Pulse Counter, CSK4-YKW 4 Digits 0-9999 Industrial Totalizer Mechanical Electromagnetic Pulse Counter For Chemical Textile Machinery(DC 12V) auspowers_batchone φ2mm Gold plated sharp probes:

φ2mm Gold plated sharp probes: Length: 33mm

etc and are specified for military

oil and smudge resistant with a self-adhesive backing that ensures a firm

so even you don't have a helper

and it is comfortable and secure to hold

Pulse Counter, CSK4-YKW 4 Digits 0-9999 Industrial Totalizer Mechanical Electromagnetic Pulse Counter For Chemical Textile Machinery(DC 12V) auspowers_batchone φ2mm Gold plated sharp probes:Pulse Counter, CSK4 YKW 4 Digits 0 9999 Industrial Totalizer Mechanical Electromagnetic Pulse Counter For Chemical Textile Machinery(DC 12V) Specification: Model: CSK4 YKW Material: Plastic, Electronic Parts, Metal Count range: 0 9999 Voltage: DC 12V,DC 36V (Optional) Range of voltage fluctuation: 15% ~ +10% Count speed: DC20 times Sec, AC10 times Sec Frequency: 50~60Hz Indication error: < 1x 0. 00001 Environment temperature: 20 to 50 Relative