SENTRY ST-530 Solar Power Meter Daylight filter 400~1100 nm New

ST530
ST530 is designed to measure solar power in the range from 400 to 1100 nanometers. The power of solar spectral range, orientation and angular detection of the meter allow users to conduct the most precise quantitative measurements of solar power radiation.
FEATURES
Solar power measurement with Orientation and Tilt angle.
4 digits and auto range measurement.
W/m2 or BTU/ft2?h unit selection.
20 points memory, auto record and data recall.
Auto transmission measurements.
Automatic backlight LCD and triple reading display.
SPECIFICATIONS
Model name ST530
Range 0~2,000 W/m² (0~634 BTU/ft²?h)
Accuracy (at 23°C, 60% RH) ±10W/m² (±3 BTU/ft²?h) or ±5% whichever is greater
Resolution 0.00~99.99 W/m² : 0.01 W/m²
100.0~999.9 W/m² : 0.1 W/m²
1,000~2,000 W/m² : 1 W/m²
0.00~99.99 BTU/ft²?h : 0.01 BTU/ft²?h
100.0~634.0 BTU/ft²?h : 0.1 BTU/ft²?h
Angular Accuracy Cosine corrected < 7% (angle < 60°)
Tilt Angle Range 0°~90°
Tilt Angle Accuracy(at 23°C, 60% RH) ±1.2° (?60°), Additional temperature induced error ±0.1°/°C from 23°C
Sample Time Approx. 0.4 second
Compass Yes
Weight 202 g (7.1 oz.) without battery
Dimensions Main Instrument : 140×49×29 mm (5.5"×1.9"×1.1") 
Sensor Probe : 83×54×26 mm (3.3"×2.1"×1.0")
Accessories 9V battery(Battery does not include), Instruction manual, Carrying case, Sleev