Data Loggers

With built-in Ambient RH + Temperature sensor; Plug-in Contact Temp Probe (optional) providing the best available accuracy tolerances of 1.5%RH & 0.1ºF.

• Size: 3.94” x 3.54” x 1.38” (100mm x 90mm x35mm)
• Weight: 3.53oz (100g)
• Construction: ABS enclosure Power: 1 x AA type battery 1.5 Volt
• Memory: 100,000 data point entries (samples of Ambient RH and temperature; SurfaceTemperature)
• Logging Rate: Logger interval adjustable between 5 minutes and 1 hour
• Transmission Range: Up to 165ft (50m) line-of-sight Bluetooth: BLE Bluetooth Low Energy 4.2 compliant, Bluetooth 5 advertising Included: Wall Mounting and Tripod Stand

Supported measurements:

• Ambient Relative Humidity, Temperature, Dew point, Grains per pound.
• Psychrometric chart showing Relative Humidity, Specific Volume, Wet Bulb Temperature, Dry Bulb Temperature, Enthalpy, Humidity Ratio, Dew Point.
• Contact Temperature, Estimated contact RH, Ambient Dew Point, Contact Delta Temperature (with optional contact Temperature Probe)

Humidity specifications:

• Range: 0 to 100%RH
• Accuracy: ±1.5%RH Range 0% to 80%RH ±2.0%RH Range 80% to 99%RH (@ 77ºF (25ºC))
• Resolution: 0.1% over the complete range
• Drift: <0.25%RH per year

Temperature specifications:

• Range: -40ºF to 257ºF (-40ºC to 125ºC)
• Accuracy: ±0.1ºF Range 68ºF to 140ºF (±0.1 °C Range 20°C to 60°C)
• Sensor Protection: PTFE Film protects sensor opening from water & dust Drift: <0.04ºF (0.03ºC) per year

Contact temperature probe (optional):

• Units: ºF (ºC)
• Temperature Range: -20°F to +175°F (-30°C to +80°C) 
• Accuracy:  ±0.9ºF from 14ºF to 185ºF (±0.5°C from -10°C to +85°C)
• Resolution: 0.1% over the complete range

Battery:

• Power supply: 1 x AA type battery 1.5 Volt
• Battery life: Over 1 year based on logging intervals of 5mins, using an alkaline battery with a nominal voltage of 1.5V as supplied.