Digital Ultrasonic Thickness Gauge Sound Velocity Meter Metal Depth tester 1.2-225mm Smart Sensor AS840 with LCD display
Aliexpress UK
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Round Water Temp Gauge 2" 52mm Digital Water Temperature Gauge Blue LED Car Gauge Car Meter Sensor 1/8NPT with Warning Alarm
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Xiaomi Mijia Smart Temperature Humidity Meter 3 Mini 2.1'' LCD Digital Display High Precision Sensor Monitoring Work Mi Home APP
Aliexpress UK