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Wanlin WL-PG500 NB-IoT Harbin Anti-Freeze Pressure Gauge — C···
Wanlin WL-PG500 NB-IoT···
2026-06-10
Harbin Anti-Freeze Pressure Gauge direct from Wanlin Fire Protection — 12-year factory experience, WL-PG500 fully certified CE/FCC/RoHS. Key specs: NB-IoT wireless, 5s alert push via APP/SMS/Call, 5-year