SZ-MST S1/ China
- Filter size: 110x90x10mm, fixedly mounted on the welding mask. Many other types of filters of the same size can be replaced with this mask.
+ Visible area size: 100x50mm
+ Light / dark status: DIN 4/DIN 9-13
- Adjustment knob (right side of mask): Rotate clockwise to get darkness 9,10,11,12,13 depending on the intensity of the electric current when welding.
- Extremely fast automatic "darkness" adjustment speed: 1/25,000 second
- Light sensitivity: Adjustable (rotate knob from LO to HI)
- Delay time: 0.6 seconds
- Power supply: 2 small batteries and solar battery
- On and off mode: Open by pressing button (ON) - Turn off automatically
- Light sensitivity: Adjustable (rotate knob from LO to HI)
- The product meets EN379:2003, EN 169:2002, EN 175:1997, ANSI Z87.1.2010 standards

GD-HT9100B / China
- Voltage range: 0.1kV～220kV（3kV-6.3kV-10kV-35kV-66kV-110kV-220kV）
- LCD display: 47mm x 28.5mm, with backlight
- Audible alarm and double red flash
- Display speed: 2 times/second
- Auto power off: After 15 minutes of non-use
- Clamp diameter: φ60mm (1800B)
- Dimensions: Receiver: 78×165×42mm; Detector: 300×237×85mm
- Insulation pole: Maximum diameter Ø38mm; Length: 1050mm (retracted), 4500mm (extended)
- Weight: 5.6kg (including insulating pole and accessories)