Weighing in at a scant less than 75 grams, the HERO3 is 25% lighter and 30% smaller than previous models - but that's not all...
The new HERO3s are slimmer than the previous model [20mm].&nb
Solenoid Testing Procedure It is easier to remove the solenoids for a thorough check. This serves two purposes as you have an opportunity to clean and ensure all electrical connections