For Haibei 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 Haibei team provides a selection list per site.

For Haibei 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 Haibei project.

Haibei 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.

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

Haibei 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.

Haibei existing customer payment: after 1 year cooperation with good credit, can adjust to more friendly payment rhythm. Need to provide business license, bank statements and other credit materials for cooperation evaluation.

Haibei outdoor detectors common detection distance is 8m / 12m / 15m three grades; some large-range projects can be customized to 25m. MW + dual PIR hybrid detection angle is about 90°-110°; coverage relates to mounting height.

ENIVE Tech provides remote or on-site technical guidance for Haibei park perimeter, indoor ceiling, outdoor solar projects. Complex projects can book on-site guidance, on-site service within Shaanxi ENIVE Tech Haibei Station focuses on Qinghai Haibei and surrounding markets, covering the following administrative districts/counties: Menyuanhuizu Autonomous County, Qilian County, Haiyan County, Gangcha County..

Haibei indoor ceiling-mounted dual-tech detectors combine MW and PIR detection. Ceiling mounting is aesthetic, covers a wide area (8-12m diameter), suitable for residential, retail, office indoor scenarios. Dual-tech effectively reduces false alarms.

Structurally, the Haibei 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 Haibei project region.

Haibei 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 Haibei project site.

Haibei 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.