Indoor and outdoor Tube temp. sensor resistance Vs. temp. deg (20K) 
deg(℃) 
resistance
(kΩ) 
deg(℃) 
resistance
(kΩ) 
deg(℃)
resistance
(kΩ) 
 
deg(℃) 
resistance
(kΩ) 
-19 181.400   20 25.010   59 5.130    98 1.427  
-18 171.400   21 23.900   60 4.948    99 1.386  
-17 162.100   22 22.850   61 4.773    100 1.346  
-16 153.300   23 21.850   62 4.605    101 1.307  
-15 145.000   24 20.900   63 4.443    102 1.269  
-14 137.200   25 20.000   64 4.289    103 1.233  
-13 129.900   26 19.140   65 4.140    104 1.198  
-12 123.000   27 18.130   66 3.998    105 1.164  
-11 116.500   28 17.550   67 3.861    106 1.131  
-10 110.300   29 16.800   68 3.729    107 1.099  
-9 104.600   30 16.100   69 3.603    108 1.069  
-8 99.130   31 15.430   70 3.481    109 1.039  
-7 94.000   32 14.790   71 3.364    110 1.010  
-6 89.170   33 14.180   72 3.252    111 0.983  
-5 84.610   34 13.590   73 3.144    112 0.956  
-4 80.310   35 13.040   74 3.040    113 0.930  
-3 76.240   36 12.510   75 2.940    114 0.904  
-2 72.410   37 12.000   76 2.844    115 0.880  
-1 68.790   38 11.520   77 2.752    116 0.856  
0 65.370   39 11.060   78 2.663    117 0.833  
1 62.130   40 10.620   79 2.577    118 0.811  
2 59.080   41 10.200   80 2.495    119 0.770  
3 56.190   42 9.803   81 2.415    120 0.769  
4 53.460   43 9.420   82 2.339    121 0.746  
5 50.870   44 9.054   83 2.265    122 0.729  
6 48.420   45 8.705   84 2.194    123 0.710  
7 46.110   46 8.370   85 2.125    124 0.692  
8 43.920   47 8.051   86 2.059    125 0.674  
9 41.840   48 7.745   87 1.996    126 0.658  
10 39.870   49 7.453   88 1.934    127 0.640  
11 38.010   50 7.173   89 1.875    128 0.623  
12 36.240   51 6.905   90 1.818    129 0.607  
13 34.570   52 6.648   91 1.736    130 0.592  
14 32.980   53 6.403   92 1.710    131 0.577  
15 31.470   54 6.167   93 1.658    132 0.563  
16 30.040   55 5.942   94 1.609    133 0.549  
17 28.680   56 5.726   95 1.561    134 0.535  
18 27.390   57 5.519   96 1.515    135 0.521  
19 26.170   58 5.320   97 1.470    136 0.509