Manufactured by Rochester Gauges in Dallas, TX., this Hall Effect TwinSite dial capsule is a Sr. size voltage output sender with potted lead wires and ships with (2) stainless steel mounting screws.  The back of the dial has the markings 5AAJS02770 while the front has 5-2770.  This part is compatible with a variety of Rochester Gauges fuel senders. 
- Solid state technology with no moving parts
- Operating Temperature:  -40 to 176 degrees Fahrenheit.  
- Accuracy:  +/-4% (Float gauge errors not included.)
- Hysteresis:  Less than 1% typical.
- Repeatability:  +/-1%.
- Operational Range:  8-32 vdc.
- Output Voltage:  E=0.5 V, F=4.5 V
- Resolution:  Infinite.
- 5AAKS02770P, RGI5AAKS02770P