本款DT-129型是測量木材的濕度計。該儀表有八個校準刻度，能準確測量達150種木材種類。濕度計既可用完整的針形探針，也可用耐用的濕度探針測量。

DT129木材濕度測試儀技術指標：
濕度測量量程: 6%~100%
濕度分辨率: 0.1
濕度測量精度: ±1%( 6%~40%)
溫度測量量程: -35°C~80°C
溫度分辨率: 1 (<=-10°C)   0.1(>-10°C)
溫度測量精度: ±2°C
整機電流: <8mA
關機電流: <3uA
低電顯示: <2V時顯示低電符號
 
DT系列水分儀/濕度測試儀有多種型號，如：DT-129、DT-125、DT-123、DT-125H、DT-128M （注：各型號參數不同即價格不同，如需其他型號請聯系銷售經理）
木材種類總表：
厚葉緬茄木                                        
青龍木                                             
美國白蠟木                                        
歐洲白蠟木                                        
日本白蠟木                                        
輕木                                                
美國椴木                                          
歐洲山毛櫸                                        
歐洲白樺                                           
黃白樺                                             
苦木                                                
黑基木                                             
委內瑞拉灣黃楊木                                
非洲樟木                                          
日本雪松/杉木                                     
印度雪松                                          
美國側柏                                          
歐洲櫻桃木                                        
栗木                                              
角瓣木                                            
非洲針葉樹                                        
日本針葉樹(8-18%mc)                              
日本針葉樹(18-28%mc)                             
花旗松                                            
日本榆木                                          
英國榆木                                          
低地冷杉                                          
白榆木                                            
雪里紅樹木                                        
冷杉木                                            
北美冷杉                                          
紅冷杉                                            
西印度及南美樟木                                  
黑木                                              
美國赤橡膠                                        
美國南部橡樹                                     
樹膠斑                                            
古蕓香                                            
加洲鐵杉                                          
山核桃木                                          
伊洛可木                                          
鐵皮木                                            
紅柳桉樹                                         
節路頓膠                                          
考里木                                            
新西蘭貝殼杉                                      
澳洲貝殼杉                                        
歐洲落葉松                                        
日本落葉松                                        
西部落葉松                                        
椴木                                             
非洲桃花心木                                      
西印度桃花心木                                    
瑪可里木                                         
太平洋槭                                          
澳洲槭                                            
黑槭                                              
糖槭                                              
梅蘭蒂木                                          
白梅蘭蒂木                                        
塔斯馬尼亞桃金娘科植物                            
美國赤橡木                                        
美國白橡木                                        
歐洲橡木                                          
日本橡木                                          
塔斯馬尼亞橡木                                    
土耳其橡木                                        
歐斐切木                                          
非洲橄欖樹                                        
非洲紫檀                                          
柿子樹                                            
美國長葉松                                       
美國松樹木                                        
松樹/大葉南洋杉                                   
加勒比海松樹/樹脂                                 
科西嘉的松樹                                      
富蘭克林氏淚柏/松樹                               
日本黑松                                          
貝殼杉                                            
黑松                                              
海松                                              
新西蘭白松                                        
尼加拉瓜松樹/樹脂                                 
巴西杉                                            
西黃松                                            
輻射松                                            
赤松                                              
蘇格蘭松                                          
蘭伯氏松                                          
黃松                                              
黑楊                                              
非洲有翅亞綱                                      
彬加都木                                          
澳洲貝殼杉                                        
澳洲胡桃木                                        
歐洲紅杉                                         
加洲紅杉                                          
印度紫檀                                          
橡木                                              
沙貝列木                                          
蓖麻葉刺人參                                      
馬來紅柳桉                                        
非洲銀樺樹                                        
澳洲銀樺樹                                        
日本云杉(8-18%mc)                                
日本云杉(18-28%mc)                               
歐洲云杉                                          
西岸云杉                                          
澳洲桉樹                                         
澳洲黃桉樹                                        
棕色梧桐                                          
無花果樹                                          
西門木                                            
柚木                                              
桃拓羅漢松                                        
松節油                                            
烏梯列木                                          
非洲胡桃木                                        
美國胡桃木                                       
歐洲胡桃木                                        
新幾內亞島胡桃木                                  
澳洲胡桃木                                        
瓦瑪拉木                                          
鞣桉                                             
白色木材                                          
紫杉                                              

       儀表使用完后，連同配件一起放入袋子里。把它們儲存在穩定的，無塵的環境里，避免太陽照射。若長時間不用（如一個月以上）或顯示屏顯示低電量符號時應取出電池。檢查儀表的配件，老化或破損時應該更換。