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FAA Approved for all certified aircraft. Holy Micro! LLC’s SkyVoice altimeters offer cutting-edge technology to ensure safer take-offs and landings. These devices provide accurate height call-outs, gear reminders and many user selectable reminders helping prevent gear-up landings and enhancing overall safety in flying. 1. SkyVoice Alert 500 (LiDAR Altimeter) The SkyVoice Alert 500 is a Take-off and Landing Height Announcer with LiDAR range of 590 ft and height call-outs range from 500 ft to 1 ft. It provides continuous gear warnings from 560 ft until the gear is down and locked. Bluetooth or wired, HUD options, includes many user selectable reminders like Check Gear, Checklist, LC GUMPS, Flaps, Speed, Clearance, Prop and Pump on take-off and landing. GPS/MSL Height call-outs from 18000 ft to 500 ft & GPS based reminders like Check Oxygen, IFR Altimeter, Clearance, Prop & Top of descent. Run-time reminders like Check Tank and Check Fuel. 2. SkyVoice Glassy Guide 400 (RADAR Altimeter) Designed for Seaplanes, the SkyVoice Glassy Guide 400, a Take-off and Landing Height Announcer with RADAR range of 400 ft, accurate over both water and land. Bluetooth or wired, HUD options, and provides many user selectable Reminders like Check Gear, Checklist, LC GUMPS, Flaps, Speed, Prop, Clearance and Pump to help you for safer take off and landings. It announces GPS/ MSL Height call-outs from 18000 ft to 500 ft & GPS based reminders like Check Oxygen, IFR Altimeter, Clearance, Prop & Top of descent. Run-time reminders like Check Tank and Check Fuel. 3. SkyVoice Glassy Guide 400 Portable ((RADAR Altimeter) The SkyVoice Glassy Guide 400 Portable is a Take-off and Landing Height Announcer with RADAR range of 400 ft, it connects to your audio panel via Bluetooth and comes with a rechargeable battery for easy, portable use. User can set up to four "Check Gear" reminders for different heights from the list of 400, 300, 200 and 100, includes many user selectable reminders on take-off and landing like Check Gear, Checklist, LC GUMPS, Flaps, Speed, Prop, Clearance and Pump. Run-time reminders like Check Tank and Check Fuel. It’s ideal for testing before permanent installation. Choose SkyVoice for reliable and precise height call-outs and enhanced safety. Visit our website to learn more – www.holymicro.com Stack the odds in your favor. Install SkyVoice. Fly Safely.

My landing gear aural warning was becoming quirky. Occasionally, it wouldn't sound at all, but most of the time it would, but when the throttle was pushed forward, it would take almost full throttle before the horn would stop. Something was not right. My 74 C has electric gear, a throttle quadrant and uses a squat switch, not an airspeed switch in the warning circuitry. There are lots of iterations of the landing gear warning system, but if yours matches mine, I hope you find this of use. To make a long story short, there were simultaneously two issues: 1. The throttle micro switch had gone out of rig. 2. The sonolert was failing. I took some pictures while I had the quadrant apart and found that there is a small access to the micro switch from the left side of the quadrant under the panel material. One does not have to open up the entire quadrant to get to it, but only minor adjustments can be made through the access hole. My aircraft has two sonolerts. On the pilots side is the stall warning horn. On the copilot's side is the gear warning horn. it is a Mallory SC628P. I found new ones on eBay for less than $15. I uploaded the pictures to Mooneyspace at: