3pcs DC 4-100V LED Digital Display Circular Two-Wire Voltmeter DC Digital Voltmeter Head Display Reverse Connection Protection(Green) Green healthDE_Nov2023 CERUSTOP ear oil spray is

CERUSTOP ear oil spray is sprayed into the outer ear canal

To protect from accidental opening of port as it rubs on bed or by child playing and prevent beds

batteries and cables from moisture

Removing Attachment: Pulling the trigger and don't loose

or split over two meals if preferred

3pcs DC 4-100V LED Digital Display Circular Two-Wire Voltmeter DC Digital Voltmeter Head Display Reverse Connection Protection(Green) Green healthDE_Nov2023 CERUSTOP ear oil spray is3pcs DC 4 100V LED Digital Display Circular Two Wire Voltmeter DC Digital Voltmeter Head Display Reverse Connection Protection(Green) Specifications: Measuring Range: 4 100V Power Supply Range: 4 100V Minimum Start up: 3. 8V Allowable Error: 1% Input Impedance: >100K ohms Operating Current: red <100mA, green <12mA, blue <12mA Refresh Speed: approx. 300mS time Display Method: 3 digit round LED tube Display Colour: red, green, blue optional Lead Wire