
tiger grouper + giant grouper

This is a good guide book if one need to renovate to improve conditions of BH.
  Guide on how to choose and install nesting planks for maximum productivity.
A very useful guide book with many charts on how to build and operate a swiftlet farms.
 A book written by Drh.E.Nugroho,Drh.I.Whendrato and I.M.Madyana.
 A book about technics to lure swiftlets to stay in new farm.
 The best method to install planks to maximise productivity.
A good guide book with sketches and photos.
A book by Redaksi AgroMedia in Bahasa Indonesia.
Author : KO. Abeng.
 Author: Hary Kusumo Nugroho,MBA.
 Author : Drs. Arief Budiman.Total pages:62.A book in Bahasa Indonesia.
 One of the best book with lots of informations from Indramayu.
 Authors: H.Achmad Fatich Marzuki,H.Sunu Kuntjoro,Hj. Masnunah Hanim & Yustina Erna Widyastuti.Total pages:80.Written in Bahasa Indonesia.
 Written in Bahasa Indonesia by Philip Yamin and Eka Setia Sukma.Total pages:78
 Authors:Philip Yamin and Rudi Hartono.Total pages:72.Written in Bahasa Indonesia.
 A book by Redaksi Trubus.Written in Bahasa Indonesia.Total pages : 152
 Author:Drs.Arief Budiman.Total pages:68.Written in Bahasa Indonesia.

 Dimension : 22cm x 8cm.Suitable as External Tweeter.Waterproof.
 Size: 3" x 3".Clear sounding to attracts birds more efficiently.Durable and long lasting.Best use with capacitor.
 Size:3" x 3".Good quality tweeter suitable for external and internal use.Clear sounding.Very suitable to be used in roving room.
 Built in 6 water tweeters with mesh.Stainless steel frame.Quality speaker wire used for connection.Easy to join with pole.Easy to change tweeter as well.This tweeter is only suitable for external used.Normally install on roof top to attract birds from all corners.Very effective in pooling birds and widely use in Malaysia and Indonesia.
 4 readings appear on the screen at once.Hygrothermometer can be place in data room where one does not need to go inside a BH to know the reading of temperature and humidity.Min/Max record