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Manual:
Water Temp/ Low Coolant & Oil Press
⚠ WARNING - Please Read Entire Manual Carefully!
Do not change settings while driving.
This product is designed to work with 12 Volt (v) vehicles only! This product will not operate on 6v or 24v systems.
Take care reading through this manual, if you're not sure ask JRP via Email/ FB Messenger. For best results professional installation
may be required for some components.
Do not disassemble or modify this product. Such actions will not only void the warranty, but may also damage or
destroy the product.
Do not perform installations of this product immediately after the engine has been switched off.
Engine oil and fluid in the cooling system are extremely hot at this time and can cause serious burns if touched.
➥ Main Features
High quality and accurate Water temperature, Water Detection and (Optional) Oil compatible pressure sensors.
Onboard memory battery. Gauge will retain some settings even after being disconnected from the vehicles battery.
High contrast vertically aligned Liquid Crystal Display (LCD), no shadows when backlight is turned off.
Different colour values can be chosen for night and day running mode.
⚠ Warning values can be programmed to trigger a warning buzzer with 3x different chimes. *Check after battery disconnect*
Dual warning for 2x warning buzzer can be set 4x different sound levels: Off, low, medium, high. (Read Head Guard Page 2).
Brightness can be set to 5 different values. For both night and day running mode.
3x different movements can be set for indicator display type.
Peak values obtained during operation will be stored, this can be reviewed and cleared at a later time
(value will remain stored between engine cycles or trips).
What's Included In Your Kit?
Edge
52mm Gauge
52mm
Gauge
pod
Gauge Specifications
Power-supply voltage:
9v to 17v DC (12v vehicles only)
Current consumption:
+B line: MAX 120mA
IGN line: MAX 120mA
ILM line: MAX 2mA
JRP Edge 52mm Digital Gauge: Water Temperature/ Oil Pressure & Head Guard
1.5m power
200mm power
cable
link cable
Remote
Fluid Temp
button
Peak Icon
Warning Icon
Scale indicator
(Front)
(Optional)
Oil pressure
sensor
Probe
Water
Detect.
Remote button port
Coloured Sensor ports
Button
Power +
Link ports
U-bracket pillar
mount kit
Stand + double sticky
Felt strip spare
(Back)
Page 1 of 9

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Summary of Contents for JRP Edge Water Temp/ Low Coolant & Oil Press

  • Page 1 This product is designed to work with 12 Volt (v) vehicles only! This product will not operate on 6v or 24v systems. • Take care reading through this manual, if you’re not sure ask JRP via Email/ FB Messenger. For best results professional installation may be required for some components.
  • Page 2 So, 2024 brought on the development of detecting water and coolant fluids in the radiator system. This led us to specially develop a water detection sensor that will trigger an alarm on the JRP 3in1 gauge; even if it detects a momentary air pocket in the cooling system.
  • Page 3 2 terminals. Pressing the button breaks the continuity between the switch terminals. Press links for Australian retailers that stock this switch: Jaycar Listing Core Electronics listing. JRP Edge 52mm Digital Gauge: Water Temperature/ Oil Pressure & Head Guard Page 3 of 9...
  • Page 4 Alarms are a very important function to JRP Edge gauges, its important to read and understand this section well as some pretty sophisticated ideas have been condensed into a simple menu setup. This section is seriously worth the read! Alarm Events: Briefly mentioned in the “Display mode section,”...
  • Page 5 For easy sensor installations: Use the JRP 3in1 Radiator hose adapter kit. Please ensure that you purchase the correct size to suit your cooling system hose diameter. Radiator hoses are designed to work under pressure and will not stretch to incorrectly sized spout ends.
  • Page 6 Customers using these fluids can purchase an e85 sensor from JRP that can handle the nature of these fluids. (Oil Pressure sensor will fail if installed in cooling system, voiding your warranty).
  • Page 7 This is where you can set the Low coolant alarm, settings LOW COOLANT Temperature ► ► ► ► are: Off, 0Sec, 5Sec, 10Sec, 20Sec. ALARM Range JRP Edge 52mm Digital Gauge: Water Temperature/ Oil Pressure & Head Guard Page 7 of 9...
  • Page 8 This is where you can set the Low coolant alarm, settings LOW COOLANT Temperature ► ► ► ► are: Off, 0Sec, 5Sec, 10Sec, 20Sec. ALARM Range JRP Edge 52mm Digital Gauge: Water Temperature/ Oil Pressure & Head Guard Page 8 of 9...
  • Page 9 This is where you can set the Low coolant alarm, settings LOW COOLANT Temperature ► ► ► ► are: Off, 0Sec, 5Sec, 10Sec, 20Sec. ALARM Range JRP Edge 52mm Digital Gauge: Water Temperature/ Oil Pressure & Head Guard Page 9 of 9...