Sampling rate. With maximum and minimum hold function. Data hold function. Red backlit alarm and audible alarm. Automatic or manual power off function. The product adopts 4‑digit display, which makes the reading data clearer and more convenient.
eBay
Universal Car Motorcycle Fuel Level Gauge 12V 2" 52mm Fuel Level Meter Gauge Electronic LED Ultra Thin Auto Benzine Meter
Aliexpress UK
Complies with IEC61672-1 Class 2 standards. Advanced Hold Functions: HOLD to freeze readings, andMAX/MIN Hold to capture peak and minimum sound levels. Clock Backup. + Button Cell for Clock. ✅ Quick, portable spot checks.
eBay
ME202WZ 5m Zigbee Wifi Tank Liquid Depth Level Meter Monitor Water Addition Level Gauge Submersible Liquid Level Sensor
Aliexpress UK
Opened only for the photos The Decibel sound meter is an instrument used to measure the ambient sound level,such as sound level around factories,workshops, schools,residential, offices,road,audio etc It also can be appropriate for noise engineering,product quality control,health prevention and treatment,etc With dBA and dBC Mode,measuring scope from 30 to 130dB. Digital display,good anti-interference performance,power saving With the backlight feature(Light up around 10s for power saving),it is appropriate for gathering the sound data at night. Composite material injection molding process is adopted for casing with anti-drop structure design.It is not only extremely wear-resisting,but also elegant
eBay
Magnetic Digital Level Angle Finder LCD Backlight Level Meter Inclinometer 4*90° Magnet Protractor Level Box For Woodworking
Aliexpress UK
Concentration Unit Decibel: dBA. Temperature Range: -10℃ -50℃. Storage Temperature: -10℃-60℃. Temperature Range: -10-50℃. 1 x Hole Sticker. Humidity Range: 20%-85%. Frequency Range: 50Hz-8.5kHz. Frequency Response Range: 50Hz-8.5KHz.
eBay
Water Level Transmitter 0-0.5M-500M Liquid Water Level Sensor 4-20mA 0-5V 10V RS485 Output Pool Tank Hydrostatic Level Meter
Aliexpress UK
Type: Digital Angle Finder. 1 Magnetic Digital Angle Finder. TYPE-C CHARGING PORT AND CONSTRUCTION: Featuring a Type-C charging port for quick recharging, this gauge is made from materials for long-lasting performance, while being compact and lightweight for easy portability.
eBay
Digital Fuel Level Gauge with Flashing Alarm Fuel Float Level Sensor 100-500mm For Car Boat Fuel Level Meter Fuel Tester 12V/24V
Aliexpress UK
It is lightweight, compact, easy to carry, and is not limited by location or location. Windproof Sponge Design: The microphone is designed with a windproof sponge, more accurate sound collection, filtering the impact of wind on the sound.
eBay
Digital Fuel Level Gauge with Flashing Alarm Car Fuel Level Meter 9-35V Fuel Level Tester for Auto Motorcycle
Aliexpress UK
This wall mount feature is suitable for permanent installations in bars, KTVs, classrooms, hospitals, and offices, maximizing convenience. This feature allows users to amplify alarm sounds or notifications as needed, effectively making it suitable for larger areas where a louder alert is necessary.
eBay
ME202W 5m Water Tank Liquid Depth Level Meter Monitor Automatic Pump Water Addition Level Gauge Ultrasonic Liquid Level Sensor
Aliexpress UK
Noise,Temperature, and Humidity. it combines sensors. -Large screen ,Wall mount design. -Unique noise detection. -Included:Main Unit+manual+charging cable. -Led Screen display. -Temperature unit Celcius.
eBay
Level Gauge Water Tank Liquid Level Meter with Temperature Sensor Liquid Depth Level Gauge Indicator with Time Display
Aliexpress UK