GM816 LCD Digital Wind Speed Scale Gauge Meter Anemometer Thermometer - 3V CR2032 battery INCLUDED - Ideal Tool for Windsurfing, Sailing, Fishing, Kite Flying and Mountaineering

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Price: $11.04 $9.87   

Product Feature

• Air velocity and temperature measurement
• Ideal tool for windsurfing, sailing, fishing, kite flying and mountaineering
• Also use it for industrial and home purpose such as measuring wind speed and temperature of CPU computer fans, air blower
• LED back light design for operation under poor illumination
• Wind chill indication and Beaufort scale

Product Description

High precision pressure sensor.
Quick response, external thermistor.
Auto/manual power off.
Temperature display in Celsius Fahrenheit.
Wind speed range: 0-30m/s
Wind temperature range: -10 - 45? (14-113F)
Current/max/average wind speed reading.
Wind speed unit: m/s, Km/h, ft/min, Knots, mph.
Powered by a 3V CR2032 battery.

Specifications:

Air Velocity
Range: 0 - 30m/s, 0 - 90km/h, 0 - 5860ft/min, 0 - 65mph, 0 - 55Knots
Resolution: 0.1m/s, 0.3km/h, 19ft/min, 0.2mph, 0.2Knots
Threshold: 0.1m/s, 0.3km/h, 39ft/min, 0.2mph, 0.1Knots
Accuracy: +/- 5%

Air Temperature
Range: -10?C ~ +45?C, 14?F~ 113? F
Resolution: 0.2?F, 0.36?F
Accuracy: ?2?F, ?3.6?F
Thermometer: NTC Thermometer
Operating Temperature: -10?C ~ +45?C (14?F~ 113? F )
Operating Humidity: Less than or equal to 90% RH
Storage Temperature: -40?C ~ +60?C, -40?F ~140?F
Current Consumption: About 3mA

Package Contents:
Lanyard
GM816 Digital LCD Wind Speed Gauge

GM816 LCD Digital Wind Speed Scale Gauge Meter Anemometer Thermometer - 3V CR2032 battery INCLUDED - Ideal Tool for Windsurfing, Sailing, Fishing, Kite Flying and Mountaineering Review

My impressions after setting this up:

While it's nice that they include a battery in the package, it is not easy to figure out how to insert that battery into the unit to get it working. Nothing about how to insert the battery is in the instructions -- frustrating. So here are some tips for other buyers:

1) Peel off the orange cover so that it separates from the black unit.
2) Use a coin (a quarter for US users) to unscrew the battery cover. Move it back and forth several times, opening and closing the cover, to loosen up the plastic cover a bit.
3) Get a standard screwdriver with a thin blade, and gently pry open the cover.
4) Insert the battery so that the "+" is facing up.
5) Batter cover back on with your coin.
6) Test out unit by pressing MODE button for two seconds.
7) Using a paperclip, change the Temperature unit to Fahrenheit if desired.
8) Put orange plastic cover back on.

At this point, you can follow the instructions to finish setting up the unit. They are written in Borat English so they aren't the clearest instructions I've ever read.

Other thoughts:

Unit is thicker than I expected. If you want to put this into a coat pocket or lifejacket it will be somewhat bulky.

Save the instructions, clunky as they are, since it isn't all that easy to figure out how to use the device. Here are two examples:

Example one: there's no ON button -- instead you press MODE for two seconds to turn on. (ProTip for the designers of this product: Buttons that turn on a device are usually labelled "ON". Weird convention, I know.)

Example two: if you turn on the unit by pressing mode for two seconds, how do you think you'd turn it off? You'd think it's by pressing MODE for two seconds. But nope, that'd be two easy. You press MODE and SET at the same time. Obviously! (ProTip for the designers: ON buttons usually turn a device on AND off. You know, like a light switch or a laptop.)

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