This meter measures the total UV radiation between 250 and 400 nanometers, and is measured in µmol m-2 s-1 (micromoles of photons per square meter second).
Ultra Violet Meter with Seperate Sensor - Model UVM-SS
The ultraviolet meter and sensor with two meters of cable.
Ultra Violet Sensor - Model UVS
The ultraviolet sensor with two meters of cable.
Specifications
Display: (Model UVM and UVM-SS only) 3 1/2 digit LCD, 1.2 cm height.
Operating Environment: 0 to 50 °C. Less than 80% relative humidity up to 30 °C; Less than 70% RH from 30 to 50 °C. Sensor head on Model UVM-SS can be submerged underwater.
Power: (Model UVM and UVM-SS only) Standard 9V battery. Battery life is typically 100 hours with the carbon-zinc battery (included) and 200 hours with an alkaline battery. The letters "BAT" appear in the display when the battery needs to be replaced. To replace the battery, remove the 2 screws in the back of the case and carefully lift off the back. Observe polarity of the battery contacts.
Dimensions: Model UVM and UVM-SS: 126 x 70 x 24 mm (meter)Model UVM-SS and UVS: 24 mm diameter, 25 mm tall (sensor)
Mass: Model UVM: 140 g, Model UVM-SS: 200 g, Model UVS: 65 g (with 2m lead wire)
Cable: (Model UVS)2 meters of shielded, twisted-pair wire ending in pigtail leads: red wire is positive / high, black wire is negative / low, bare / clear wire is the shield (ground)- Additional cable can be built in per meter
Range: Model UVM and Model UVM-SS: 0 to 199.9 µmol m-2 s-1, Amount of UV in full sunlight = 170.0 µmol m-2 s-1