Specifications: 0.5m, 1.0m, 1.2m, width 0.08m Color red, blue Material: δ=0.8mm, 304 stainless steel; Features: Scale ye luui në acid corrosion. Luɔr dɔ tɛ̈ɛ̈m, contrast dɔ tɛ̈ɛ̈m; Intuitive, economy, easy to observe, long service life, good corrosion resistance, durable, never fade color, use: suitable for rivers, lakes, reservoirs, hydropower stations, irrigation areas directly observing water levels