The battery back cover has good touch and anti-slip properties. There are 4 units to choose from, km/h, knots, m/s, mph. ⛵Wind speed range:1.5-93mph, 2.5-150km/h, 1.3-81Knots, 0.7-42m/s. ⛵Beaufort wind force:The 12-level Beaufort scale shows the level of wind power.
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62mm Digital & Pointer Tachometer Oil pressure Turbo Oil Water Temp Meter + Sensor Volt Vacuum EXT Temp Meter 7 Colors LED Gauge
Aliexpress UK
The flowing rate should be within the flowing range of the product, otherwise there will be no signal when passing through the liquid, it is best to pass the liquid through the full tubes. Withstand Pressure Range: ≤1.75MPA.
eBay
DC 0-100V 10A Voltmeter Ammeter LED Amp Dual Digital Volt Meter Gauge LED display Meter Amperemeter Voltage Indicator dsn-vc288
Aliexpress UK
Modular design makes it suitable for use with output modules, sensors and remote transmitters. Compact structure, easy to install. High-definition displays show both instantaneous and cumulative flow.
eBay
4 in 1 TDS Meter TDS EC Temperature(°C,°F) Meter, Instant Read Digital Water Tester Kits for Drinking Water PPM Test
Aliexpress UK
720 GPH SEAFLO Boat Marine Manual Diaphragm Hand Bilge Water Pump Plastic. Energy-Saving Design: The digital display turns off after 2 minutes of inactivity and automatically turns on when fluid is flowing.
eBay
Water Quality Detection Pen 2 in 1 TDS Meter Drinking Water Purity EC Meter High Accuracy Digital PH Tester Water Quality Tester
Aliexpress UK
High-definition displays show both instantaneous and cumulative flow. Due to the difference between different monitors, the picture may not reflect the actual color of the item. The modu-lar design make the product suitable for using with output modules.
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AC Digital Power Meter Wattmeter Socket Wattage Kwh Electric Consumption Meter Measuring Outlet LCD Power Analyzer EU US UK AU
Aliexpress UK
Whether you're conserving or monitoring usage, it's an essential tool for managing resources effectively. Maximum water consumption: 99999 litres/99999 gallons. Water flow: 1-45.5 litres/minute. Maximum flow: 45.5 litres/minute or 12 gallons/minute.
eBay
WiFi 5 in 1 Water Quality Tester PH/TDS/TEMP/EC/SG/Salinity Meter Monitor Digital LCD PH Meter For Pools Aquariums Hydroponics
Aliexpress UK
Maximum working pressure: 20BAR. Modular design makes it suitable for use with output modules, sensors and remote transmitters. Compact structure, easy to install. High-definition displays show both instantaneous and cumulative flow.
eBay
Digital Wireless Vibration Hour Meter Resettable Meter ForMotocross Engine Boat Snowmobile Motorcycle Chainsaw Marine ATV Jet Sk
Aliexpress UK
Screen Type: OLED Digital Display. Item Type: Water Cooling System Alarm. Effectively understand the system operation and quickly alarm the abnormal conditions of the system. 1 x Water Cooling System Alarm.
eBay
Digital Arm Blood Pressure Meter Cuff Medical Automatic Pressure Tonometer Tensiometer Heart Rate Pulse Meter BP Monitor Healthy
Aliexpress UK