SensMax L3 Customer Survey Button

- Operation principle:Three feedback buttons with smileys - happy, sad, disappointed
- Internal memory :25 days
- Power supply:AA batteries
- Battery life:Up to 2 years
- Communication range:L3 Pro up to 50m, L3 LR - 150m, L3 SLR - 800m
Wireless feedback button with three smiley icons, up to 2-year battery life, 25-day memory, and NPS calculation for service quality monitoring.
SensMax L3 143 EUR | SensMax L3 LR 165 EUR | SensMax L3 SLR 187 EUR
*The prices specified are without VAT, import taxes, shipping, and customs clearance costs, if any of them are applicable.
SensMax L3 Wireless Customer Survey Button
The SensMax L3 wireless customer survey button is a compact, battery-powered device for quick customer satisfaction feedback collection. Featuring three clear smiley icons (happy, neutral, sad), it allows visitors to leave instant feedback by pressing a button. The device installs in seconds, either in a plastic question holder stand or directly on a wall or desk, making it an easy way to monitor service quality and customer experience.
How It Works
Each press is recorded and stored in the survey button’s memory. Every 20 minutes, the data is transferred via a SensMax SMX data gateway to the reporting portal or local server. Built-in spam protection ensures reliable statistics by ignoring repeated presses within a short time. Reports include customer satisfaction trends, Net Promoter Score (NPS) calculations, and combined analytics with people counting data for deeper insights.
L3 survey button with question holder for quick feedback
Installation & Operation
The device runs on standard AA batteries for up to 2 years, with no cabling required. Setup takes minutes: mount the button in its holder or at the desired spot, pair it with a gateway, and start collecting real-world feedback immediately. A built-in backup memory stores up to 25 days of data, ensuring no information is lost if connectivity is interrupted.
Example placements for service quality feedback
Key Advantages
- Wireless setup — quick installation without wiring.
- Internal memory — 25 days of backup survey statistics.
- Long battery life — works up to 2 years on AA batteries.
- Automatic updates — survey results sent every 20 minutes.
- Spam filter — intelligent protection against repeated presses.
- NPS support — ready to use Net Promoter Score calculation.
Real-World Applications
- Retail stores — measure checkout service quality.
- Shopping malls — track overall visitor satisfaction.
- Airports & stations — collect passenger comfort feedback.
- Banks & offices — monitor customer service quality.
- Washrooms — rate cleanliness and maintenance efficiency.
Business Impact
Feedback buttons provide a simple way to monitor customer satisfaction in real time. Regular reports highlight service quality trends and help identify weak points. Net Promoter Score (NPS) metrics offer a clear benchmark for improvement and allow direct comparison across branches or service points. Combined with visitor traffic data, the survey system shows how satisfaction levels correlate with customer volume, supporting data-driven decisions in operations and staffing.
Example in Action
A retail chain installed SensMax L3 survey buttons at checkout areas. Customers rated their experience in seconds by pressing a smiley button. Reports revealed that satisfaction dropped during peak hours, correlating with longer waiting times. Based on this insight, additional staff were scheduled during busy periods. Within a month, satisfaction scores rose and checkout efficiency improved, directly boosting customer loyalty.
Model Variants
- L3 Pro — connectivity range up to 20–50 m, ideal for small premises.
- L3 LR — connectivity range up to 150–250 m, suited for medium-sized venues.
- L3 SLR — connectivity range up to 800–1000 m, designed for large sites and complex layouts.
Get Started
Want to measure customer satisfaction instantly? Request a demo or quote for the SensMax L3 Customer Survey Button today. Where to Buy
SensMax L3 Customer Survey Button Technical Details
Parameter | Value |
---|---|
Application | Customer feedback collection, NPS index calculation, retail store survey button, shopping mall feedback device, airport customer satisfaction tracking, bank office service quality survey, washroom cleanliness feedback |
Operation principle | Three-button feedback input with smiley faces |
Communication range | L3 Pro 20–50 m; L3 LR 150–250 m; L3 SLR 800–1000 m |
Radio frequency | L3 Pro 2.4 GHz; L3 LR 868 MHz; L3 SLR 868 MHz |
Internal memory | 25 days of backup data |
Power supply | AA batteries |
Battery life | Up to 2 years |
Spam filter | Intelligent digital filter against repeated pressings |
Enclosure | White ABS plastic |
Dimensions | 67×67×25 mm |
Data gateways supported | SensMax SMX Pro, LR, SLR gateways |
This device appears in those solutions:


