no firmware updates—pure hardware integration at the relay level.
Eden PhillipsPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
In our experience, the NT-SS102-EN fills a real gap in the low-voltage access control market. We've installed this switch across healthcare campuses, senior living facilities, and food-service operations where infection control and hygienic design are non-negotiable. The contactless infrared approach eliminates the push-button fatigue and pathogen-vector problem that plague mechanical switches in restrooms and common areas. What differentiates it from generic contactless solutions is the no-nonsense integration: it's a Form C relay, period. No IP address, no firmware updates, no VMS integration headaches. Drop it into an existing 12VDC or 24VDC strike circuit, wire the contact terminals, and you're done. On a retrofit where you're upgrading a badge reader and swapping out a worn mechanical button, this switch is a one-line change in the door control wiring diagram.
Trade-offs to acknowledge: Detection range is 1.5–6 inches with ±25% tolerance, which means you need to test on-site and calibrate for mounting depth and surface reflectance. In bright sunlight or high ambient IR (like near a heat lamp in a food-service line), false triggers are possible—we've had to add small metal reflectors or adjust mounting angle to reduce background noise. The relay latch time is configurable (0.5–20 seconds), but if you need instant strike release without any hold-time, you'll have to set it to 0.5 seconds and accept the risk of tailgating if someone walks through before the door relocks. IP65 is splash-resistant, not waterproof—don't mount it under a gutter or in a car wash; covered entries and indoor splash zones only.
Technical Highlights:
- Form C Dry Contact (0.5A @ 120VAC, 1A @ 24VDC): Industry-standard relay rating means this switch works with any low-voltage strike, mag lock, or solenoid valve control system without interface modules or signal conditioning. Direct wiring into existing access control cabinets shortens integration time and reduces bill of materials.
- Medical-Grade 304 Stainless Steel + IP65: Corrosion-resistant faceplate handles wet restrooms, kitchen entries, and humid interior spaces for 10+ years without surface degradation. Eliminates the routine replacement cycle of painted or zinc-plated buttons in high-moisture areas.
- Selectable 12VDC or 24VDC Supply: Matches existing infrastructure without step-down transformers. On systems already running 24VDC for card readers and mag locks, this is a drop-in substitution with zero additional wiring.
- Adjustable Detection Range (1.5–6 inches, ±25%): Field-tunable for different mounting depths and surface reflectance. On glass doors with metal frames, you adjust it tighter; on painted drywall, you can open it up. Gives you flexibility to retrofit into varied geometries without ordering multiple SKUs.
- 1,000,000 Cycle Relay + 100,000 Hour IR Sensor: Mechanical wear on the relay is the failure mode you'd see first (after 5–7 years of heavy use on a public restroom door). The IR sensor outlasts the relay by 2–3x, so component life is balanced and replacement is straightforward.
Deployment Considerations:
- Detection range tolerance (±25%) requires on-site commissioning. Install the switch, test hand activation at different distances, and document the working range for cleaning staff and occupants—write it on a label or training sheet to prevent frustration calls.
- Ambient IR background (sunlight through windows, heat lamps in kitchens, radiant floor heating) can trigger false activations if the switch is mounted in direct line-of-sight. Test the final location during peak occupancy and sunlight hours before finalizing cover-plate placement.
- Relay latch time (0.5–20 seconds) is configurable but not automatic. If you set it too short (0.5–1 second), tailgating risk increases on high-traffic doors. On egress (exit) applications, set it 3–5 seconds to allow safe passage. On entry (mag lock hold), 10–15 seconds is typical.
- IP65 rating is splash-resistant only—not suitable for car wash spray, sustained rain without a canopy, or direct hose-down. Position under an overhang or interior entry vestibule to maximize faceplate lifespan.
- Mechanical relay rated for 1,000,000 cycles. On a busy public restroom (50 activations per 8-hour shift), expect relay service life of 6–7 years. Plan spare relay modules in your parts inventory for high-traffic sites.
The NT-SS102-EN is the right choice for integrators standardizing on touchless door control in healthcare, food service, and public-facility upgrades, where infection control and mechanical durability are drivers. It's also a cost-effective retrofit for badge-reader systems where you're already pulling wire to the door strike and want to eliminate push-button maintenance overhead. For more options and deployment guidance across contactless and conventional access-control hardware, visit the STI catalog.
