Page 1
Precision Linear
Thermistor Sensors
General Purpose Sensors
Shown Can Be Buried for
Measuring Soil Temperatures
or Used in a Variety
of Applications
U 3 m (10') of PVC Insulated
Cable and Phone Plug
Connector Standard
U Temperature Range
0 to 100°C (32 to 212°F)
U Interchangeability
±0.15°C
OL-701 and OL-702 Series
U Contain 2 Thermistor
Sensors—Combined
with Matching Resistor
Sets They, Provide a
Linear Response to
Temperature (vs. the
Non-Linear Response
Provided By Most
Thermistors)
Dimensions: mm (inch)
Supplied with 3 m (10') PVC
insulated and jacketed cable.
OL-701 shown actual size.
25.4 (1)
To Order
Thermistor Resistance #1 Resistance #2
Model No. Sensor Type Model Number @ 25°C @ 25°C Termination
OL-701 Vinyl-sleeved tip 44018 6000Ω 30000Ω Stripped leads
OL-701-PP Vinyl-sleeved tip 44018 6000Ω 30000Ω Phone plug
D
Dimensions: mm (inch)
OL-701-V shown actual size.
3.6 (
9
) diameter
⁄
64
Supplied with 3 m (10') PVC
insulated and jacketed cable.
5
7.9 (
⁄
16
maximum
)
1
6.4 (
) maximum
⁄
4
Thermistor Resistance #1 Resistance #2
Model No. Sensor Type Model Number @ 25°C @ 25°C
OL-701-V Vinyl tipped 44018 6000Ω 30000Ω
Dimensions: mm (inch)
Supplied with 3 m (10') PVC
insulated and jacketed cable.
OL-702 shown actual size.
17
6.9 (
) diameter approximately
⁄
64
4.0 (
5
) diameter
⁄
32
1
3.0 (
⁄
8
371.6 (14.63)
) diameter
7.1
9
(
)
⁄
32
9
3.6 (
)
⁄
64
Thermistor Resistance #1 Resistance #2
Model No. Sensor Type Model Number @ 25°C @ 25°C
OL-702 Vinyl tipped 44018 6000Ω 30000Ω
Ordering Example: OL-701, vinyl sleeved tip sensor with 44018 thermistor and 3 m (10') of PVC insulated cable.
D-50
Page 2
Linear Response Probes Series 700
)
-OL708
DIM
Series 700 Temperature Probes use the 44018
thermistor composite as the temperature sensor.
On special order, probes can also be built with 44019
Probes is to provide a complete probe assembly
for use with the circuits accepting the 44018 or
44019A thermistor composite.
thermistor composite. The purpose of the Series 700
To Order
Configuration Model Number Description
1''
and sub-soil readings. Most rugged. probe.
OL-701
General Purpose. Used for short-term water
Waterproof construction.
3.6 (9/64) D
OL-701-V
vinyl tipped version of above model.
OL-702 Small Flexible. Vinyl sheath and tip. Cuvette
5.6
temperatures. General purpose measurement.
7
(
/32) D
3.2
1
(
/8)
OL-731 General Purpose. Non-immersible, epoxy tipped
probe. Can be plotted in place. Probe is suitable
3.2
for temperature measurement on surfaces.
1
(
/8)
OL-708 “Banjo” Surface Temperature. Water bath, air
surfaces temperatures. Stainless steel.
OL-709 Attachable Surface Temperature. Stainless
7.9 (5/16) Max
330 (13)
9
(
/32)
7.1
10.3
5
2 (
/64)
5
92 (3
11 (7/16) D
6.4
610 (24)
(13
/32) D
17 Gauge
/8)
mm (inches)
(1
/4) Max
4.0
7.9
5
/16) D approx
(
mm (inches
mm (inches)
38 (11/2)
5
(
/32) D
General Purpose.
Water resistant, soft, flexible,
steel cup, epoxy backed. Easy to tape on flat
surfaces. Good for heat loss or compression
efficiency study of piping.
3.2 (
1
/8)
mm (inches)
4.8
3
(
/16) D
OL-729 Small Surface Temperature. Cuvette, water,bath,
leaf and other surfaces. 610 mm (24") PFA-covered
flexible wire. Stainless steel disc with epoxy back.
13
1
(
/2) D
OL-705 Air Temperature. Stainless steel probe suitable
1.6 (1/16)
MAX
610 (24)
3.2 (
1
/8)
mm (inches)
32
1
(1
/4)
for test rooms, incubators, remote air readings,
OL-706 monitoring of gas streams. etc.
OL-706 has an economical plastic housing.
OL-703 Tubular. Stainless steel probe for rugged duty.
Often used for liquid immersion. Probe is
immersible only to cap.
114 (4 1/2)
3.2 (1/8) D
5.6 (0.220)
mm (inches)
22.2
7
/8)
(
mm (inches)
OL-704 Tubular-Glass. Chemically inert for liquid
immersion use. Thermometric titration. Freezing
point determination. Pyrex, 127 mm (5") long.
9
/16
OL-710 Tubular With Fitting. Rugged, stainless steel
4.8 (3/16) D
114 (41/2)
probe with pipe fitting. Suitable for taking
readings in pipes or inside closed vessels.
1
/8 NPT
3.2 (1/8) D
D-51
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