Gecko Circuit Board Sensors
To help identify which sensor you need look on the back cover or the right side of the main control box. You will find the Model & Options code.
Note what call letters the code starts with. For example SC-CF-P121-B1-01-LS-H4.0-AMP-XXX would be considered a S-Class control box.
Another example would be MSPA-MP-P122-P212-P312-O1-CP1-NE-L1-HLG-FB1-RTC-LS-JJM-MA3, this is a M-Class "MP". The final example shows that it is also an M-Class but has a possibility of the #1, #2 or #4 following the MSPA in this case the #1 (MSPA-1-P122-P222-B2-O1-FB-LS-H5.5-JJM-RL-AL).
Click here to see all the Gecko Sensors.
OEM Gecko Temp Sensor SSPA & MSPA 10' With 4 Pin Plug 9920-400262
Temp Sensor Gecko SSPA-SC-CF-MSPA-MP
2" Bulb Length 3/8" Diameter
10' Wire Length
2" Bulb Length 3/8" Diameter
10' Wire Length
TEMP SENSOR Gecko SSPA/MSPA-MP 25' With 4 Pin Plug 9920-400720
Temp Sensor Gecko SSPA-SC-CF-MSPA-MP
2" Bulb Length 3/8" Diameter
25' Wire Length
3 Wire 4 Pin Connector
2" Bulb Length 3/8" Diameter
25' Wire Length
3 Wire 4 Pin Connector
TEMP SENSOR Gecko MSPA1-2-4-TSPA 25' 4 Pin 9920-400245
Temp Sensor Gecko MSPA-1-2-4-TSPA
2" Bulb Length 3/8" Diameter
25' Wire Length
3 Wire 4 Pin Connector
2" Bulb Length 3/8" Diameter
25' Wire Length
3 Wire 4 Pin Connector
Part #: 9920-400245
$65.00
Out of Stock
HI-LIMIT SENSOR Gecko 48'' With 2 Pin Plug 9920-400446
Hi Limit Sensor Gecko SSPA & MSPA Packs
1-1/2" Bulb Length 1/4" Diameter
48" Wire Length
2 Wire 2 Pin Connector
1-1/2" Bulb Length 1/4" Diameter
48" Wire Length
2 Wire 2 Pin Connector
HI-LIMIT SENSOR 14" Gecko M-CLASS/TSPA 4 Pin Plug 9920-400122
Hi Limit Probe Gecko MSPA-1-2-4/TSPA
1-1/2" Bulb Length 1/4" Diameter
14" Wire Length
3 Wire 4 Pin Connector (With Blind 4 Position)
1-1/2" Bulb Length 1/4" Diameter
14" Wire Length
3 Wire 4 Pin Connector (With Blind 4 Position)
HI-LIMIT SENSOR Gecko 76" M-CLASS/TSPA 4 Pin Plug 9920-400684
Hi Limit Sensor Gecko MSPA-1-2-4/TSPA
1-1/2" Bulb Length 1/4" Diameter
76" Wire Length
3 Wire 4 Pin Connector (With Blind 4 Position)
1-1/2" Bulb Length 1/4" Diameter
76" Wire Length
3 Wire 4 Pin Connector (With Blind 4 Position)
Gecko Dual Sensor Temp/Hi limit Sensor For IN.YJ Systems 9920-401397
For Gecko IN.Y Systems - This sensor is a dual sensor. It replaces both the Temperature Sensor and Hi-Limit Sensor
2" Bulb Length 3/8" Diameter
3 Wire 4 Pin Connector
2" Bulb Length 3/8" Diameter
3 Wire 4 Pin Connector