The sensor detects the difference in pressure variation within the mask and displays the result of its own algorithm.
Not only can the manager check whether the mask is worn correctly, but by checking it daily, the wearer himself/herself can understand the correct state of wearing the mask and "habituate" or "establish" it.
Measuring time is only 30 seconds! Can be easily checked "anytime", "anywhere" and "anyone". It can be used by both experienced and inexperienced workers without any difficulty.
All you need is a paperback size. Compact and lightweight portable model. Only 300 g, a compact size that can be carried in a special pouch. You can check the mask fit at the site where it changes regularly, at the place where it is transferred, and at the space saving.
Can be used continuously for approximately 3 months/6 hours per day with a dry cell battery (AAA).

Ventilation Resistance: Measurable Mask Ventilation Resistance/20 to 80 Pa (Sensor Operating Range: 10 to 100,000 Pa)
Accessory: Sensor Probe 1 piece/Sensor Connection Cord 1.0 m 1 piece
power supply : AAA size , battery , 2 pieces
external dimensions: 168 (W) x 120 (D) x 26 (H) mm * Excluding Protrusions
Weight cookies: about 300 g
Operating Temperature Range: 0 ° C to 45 ° C