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Wattson
Owl CM160
Efergy E2 2.0 Classic e-Link
Eco-eye
Efergy Elite
Price
£113.98
£38.99
£45.98
£32.99/£39.99
£35.98
Portable display
Yes
Wireless transmitter
Up to 30m indoor range
Ease of Connection
Automatic
Transmitter battery life
Up to 6 months
Up to 12 months
Receiver Up to 12 months, Sender up to 12 months
Easy read display
3 phase compatible
Economy 7 compatible
coming soon!
Transmitter sample rate(s)
3, 10, 20 sec
6, 30 sec
6 sec
4 sec
Manufacturer stated accuracy
+/- 2%
+/- 4%
Batteries incl.
4 x AA
6 x AA
no
Low battery indicator
High use alarm
Via ambient lighting
Display currencies
£, $, Euro, Yen
£, $, Euro
£,$, Euro
Voltage settings
240/415v
110-250v
100-400v
90-260v
Max Amps input rating
52
70
80
Country of manufacture
China
UK
DC adapter input
Sender & receiver
DC adapter included
Optional extra
LCD panel
LED panel
Instant kWh view
Instant pence per hr view
kg CO2 p.hr view
Tonnes CO2 per yr view
(Kg per month)
Projected cost per yr view
Memory function
Micro-generation compatible
On-board usage history view
Day/week/month usage view
'Trip meter' style accumulated cost counter
Show total kW usage for current hour
Sequential display of all modes
Data storage capacity
4 Weeks
30
2 Years
32 Months
2 years
Date / time display
24 hr clock
Temperature
No
Backlit display
USB PC/Mac data link
Yes PC
Wi-Eye (coming soon!)
PC/Mac data analysis software