NOVASTAR MTH310 is an IP65 waterproof temperature sensor for LED displays. It measures the ambient temperature around your screen and passes that reading to a NovaStar MFN300 multi-function card, which can then show the live temperature on the LED display. The sensor needs no external power supply and is supplied with a 5-metre cable.

Every NOVASTAR MTH310 we ship is 100% original, covered by a 2-year warranty and dispatched within 24 hours of receiving payment.
NOVASTAR MTH310 Key Features
- Waterproof IP65 probe, suitable for outdoor and semi-outdoor LED displays
- Connects to the MFN300 multi-function card, so it works with your existing NovaStar control system
- Temperature measurement range from -20 °C to +75 °C
- No external power supply required – the sensor is powered from the MFN300
- 5 m cable supplied, replaceable with a 25 m cable for larger screens
- Certified to EMC, RoHS and FCC
NOVASTAR MTH310 Technical Specifications
| Model | NOVASTAR MTH310 |
|---|---|
| Product type | Waterproof ambient temperature sensor for LED displays |
| Rated voltage | DC 5 V |
| Temperature measurement range | -20 °C to +75 °C |
| Operating temperature | -25 °C to +80 °C |
| Operating humidity | 0% RH to 99% RH, non-condensing |
| Ingress protection | IP65 waterproof |
| Cable length | 5 m supplied (25 m cable available) |
| External power supply | Not required |
| Compatible host card | NovaStar MFN300 multi-function card |
| Certifications | EMC, RoHS, FCC |
How the NOVASTAR MTH310 Connects to the MFN300
The MTH310 plugs into the sensor input of the NOVASTAR MFN300 LED display multi-function card. Mount the probe where you want to read the ambient temperature, connect the 4-pin cable to the MFN300, then configure the temperature display in NovaStar’s control software. Because the sensor draws its power from the MFN300, no separate power supply or extra wiring is required.
The standard cable is 5 m. Where the probe has to sit further from the card, the cable can be replaced with a 25 m version.

Typical Applications
- Outdoor and semi-outdoor LED billboards that display live ambient temperature
- LED screens in stadiums, plazas, shopping centres, bus stations and building facades
- Any NovaStar LED display already using an MFN300 multi-function card for environmental monitoring

NOVASTAR MTH310 FAQ
What is the NOVASTAR MTH310 used for?
The MTH310 is a waterproof temperature sensor that monitors ambient temperature so the reading can be shown on an LED display. It is an accessory for NovaStar LED control systems rather than a stand-alone thermometer.
Does the NOVASTAR MTH310 need an external power supply?
No. The MTH310 is powered through the MFN300 multi-function card, so no separate power supply is needed.
What temperature range does the MTH310 measure?
The measurement range is -20 °C to +75 °C. The sensor itself can operate in ambient conditions from -25 °C to +80 °C and 0% to 99% RH, non-condensing.
Is the NOVASTAR MTH310 waterproof?
Yes. The probe is rated IP65, which makes it suitable for outdoor and semi-outdoor LED display installations.
Which NovaStar card does the MTH310 work with?
The MTH310 connects to the NovaStar MFN300 multi-function card.
How long is the NOVASTAR MTH310 cable, and can it be extended?
A 5 m cable is supplied as standard. For longer runs the cable can be replaced with a 25 m cable.
Related NovaStar Products
- NOVASTAR MFN300 LED display Multi-function Card – the host card required by the MTH310
- NOVASTAR MCTRL300 LED Sending Box Controller
- Novastar CVT310 Ethernet Multi-mode Optic Fiber Converter
- All LED Control Card Accessories
NOVASTAR MTH310 Specification Download
NOVASTAR MTH310 Temperature Sensor Specification (PDF, V2.2.1)







