These pink masks are good for daily use. The masks are lightweight and foldable, easy to carry in bag. Filter Class: KN95. Comfortable Design: Feature an ergonomic 3D design, which tights around face.
Keithley 263 Calibrator/Source Fully Guaranteed, 5µV to 20V, 10fA to 20mA
10fA to 20mA. This unit was fully tested by a local lab with a long history of using these units. The Model 263 has been designed for easy pushbutton operation. All functions, ranges, and settings can be entered from the front panel.
