Spectral Illuminance Meter LS335 with Touchscreen and PPFD

The Linshang LS335 spectral illuminance meter measures light level and spectral characteristics for lighting fixtures, indoor spaces, outdoor installations and plant-growing setups. It covers 0–1,000,000 lux and displays correlated color temperature, color rendering index, flicker information and a spectral curve. A separate cabled probe allows the sensor to be placed at the test point while the 3.5-inch touchscreen remains easy to read.

Compare lighting and spectral data

The spectral sensor measures 400–700nm at 10nm intervals and calculates illuminance with photopic weighting. Lux and foot-candle units are selectable. CCT, CRI and spectral views help compare light sources, while flicker frequency and depth describe temporal variation. UV index, temperature, humidity and a blue-light-ratio parameter provide additional displayed information.

Real-time, maximum, minimum and average light-level readings support comparisons over an inspection period. Keep the sensor position and orientation consistent when checking several fixtures or locations.

Measure plant lighting and keep results

Plant mode provides total PPFD and blue, green and red PPFD bands, together with YPFD and chlorophyll-weighted radiation values. These readings support comparisons of grow-light output at the measured position. Total PPFD covers 0–10,000µmol/m²/s.

The instrument stores 1,000 records. USB PC software supports reading stored measurements, viewing spectra and exporting data to Excel. The rechargeable 4000mAh battery supports the split-probe touchscreen arrangement. Use the instrument within its 0–40°C operating environment.

Technical specifications