Acoustic rodent repeller GRAD A-500 has a powerful speaker and is designed to protect a big area. The device emits ultrasonic waves and audible signals so it should be used in uninhabited premises only. The device works perfectly in both hot and cold weather (from -40 to +55 °C, from -40 to 131 °F). The device is powered by 220V mains or batteries.
|
|
Strong repelling effect even in big premises The device has high and constant emission power and is able to repel pests not only from small rooms (living rooms, attics, sheds, cellars, garages), but also from production facilities (warehouses, hangars, granaries, etc.). Rodents have extremely acute hearing, so the sound of such power is very loud for them. Pests will not be able to tolerate such a loud noise constantly and will have to leave the room. |
|
|
Uses both sound and high-frequency waves The device emits both sound and ultrasound. Such an effect is often more effective than using only silent ultrasonic waves. However, due to this feature, the device cannot be used in residential areas in close proximity to people as the sound will be annoying for them. |
|
|
|
|
The device generates a non-repeating sequence of repelling signals, so pests will not be able to adapt to it over time. |
If it is impossible to power the device from the 220V mains, insert 3 AAA batteries or use an external 5-30 V battery or the car battery (car battery clamps are not included in the set). |
When the device is powered by batteries, it automatically switches on the mode which significantly reduces power consumption keeping the power on almost the same level. |
|
|
Package content:
|
Model |
|||||||
Protection range |
500 m2 (5380 ft2) |
550 m2 (5920 ft2) |
1000 m2 (10760 ft2) |
1200 m2 (12900 ft2) |
|||
Number of ultrasound emitters |
3 |
1 |
4 |
||||
Operating frequency, kHz |
20-45 |
20-40 |
4-64 | 18-40 |
4-72 |
24-26 (with modulation 0.5-4000 Hz) |
|
Ultrasonic pressure power, dB |
120 |
110 |
120 |
||||
Light flashes deterrence |
no |
no |
no |
no |
yes |
yes |
yes |
Operating modes |
1 |
4 |
|||||
Author's ultrasound operation algorithm |
no |
yes |
yes |
yes |
yes |
yes |
yes |
Radiation power adjustment |
no |
no |
no |
no |
yes |
yes |
yes |
Sсheduled operation |
no |
no |
no |
no |
no |
yes |
no |
Silent operation |
yes |
yes |
no |
yes |
yes |
yes |
yes |
No addictive effect |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
Power supply |
220V network |
220V network, 3 AAA batteries, external source |
220V network, external source |
||||
Dimensions |
75 x 122 x 122 mm (2.95 x 4.80 x 4.80 in) |
85 x 65 x 75 mm (3.35 x 2.55 x 2.95 in) |
109 x 65 x 25 mm (4.30 x 2.55 x 0.98 in) |
||||
Weight |
340 g (12 oz) |
120 g (4,2 oz) |
95 g (3,3 oz) |
120 g (4,2 oz) |
|||
