| Measurement items | Average value | Rank by significance average | Satisfaction average | Rank by satisfaction average | Mean difference | Rank by mean difference |
| 1) Intelligent security equipment | 3.953 | 17 | 3.959 | 14 | −0.006 | 8 |
| 2) Easy-to-operate security equipment | 4.095 | 7 | 3.972 | 11 | 0.123 | 16 |
| 3) Security guards are neatly dressed | 4.060 | 10 | 4.070 | 3 | −0.010 | 7 |
| 4) The system operation manual explains clearly | 4.006 | 13 | 3.959 | 15 | 0.047 | 12 |
| 5) Reasonable service fee | 3.962 | 16 | 3.902 | 20 | 0.060 | 13 |
| 6) Definite fulfillment of the contractual service | 4.057 | 11 | 3.997 | 8 | 0.060 | 14 |
| 7) Trustworthy service attitude | 4.247 | 2 | 4.025 | 4 | 0.222 | 21 |
| 8) Service personnel explain professionally | 4.225 | 4 | 4.000 | 7 | 0.225 | 23 |
| 9) High accuracy of security system information | 4.187 | 5 | 3.962 | 13 | 0.225 | 22 |
| 10) Complete record keeping | 4.120 | 6 | 3.915 | 18 | 0.205 | 19 |
| 11) Can quickly understand customer needs | 3.826 | 21 | 3.946 | 16 | −0.120 | 4 |
| 12) Actively respond to customer opinions | 4.076 | 9 | 3.968 | 12 | 0.108 | 15 |
| 13) Keep serving passionately | 4.079 | 8 | 3.937 | 17 | 0.142 | 18 |
| 14) Immediate service for emergencies | 3.911 | 19 | 4.006 | 6 | −0.095 | 5 |
| 15) The system can provide timely feedback information | 3.797 | 22 | 3.766 | 24 | 0.031 | 11 |
| 16) Customers have confidence in service attitude | 3.845 | 20 | 3.889 | 22 | −0.044 | 6 |
| 17) Customers feel safe | 4.016 | 12 | 3.994 | 9 | 0.022 | 10 |
| 18) Have professional ability | 3.680 | 24 | 3.899 | 21 | −0.219 | 2 |
| 19) Provide a clear service contract | 3.712 | 23 | 4.168 | 1 | −0.456 | 1 |
| 20) There is a complaint channel | 4.000 | 14 | 3.873 | 23 | 0.127 | 17 |
| 21) Considerable emphasis on feedback | 4.228 | 3 | 4.022 | 5 | 0.206 | 20 |
| 22) Maintain a good interactive relationship with customers | 3.997 | 15 | 3.991 | 10 | 0.006 | 9 |
| 23) Can take the initiative to care about customers | 4.266 | 1 | 3.905 | 19 | 0.361 | 24 |
| 24) Ability to understand customer needs | 3.927 | 18 | 4.076 | 2 | −0.149 | 3 |