How high is the beam spread once set on the jump or does it need to be adjusted in height to suit each jump height?

The bean can be considered a line, you would have to move depending on size.

Would also have to consider mounting on a tripod of similar in case the course finished with a tunnel for example.

It's possible, but I would recommend using jump wings. I haven't seen any course ending or starting in tunnels, not even hoopers or tunnel cups. But It can definitely be done.

How many times does it record or save in the app

Several hundreds, as much as the internal memory of the device allows.

Can the app be set up for a double pass so for instance once the starter timer has been activated the course may pass through the “finish obstacle” as part of the course before the actual finish?

Yes. there is a setting to force start / stop roles (so the timer does not stop when jumping on start a second time). There is also a setting for the number of passes at the stop gate.

Barky v4 - Dog agility timer

Description

Barky V4 uses your feedback to address the most annoying issues.

1. Simplify deployment with different mounting options, and uses magnets to easily change positions between heights. Just leave the mount there and change snap it back when needed. (clamps were hard to use and move up/down).

2. Secured 9V battery with an on-off switch. (the battery sometimes fell off and you had to remove it to preserve battery life)

3. Connection status on the large display (distance and interference from a speaker for example could disrupt the connection to the display, now it’s visible at a glance.

4. Course-walk timer available from the app. Set it for however minutes you want and it counts down without being interrupted by course-walkers.

5. The cases are now 3d-printed, thus reducing the build time and allowing us to keep the low low price.

6. Battery level available in the app, so you no longer have to wonder if you need to recharge them. (only for the gates, not the 9v batteries)

Start And Stop Sensor
It has a start sensor and a stop sensor with a small time display.

Easy Deployment
It uses small powerful magnets and adaptive clamps for most jumps. You can leave multiple clamps on jumps and just move it up and down as you need it.

Mobile Connection
It will show an wireless AP (access point) to which you can connect and see the times and configure the timers.

40 Meters Range
It has the standard range of a WIFI connection, about 40-50 meters line of sight.

10 Hours+ Charge
The included 2000mah batteries will power the sensors for more than 10 hours. The charge level in available in the phone interface.

Configurable
Ability to set power, contact time, sensor roles (if Stop can start and Start can Stop or not), course passes (after how many passes through the STOP it stops).

Weatherproofed
For an additional fee your Barky will be rain proofed. It will be sealed, openings covered and the inside electronics treated with water resistant compounds.