what brand co2 monitor is this ???

I've looked all over the internet without any luck.
anyone know what company makes this co2 monitor ? any help will be appreciated.

hope this helps
CO2 Controller for Greenhouse
Place of Origin:ChinaModel Number:F2000 IAQ-CO2-5202S
Certification:ISO9001Brand Name:TONGDY

Company Info
Company Published: 2004
Online Postings: Products (94), Selling Leads (174)
Country/Territory: China
Business Type: Manufacturer
Number of Employees: 51 - 100 People
Contact this Member
Offlinehttp://trademanager.alibaba.com/http://us.my.alibaba.com/mcweb/contact.htm?action=mcweb:contact_action&domain=1&id=50314107View Contact Details