The light intensity threshold monitored is adjustable from approximately 10 to 100 lumens. The HOBO's light sensitivity is peaked in the forward direction and can be taken advantage of to minimize the effect of other light sources when trying to determine the on/off state of a particular light source.
Time resolution: 0.5 second
Time accuracy: ±1 minute per week at +20°C (+68°F)
Programmable start time/date
Minimum state duration: 0.5 seconds
Time accuracy: approx. ±1 minute per week (±100 ppm at +68°F),
accuracy detail shown in Plot A
Capacity: 2,000 state changes (requires 8K of memory in HOBO Shuttle to fully offload)
Operating temperature: -4°F to +158°F (-20°C to +70°C)
Relative humidity range: 0 to 95%, non-condensing, non-fogging
Size/weight: 2.4' x 1.9' x 0.8'/approximately 1 oz.
Battery: CR-2032 (lithium); provides one year of continuous use; user-replaceable
Storage temperature: -40°F to +167°F (-40°C to +75°C)