Indoor and outdoor Ambient temp. sensor resistance Vs. temp. deg (15K) 
deg(℃) 
resistance
(kΩ) 
deg(℃) 
resistance
(kΩ) 
deg(℃)
resistance
(kΩ) 
 
deg(℃) 
resistance
(kΩ) 
-19 138.100   20 18.750   59 3.848    98 1.071  
-18 128.600   21 17.930   60 3.711    99 1.039  
-17 121.600   22 17.140   61 3.579    100 1.009  
-16 115.000   23 16.390   62 3.454    101 0.980  
-15 108.700   24 15.680   63 3.333    102 0.952  
-14 102.900   25 15.000   64 3.217    103 0.925  
-13 97.400   26 14.360   65 3.105    104 0.898  
-12 92.220   27 13.740   66 2.998    105 0.873  
-11 87.350   28 13.160   67 2.896    106 0.848  
-10 82.750   29 12.600   68 2.797    107 0.825  
-9 78.430   30 12.070   69 2.702    108 0.802  
-8 74.350   31 11.570   70 2.611    109 0.779  
-7 70.500   32 11.090   71 2.523    110 0.758  
-6 66.880   33 10.630   72 2.439    111 0.737  
-5 63.460   34 10.200   73 2.358    112 0.717  
-4 60.230   35 9.779   74 2.280    113 0.697  
-3 57.180   36 9.382   75 2.206    114 0.678  
-2 54.310   37 9.003   76 2.133    115 0.660  
-1 51.590   38 8.642   77 2.064    116 0.642  
0 49.020   39 8.297   78 1.997    117 0.625  
1 46.600   40 7.967   79 1.933    118 0.608  
2 44.310   41 7.653   80 1.871    119 0.592  
3 42.140   42 7.352   81 1.811    120 0.577  
4 40.090   43 7.065   82 1.754    121 0.561  
5 38.150   44 6.791   83 1.699    122 0.547  
6 36.320   45 6.529   84 1.645    123 0.532  
7 34.580   46 6.278   85 1.594    124 0.519  
8 32.940   47 6.038   86 1.544    125 0.505  
9 31.380   48 5.809   87 1.497    126 0.492  
10 29.900   49 5.589   88 1.451    127 0.480  
11 28.510   50 5.379   89 1.408    128 0.467  
12 27.180   51 5.197   90 1.363    129 0.456  
13 25.920   52 4.986   91 1.322    130 0.444  
14 24.730   53 4.802   92 1.282    131 0.433  
15 23.600   54 4.625   93 1.244    132 0.422  
16 22.530   55 4.456   94 1.207    133 0.412  
17 21.510   56 4.294   95 1.171    134 0.401  
18 20.540   57 4.139   96 1.136    135 0.391  
19 19.630   58 3.990   97 1.103    136 0.382