Photo 1 of EPTTECH Smart TLC 2326-WF-S Tuya APP Efficient Solar Panel Rechargeable Battery Liquid Level Monitor WiFi Water Oil Tank Level Sensor Waterproof IP67 Household Alarm Outdoor Ultrasonic Indicator

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Photo 1 of EPTTECH Smart TLC 2326-WF-S Tuya APP Efficient Solar Panel Rechargeable Battery Liquid Level Monitor WiFi Water Oil Tank Level Sensor Waterproof IP67 Household Alarm Outdoor Ultrasonic IndicatorPhoto 2 of EPTTECH Smart TLC 2326-WF-S Tuya APP Efficient Solar Panel Rechargeable Battery Liquid Level Monitor WiFi Water Oil Tank Level Sensor Waterproof IP67 Household Alarm Outdoor Ultrasonic Indicator