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Installation Manual

Maser Ultrasonic Pest Repellers are electronic transmitters of high frequency sound (well above the 20 KHz frequency which is the upper limit of the hearing range of the human ear).They emit intensive sound at high decibel levels (sound pressure) that is audible and painful to pests but is inaudible and harmless to humans. The pests will usually leave the area being protected by the ultrasound. They do not get killed.

The powerful sound waves generated by the transducers of Maser repellers are within the hearing range of many pests and cause them pain and discomfort. Sometimes they will leave the area being protected immediately, in other cases it will take as long as two to three weeks before significant reduction in infestation occurs.

Maser’s transducers are completely quiet. If you cannot hear them do not think that the unit is not working. You cannot hear ultrasound

Model: Standard
This model is a stand alone system that can protect an enclosed area of 300 sq. ft.

Model: Tailor made I
This model is a stand alone system with an additional transducer. Apart from protecting the main workstation the additional transducer protects the area of false ceiling or flooring in the ATM/Server room/Data centre/Hub room etc.

Model: Tailor made II
This model is a stand alone system with two additional transducers. Apart from protecting the main workstation the additional transducers protects the area of false ceiling or flooring in the ATM/Server room/Data centre/Hub room etc.

Location of Maser Ultrasonic Rodent Repeller:
Aim the Maser unit to the wall so that the sound will “bounce around” and will reflect from walls, ceiling, room contents and floor and will be present throughout the area. Since ultrasound usually does not penetrate walls, it is important that it bounces around corners to cover larger areas. Plug the Maser unit into a 230 volts standard wall outlet.

Extension cords may be used if necessary. The green light (LED) will go ON and OFF to indicate that the unit is working. Leave the Maser unit ON 24 hours a day.

Maser units are designed for indoor use. If used outdoors they should be protected from the weather. Outdoors, because there are fewer possibilities for reflection of the ultrasound and many things that will absorb or dampen sound, their use is limited.

Area of Effectiveness:
A single Maser unit will protect an area of 300 sq. ft. in the work place or cabin. In the areas of the false ceiling/flooring the additional transducer will protect an area of 150 sq. ft. Under difficult conditions, the size of the area that will be protected can be considerably less. The type of structure, contents and partitions may limit the area of effectiveness.

Important considerations are the cleanliness of the area, the means of entry for rodents(easy or difficult), protection of food present in the area, and the availability of alternate source of food and water. Try one Maser in the area you wish to protect. Within two or three weeks, or sooner, you should see a reduction in pest activity (sightings of rodents and droppings, and damage).If not, you may need one or more additional units.

Maser units are guaranteed for one year from the date of purchase by the user against defects in materials or workmanship.


Power Supply 230Volts AC 50HZ
Operating Frequency Above 20 KHz
Sound Output 80-110dB
Power Output 900mW per transducer
Power Consumption 5 Watts per transducer
Dimensions 225 x 65 x 115(mm)
Weight 1250 gms

Procedure for Installing MASER TAILOR MADE MODEL I

  1. Select a location for Maser TM-I or TM-II Controller in the problematic area. Adequate ventilation of the TM- I and TM-II controller is a must.
  2. Connect the equipment to a 230 VAC supply.Check for proper earthing before connecting the controller. Also check for proper A.C voltage i.e. 220/230 V.
  3. The transducers have to be fixed at a height of 10 to 12 feet from the ground level, in the main room, and the distance between the transducers should be maximum 20 feet.
  4. Install the transducers as per the markings on your floor plan.
  5. The transducer comprises of 2 parts, Pry open the bottom lid of the transducer to connect the cables with the help of screws provided.The bottom lid of the transducer is to be fixed to the wall/ceiling/flooring and the top part of the transducer is to be press fitted to the bottom lid.
  6. The transducers in the main room / ceiling should face a wall or an obstructing surface and not open ar4eas such as open doors windows etc so that maximum bouncing effect is attained.
  7. The transducers have to be looped to the controller if the controller is TM-II
  8. Only 2 additional transducers can be connected to a TM-II Controller and 1a additional transducer can be connected to a TM-I controller. The cables need to be encased in a PVC/GI/ conduit pipe.
  9. Continuity test to be done with the help of the test swtich provided in the front panel of the system.
  10. All conduiting to be done aesthetically.
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