Features:
Red warning light.
High accuracy and easy operation.
Blue digital LED readout, which allows for easy viewing at all angles during all lighting conditions.
New generation of products, stronger shockproof, lighter quality, more durable.
This item is universal fit for most 12V vehicles, including other cars which are not on the Compatibility list of this page.
  
Specifications:
Color: Black face, Blue LED
LCD Size: 52mm / 2in.
Unit: Celsius Degree
Measurement Range: 40~150 Celsius Degree
Alarm Value: ≥100℃ 
Power: 12V DC, Max. 0.3A

Wiring Instruction:
Red -- 12V accessory Power(+)
Black -- Ground negative(-)
Green -- Temp Sensor (connect to green wire from sensor)

Material: Aluminum + Stainless Steel (Clamps)
Color: Blue
Outside Size: 40mm ( We also have this item in 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 42mm in our eBay store )
 
Package Included:
1 X Water Temp Gauge
1 X Water Temp Sensor
1 X Instructions(English)
1 x Water Temp Joint Pipe
2 x Clamps
 
Note:
For any inquiries or special requests such as larger amount ordering please write to us.
When initially powered on, the gauge displays an opening ceremony which calibrates the gauge to ensure accurate reading 
Please check and confirm the size before purchasing.    In account of the elasticity of the car water pipes, so recommend you choice a little bigger model than your car water pipes.    Such as if your car water pipe internal diameter is 27mm/1.06", then 28mm/1.10" internal diameter joint pipe is perfect.
Easy to install, but professional installation is highly recommended.