EF Technologies Smoothie

This timer, supplied by EF Technologies, is designed for electric power and rubber models. Features:

• it only needs two button pushes to restart after d/t. It does not need to be powered on and on again before it will restart. As a consequence it may not be legal for F1Q because in my opinion it is too easy to restart after a flight.
• it has separate timers for power run and d/t
• both timers can be set from zero to 999 seconds in 1 second increments.
• the electric motor power can be set in 5% increments.
• timer setting and flight operation is via on-board buttons though the start button can be remote.
• it supports both brushed and brushless motors.
• small brushed motors that draw only one or two amps can be controlled directly by the timer.
• larger brushed motors, such as a Speed 400, require an external ESC to be used.
• brushless motors always require an ESC.
• it can use a servo or a hot wire for d/t.
• if a servo is used it can only be driven from one limit to the other, so it can not be used for VIT and AR.
• the PCB weighs under 4 grams.
• the timer runs off 1 to 3 Li ion batteries. It isn't clear whether it can be powered by a BEC equipped ESC: if this isn't possible then the timer can not be used for F1Q

There is also a d/t only version that would suit rubber models: it has just a d/t timer and hot-wire d/t.