Alecto WS-4900 - 11 Specifications

17
11. SPECIFICATIONS
Indoor unit:
dimensions 118 x 192.5 x 22mm (excl. desk stand)
weight: 260g
power 5V DC 500mA mains power adaptor, model number: HX12-0500500-AG,
incl.
backup battery CR2032, incl.
Backup battery lifespan: 4 years (provided the power adapter is connected,
otherwise 2 months). The indoor unit provides no indication regarding this
battery.
frequency: 868MHz
Outdoor sensor:
dimensions: 343.5 x 393.5 x 136 mm
weight: 673g (including batteries)
power 3x 1.5V AA battery, excl. (preferably install Lithium batteries)
frequency: 868MHz
RF Power: ≤6dBm
transmission: every 12 seconds
Indoor temperature:
units of measurement: °C or °F
display range: -40°C to 70°C (-40°F to 158°F) (‘LO’ at <-40°C, ‘Hi’ at >70°C)
e󰀨ective range: -10°C to 50°C (14°F to 122°F)
resolution: 0.1°C or 0.1°F
accuracy: <0°C or >40°C ± 2°C (<32°F or >104°F ± 3.6°F)
0~40°C ±1°C (32~104°F ± 1.8°F)
memory display: history of the past 24 hours, MIN/MAX temperature with time and date
Outdoor temperature:
units of measurement: °C or °F
display range: -40°C to 80°C (-40°F to 176°F) (‘LO’ at <-40°C, ‘Hi’ at >80°C)
e󰀨ective range: -40°C to 60°C (-40°F to 140°F)
resolution: 0.1°C or 0.1°F
accuracy: -40°C ~ -20°C ± 1.5°C (-40°F ~ -4°F ± 2.7°F)
-20°C ~ 5°C ± 1°C (-3.8°F ~ 41°F ± 1.8°F)
5°C ~ 60°C ± 0.4°C (41.2°F ~ 140°F ± 0.7°F)
60°C ~ 80°C ± 0.8°C (140.2°F ~ 176°F ± 1.4°F)
memory display: history of the past 24 hours, MIN/MAX temperature with time and date
Indoor humidity:
display range: 20% to 90% (‘LO’ at <20%: ‘Hi’ at >90%)
(at temperatures between 0°C and 60°C)
e󰀨ective range: 20% to 90% relative humidity
resolution: 1%
accuracy: 20% ~ 40% RH, ± 8% RH, at 25°C (77°F)
41% ~ 70% RH, ± 5% RH, at 25°C (77°F)
71% ~ 90% RH, ± 8% RH, at 25°C (77°F)
memory display: history of the past 24 hours, MIN/MAX humidity with time and date