© 2020 tekmar 087_D - 02/20
7 of 8
Wireless Outdoor Sensor 087
Literature
087_D, 087_C
Dimensions
Transmitter: 5–3/16" H x 2–3/4" W x 2" D (132 x 70 x 50 mm)
Receiver: 4–3/4" H x 2–7/8" W x 7/8" D (120 x 74 x 23 mm)
Enclosure
Transmitter: White ABS plastic, NEMA 4X
Receiver: White PVC plastic, NEMA Type 1
Packaged Weight 0.92 lb. (420g)
Sensor
NTC thermistor 5K, 10K Type 2, 10K Type 3, 12K and 20K
Approvals
FCC and IC
Operating range Transmitter: -40 to 140°F (-40 to 60°C)
Receiver: Indoor use only, 32 to 122°F (0 to 50°C), RH ≤90% non-condensing
Receiver power 24 V (ac) +/- 10%, 1 VA
Technical Data
Resistance
Temperature
168243
-40°F (-40°C)
121342
-31°F (-35°C)
88487
-22°F (-30°C)
65210
-13°F (-25°C)
48540
-4°F (-20°C)
36479
5°F (-15°C)
27666
14°F (-10°C)
Resistance
Temperature
21166
23°F (-5°C)
16325
32°F (0°C)
12698
41°F (5°C)
9952
50°F (10°C)
7857
59°F (15°C)
6247
68°F (20°C)
5000
77°F (25°C)
Resistance
Temperature
4028
86°F (30°C)
3265
95°F (35°C)
2663
104°F (40°C)
2184
113°F (45°C)
1801
122°F (50°C)
1493
131°F (55°C)
1244
140°F (60°C)
5K NTC Thermistor
ON
Resistance Temperature
309396
-40°F (-40°C)
229504
-31°F (-35°C)
171839
-22°F (-30°C)
129824
-13°F (-25°C)
98932
-4°F (-20°C)
76018
5°F (-15°C)
58878
14°F (-10°C)
Resistance Temperature
45953
23°F (-5°C)
36129
32°F (0°C)
28606
41°F (5°C)
22804
50°F (10°C)
18297
59°F (15°C)
14773
68°F (20°C)
12000
77°F (25°C)
Resistance Temperature
9803
86°F (30°C)
8053
95°F (35°C)
6651
104°F (40°C)
5522
113°F (45°C)
4607
122°F (50°C)
3862
131°F (55°C)
3252
140°F (60°C)
12K NTC Thermistor
ON
Resistance Temperature
806800
-40°F (-40°C)
574400
-31°F (-35°C)
413400
-22°F (-30°C)
300400
-13°F (-25°C)
220600
-4°F (-20°C)
163500
5°F (-15°C)
162280
14°F (-10°C)
Resistance Temperature
92240
23°F (-5°C)
70160
32°F (0°C)
53780
41°F (5°C)
41560
50°F (10°C)
32340
59°F (15°C)
25360
68°F (20°C)
20000
77°F (25°C)
Resistance Temperature
15892
86°F (30°C)
12704
95°F (35°C)
10216
104°F (40°C)
8264
113°F (45°C)
7220
122°F (50°C)
5498
131°F (55°C)
4520
140°F (60°C)
20K NTC Thermistor
ON
