Innovative Electrical Systems — Built to last
Meters OLED Digital Monitors
M2 OLED Temperature Monitor
1841The M2 Organic LED Digital Monitor measures essential electrical
system parameters with adjustable alarms and an auto-dimming
display. The M2 Monitors include a MOSFET External Circuit Relay
(ECR) which can be used to control external circuits based on any
value measured by the M2.
- Auto-dimming, bright Organic LED display is easy to read
- 80dB alarm on all models
- Isolated 500mA MOSFET relay
- Includes external DC Shunt or AC Current Transformer when required
- Versatile external temperature monitoring
- Monitor up to 4 temperature sensors
- Temperatures range from -40°C to 120°C (-40°F to 250°F)
- Measures in Fahrenheit or Celsius
- ABYC compliant for engine exhaust
- Waterproof temperature sensors included
Frequently Asked Questions 
Instructions
M2 Firmware Upgrade
1830 
1832 
1833 
1836 
1837 
1838 
1839 
1841 
1842 
1850 | Specifications | |
|---|---|
| Meter | Temperature |
| Function | Monitors Temperature |
| Input Voltage | 7-70V DC  |
| Alarm/Relay Activation | High and Low Temperature |
| Display Size | 55mm x 28mm |
| Range | 0.3W-1.0W |
| Sensor Locations | up to 4 |
| Temperature Range | -40°C – 120°C (-40°F – 250°F) |
| Temp Sensor | 4 x PN 1821 |
| Weight | 4.00lb (1.81 kg) |
| Included | ||
|---|---|---|
| Qty | PN | Product |
| 2 | 1820 | Submersible Temperature Sensor |
| 2 | 1821 | High Temp Temperature Sensor |
| Optional Accessories | ||
|---|---|---|
 | Any Alarms | |
| Meets the following Regulatory Specifications |
|---|
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