The SMC IZH10 series handheld electrostatic meter has a rated charge amount range is ±20.0kV. Used for backlight for reading in the dark.
Rated charge amount range: ±20.0kV. Minimum display unit: 0.1kV (±1.0 to ±20.0 kV)/0.01kV (0 to ±0.99 kV). Compact & Lightweight: 85g. Backlight for reading in the dark