Sound Level Meter with Large LCD Screen Wall Mounted Digital Sound Level Meter Digital Noise Meter
Aliexpress UK
Complete with 100-240V AC 50/60Hz adaptor and microphone wind cover. Alarm output: 3.5mm Mono Phone Plug, Maximum: 3.4mA at 5V DC. User adjustable high or low limit (30 to 130dB) with output to drive external relay module.
eBay
HABOTEST HT602 Sound Level Meter Digital Handheld DB Meter Sonometros Noise Audio Level Meter
Aliexpress UK
Complete with 100-240V AC 50/60Hz adaptor and microphone wind cover. Alarm output: 3.5mm Mono Phone Plug, Maximum: 3.4mA at 5V DC. User adjustable high or low limit (30 to 130dB) with output to drive external relay module.
eBay
GVDA Digital Sound Level Meter Audio Level Meter Sonometro Sound Meter Decibelimetro 30-130dB
Aliexpress UK
The Liquid Level Detector is designed for the visually impaired. It alerts the user with sound and vibration alarms, when the liquid level in the cup, or glass reaches the pre-assigned detection level.
eBay
Digital Sound Level Meter Audio Level Meter Sound Meter Decibelimetro 30-130dB Decibel Meter
Aliexpress UK
The SL130G is a sound level alert with alarm for continuous monitoring of sound levels. Bright LEDs (red flashing or green) alert user when sound level is too high or too low - LEDs can be read from 30m (100ft).
eBay
XRCLIF Sound Level Meter Digital Handheld DB Meter Sound Monitor Noise Audio Level Meter 30-130dB
Aliexpress UK
The Liquid Level Detector is designed for the visually impaired. It alerts the user with sound and vibration alarms, when the liquid level in the cup, or glass reaches the pre-assigned detection level.
eBay
S8607 Digital 30~130dB Decibelimeter dB Meter Sound Level Meter Measure Sound Noise Level Decibel
Aliexpress UK
The Liquid Level Detector is designed for the visually impaired. It alerts the user with sound and vibration alarms, when the liquid level in the cup, or glass reaches the pre-assigned detection level.
eBay
LCD Sound Level Meter Noise Meter Sound Level Meter Digital LCD Display Backlit Screen Noise Decibel
Aliexpress UK
Smart Features: Equipped with sound alerts to notify users of level status and an auto shutoff feature to conserve battery life, these levels combine practicality with modern technology for seamless operation.
eBay
Audio Vintage Audio Analyzer MIC Pick-up Retro Dual VU Meter Sound Level Display Home Desktop Decor
Aliexpress UK
The Liquid Level Detector is designed for the visually impaired. It alerts the user with sound and vibration alarms, when the liquid level in the cup, or glass reaches the pre-assigned detection level.
eBay