Linshang LS138 UV Energy Meter

Spectral ranges:

UVC: 230–280 nm, λp = 254 nm

UVB: 280–315 nm, λp = 310 nm

UVA: 315–400 nm, λp = 365 nm

UVV: 395–445 nm, λp = 420 nm

Power measurement range: 0–2000 mW/cm²

Power resolution: 0.01 mW/cm²

Energy measurement range: 0–999,999 mJ/cm²

Measurement accuracy (H is the reference value):

H < 5 mW/cm²: ±0.5 mW/cm²

H ≥ 5 mW/cm²: ±10% of H, ±5% (typical)

Temperature measurement range: –55 °C to +125 °C

Sampling rate: 2048 samples/second

Raw data logging interval: 32 times/second

Temperature data logging interval: 2 times/second

Recording time: 32 minutes

Power supply: 2 × AAA alkaline batteries

Display: Dot-matrix LCD

Dimensions: Diameter 120 mm × thickness 13 mm

Weight: Approximately 248 g