Item Number Sensor Units Total Range Accuracy Interface Input (Vi) Output (Vo) Calculation
3667, 3667-20, 3667S Temperature °F (°C) ±1°F (-25 to 212°F), ±0.6°C (-32 to 100°C) Analog 3.0 to 5.0 VDC 0.0 to Vi Table, see Temperature tab
3612RHS Relative Humidity %RH 0 to 100% ±3%RH (10 to 100% @ 5° to 50°C) Proprietary (A/C) N/A N/A N/A
3613RS Temperature, Relative Humidity °C, %RH -40 to 100°C, 0 to 100%RH ±0.6°C (20 to 30°C), ±1.2°C (0 to 20, 30 to 50°C), else ±2.4°C; ±3% RH (20 to 80% RH), ±4% RH (10 to 20%, 80 to 90% RH), else ±5% I2C (Digital) 2.4 to 5.5VDC I2C Digital See Sensirion SHT7x datasheet
3665R Tipping Bucket Rain Collector in, mm 0.01 in/tip (0.254mm/tip) ±2% at = 5
3668i, 3668i3, 3668i6 LightScout Quantum Light Sensor, 3-Sensor Quantum bar, 6-Sensor Quantum bar umol/m2s 0 to 3000 umol/m2s ±5% Analog 3.0 to 5.0 VDC 0 to 3.0VDC umol/m2s = 3000 * (Vo/3)
3676i LightScout UV Light Sensor umol/m2s 0 to 300 umol/m2s ±5% Analog 3.0 to 5.0 VDC 0 to 3.0VDC umol/m2s = 300 * (Vo/3)
3670i Lightscout Solar Pyranometer W/m2 0 to 1500 W/m2 ±5% Analog 3.0 to 5.0 VDC 0 to 3.0VDC W/m2 = 1500 * (Vo/3)
3305WD Wind Direction Degrees 0 to 359° ±4° Analog 3.0 to 5.0 VDC 0 to 3.0VDC degrees = 359 * (Vo/Vi)
3305WD Anemometer (Wind Speed) mph, km/h 0, 2 to 150 mph (0, 3 to 241 km/h) ±2 mph (±3 km/h), ±5% Pulse mph = pulses per 2.25 seconds
3673 Voltage Input Cable V 0 to 3.000 VDC ±0.005V Analog N/A 0.0 to Vref V = Vo
3674 4-20mA Input Cable mA 0 to 20.1 mA ±1% Analog N/A 0.0 to Vref mA = 24.19 * (Vi/Vr)