Alarm sound output function. With upper and lower limit alarms. With hanging holes, can be hangged on the wall. Frequency Response Range: 31.5Hz~8.5KHz.
eBay
30/40/50cm Electronic Digital Display Level Ruler Magnetic Angle Meter Aluminum Alloy Level Protractor Inclinometer 90 Degree
Aliexpress UK
In addition has a clock, date, battery display on the top, providing convenience for your work and life. Compared to ordinary sensors, more sensitive, accurate, and stable. The included paper user manual can make it easier for you to use.
eBay
30/40/50cm Electronic Digital Display Level Ruler Magnetic Angle Meter Aluminum Alloy Level Protractor Inclinometer 90 Degree
Aliexpress UK
MAX/MIN mode. Sound range: 30dB to 130dB. Data hold function. Auto power off. Low battery indication. Sampling rate: fast 125ms, slow 1000ms.
eBay
1.5U Music Spectrum Digital Equalizer Pickup Display Audio LED Signal Level Indicator METER Melody Rhythm Light W Remote Control
Aliexpress UK
Angle and slope conversion. Processing: precise positioning of the working angle of the machine tool, rotation angle of the boom. Size: 60 30 55mm. Display resolution: 0.05°0.05°(<100°), 0.1°(100°~180°).
eBay
1S 2S 3S 4S 18650 Lithium Battery Capacity Indicator LED Digital Battery Level Tester Meter Battery Monitor For Electric Vehicle
Aliexpress UK
VU56 PRO is the original and upgraded music spectrum designed by Douk Audio. 56 bit in per channel, 112 bit stereo display, ultra-high resolution, easily to see the music level status in real time, every slight change of sound can be shown visually, with much kinds of display effects to dynamically decorate your listening enjoyment. Two display mode, PPM (peak programme meter, 0dB=1.5Vpp) and VU (volume unit, 0dB=0.775Vrms) mode, to satisfy different display requirements. The color of main bar and peak LED can be switched green or red freely, and it also supports 8 kinds of display effects to get much fun and higher playability. Unique and attractive design, besides MIC pick-up, VU56 PRO also can be used as an audio converter / splitter with its RCA and 3.5mm AUX inputs and outputs. All in.
eBay
KUS New 52mm Auto Marine Fuel Oil Level Gauge Meter 0-190 ohm 240-33ohm with Red Yellow Backlight 12V/24V for Car Boat
Aliexpress UK
Inspired by Nixie tube audio spectrum, Douk Audio VU9 pixie tube sound level meter integrates retro tube design and modern technology. With microphone and line inputs, also support full function adjsutments such as display mode, gain, color, speed, peak color, brightness etc., make your desktop more energetic and dynamic.
eBay
5pcs Circular Mini Spirit-Level Set Meter Bubble Inclinometer Green Bullseye Cameras Measure Tools Horizontal Ruler
Aliexpress UK
used for 1 time only.like new with original package The VOLTCRAFT Sound Level Meter SL-200 is a reliable and accurate tool for measuring sound pressure levels within the range of 30-130 dB. With a sound pressure level accuracy of +/-2dB, this meter provides precise measurements for frequencies between 31.5 Hz to 8 kHz. Ideal for use in various industries and settings, this sound level meter from VOLTCRAFT ensures quality control and compliance with regulations for noise levels. The unit quantity is one, making it a simple and efficient investment for those seeking accurate sound measurement.
eBay
4 In 1 LCD Car Digital Water Temp Oil Pressure Voltmeter Fuel Level Gauge Meter Oil Pressure Sensor + Water Temperature Sensor
Aliexpress UK
sound level meter used once
eBay
Brix Refractometer Hand held Sugar Level Test Meter Food Fruit Beverages Brix Content Homebrew Tool with ATC/Brix Range 0~32%
Aliexpress UK