For Changchun outdoor projects, ENIVE Tech outdoor detectors use Digital Signal Processing (DSP), identifying the difference between small animals (<25kg) and people, with low false-alarm rate. The Changchun team provides anti-interference advice on site.

For Changchun stable-environment indoor places (warehouses, server rooms), choose indoor PIR (single-tech) detectors — simple structure, good environmental adaptability. For complex environments or false-alarm-sensitive scenes, dual-tech is recommended. ENIVE Tech recommends based on the Changchun project.

Changchun solar detectors have built-in lithium battery. Under normal sunlight, continuously works 15-30 days (depending on trigger frequency). Continuous rainy weather may shorten endurance. Plan redundancy based on Changchun project region climate.

For Changchun outdoor projects, ENIVE Tech outdoor detectors include heated and non-heated versions. Northern / high-altitude projects should choose heated; southern / low-altitude can use standard. Detection distance 8-15m. The Changchun team provides a selection list per site.

Changchun receiving notes: ① Check outer packaging for damage; ② Verify quantity and list; ③ Check labels (item name, batch, production date); ④ Detectors are electronic products, avoid rain and violent collision. If problems, reject in writing within 24 hours and notify ENIVE Tech.

Changchun standard model detectors are stocked 5-10 days; custom models 15-25 days (by complexity). Expedited orders can be prioritized. ENIVE Tech nationwide logistics direct to Changchun, 3-7 days delivery.

Changchun sample and small-batch order handling: ENIVE Tech supports sample supply (1-2 units), using standard models, facilitating Changchun project early verification. After sample acceptance, bulk orders proceed per project flow; samples can be incorporated into the bulk contract.

For Changchun outdoor projects, focus on: ① Anti-interference (wind, small animals, light changes); ② Outdoor durability (IP rating, rain/dust proof); ③ Heating requirement (northern / high-altitude). ENIVE Tech provides selection list based on Changchun site.

Changchun detector quality inspection flow: ① Incoming inspection (housing, modules, battery); ② Production process monitoring (welding, assembly, parameter adjustment); ③ Finished product inspection (detection distance, alarm output, heating function); ④ Environment test (high/low temperature, waterproof); ⑤ Visual inspection. ENIVE Tech ships with report.

Changchun solar detector selection considerations: ① Average daily sunshine (affects charging efficiency); ② Load power (voice / alarm output); ③ Mounting position (no shading, sufficient sunlight). ENIVE Tech provides selection and installation advice based on Changchun project site.

Structurally, the Changchun heated detector has a built-in heating film and temperature switch; non-heated does not. Detection performance is similar; difference is in low-temperature adaptability. ENIVE Tech provides selection advice based on the Changchun project region.

Changchun user warranty repair needs: ① Order and contract number; ② Problem photos (appearance / wiring / trigger); ③ Usage scenario description; ④ Inspection report (if any). ENIVE Tech evaluates responsibility, free handling for product defects.