IN 5/5測溫儀以及IN 5/5 plus系列儀器專用於非接觸式測量玻璃表面和石英表面的溫度。

這些儀器的規格有所不同：

IN 5/5是一款雙線制數位式測溫儀，採用數位信號處理電子技術，具有高精度、連接簡便的特點，只需兩根線連接。

除類比輸出外，數位式plus型測溫儀還配備了一個數位介面，可連接電腦顯示和存儲測溫資料。此外，還有不同的溫度範圍可選，更可用電腦對儀器參數進行遠端設置。

IN 5-L plus機型配備了有更好測量視域的光學鏡頭，用於小目標物體的測量。

IN 5-H plus高速機型具有10毫秒的超快曝光時間，適用於快速測量任務。
為了滿足不同的測量需要（測量物體的尺寸、距離等），有多種鏡頭可供選擇。

為了精確瞄準測量物體，大部分的plus機型還配備了鐳射靶光。

IN 5/5系列：雙線制測溫儀，配備4-20 mA類比輸出，有不同溫度範圍可選
數位線性輸出實現高精度
曝光時間可調
外殼小巧

Temperature range: (MB 6)   100 to  600°C                      
(MB 8)   200 to  800°C                        
(MB 13) 100 to 1300°C                       
(MB 25) 400 to 2500°C                       
(Other MB on request)
 
Sub range: The plus instruments are user adjustable with minimum span of 51°C
Spectral Range: 5.14 μm
IR Detector: Thermopile
Data handling: Digital
Optics: Zinc-Sulfide lens (ZnS)
Power Supply: : 24 V DC (10 to 30 V)
Power Consumption: max. 20 mA
Analog Output: 4 to 20 mA (linear)
Load: max. 700 Ω at 24 V (max. 100 Ω at 12 V)
Parameters Adjustable on the pyrometer: Emissivity, exposure time.
Emissivity ε: 0.2 ... 1 adjustable
Exposure Time t90: 0.08 s; adjustable in the pyrometer: 0.5 s; 1 s; 2 s; 5 s,
Measurement Uncertainty:

Dependent on object temperature T and
ambient temperature Tamb (ε= 1, t90= 1s)
 
 T < 1300°C:              0.6% (IN 5/5-Lplus: 0.8%) of reading in °C or 2°C (Tamb=15 to 30°C) *)
                                  1% of reading in °C or 1.5°C (Tamb=0 to 15 or 30 to 63°C) *)
T=1300 to 1800°C:  0.8% of reading in °C (Tamb=15 to 30°C)
                                  1.2% of reading in °C (Tamb=0 to 15 or 30 to 63°C)
T=1800 to 2500°C:  1% of reading in °C (Tamb=15 to 30°C)
                                  1.4 % of reading in °C (Tamb=0 to 15 or 30 to 63°C)

*) Whichever value is greater. The instrument must be at a constant ambient temperature for a minimum of 15 minutes (30 min for IN 5/5-L plus for 200 to 1300°C at Tamb = 0 to 15 or 30 to 63°C) and has to be connected to the power supply.
 
Repeatability: (ε = 1, t90= 1 s)
  0.3% of reading in °C or 0.6°C
(Whichever value is greater. The instrument must be at a constant ambient temperature for a minimum of 15 min. (30 min for IN 5/5-Lplus for 200...1300°C at Tamb= 0 to 15 or 30 to 63°C)
 
Noise Equivalent Temperature Difference
(NETD): (ε = 1, Tamb= 23°C) At t90= 80 ms: 0.7°C (at 110°C measuring temperature)
At t90= 1 s: 0.4°C (at 110°C measuring temperature)
Ambient Temperature: IN 5/5: 0 to 70°C
Storage Temperature: -20 to 70°C
Housing: Stainless steel
Weight: 410g
Protection class: IP65 (DIN 40050)
Relative humidity: Non condensing conditions
CE-label: According to EU directives about electromagnetic immunity