Thermocouple types R with Refractory Cotton is the consumable accessory of portable thermometer and wireless thermometer.
Advantages: 
1. Complete specification of SP-W, SP-3W, SP-G, CE-3W, quartz-W, quartz-G. 
2. Japan-imported couple wire. 
3. High accuracy, rapid reaction, reliability, stability, smooth cooling curve and good reproductivity. 
4. Sold to Japan, Korea, Thailand, Malaysia, Taiwan etc. 
5. can work more than 5 times per pieces.
Platinum-13%rhodium/Platinum Thermocouple Wire
Standard: GB/T 1598-1998
1. Composition
Product Name
Polarity
Code Name
Chemical composition %
Pt
Rh
13%rhodium/Platium
thermocouple wires
Anode
RP
87
13
Platinum
Cathode
RN
100
/
2. Recommend Max. temperature been used
Wire Diameter
Max. temperature for long term
Max. temperature for short term
0.5mm
1400 Degree
1600 Degree
3. Size
Wire diameter:0.5mm, Tolerance:-0.015mm
4. Platinum Purity
We use power resistance proportion (R100/R0) to describe the purity
R100/R0 bigger than 1.3922
Remarks: R100 means the power resistance at100 D
R0 means the power resistance at0 D

Except Types R thermocouple, we also have Types S thermocouple, Types K thermocouple for your option.