MC-303 PG2
Supplier item link
PG2 Magnetic Contact Slim Brown MC-303
Item no. 119905 · Teletec
378.45 NOK · VAT basis not confirmed
Open 119905 at Teletec ↗Troubleshooting – step by step
Battery replacement and checks — step by step
3 V CR2450 · GP / Panasonic / Duracell
For maintenance of an installed sensor with a matching label. Arrange maintenance with the system manager and monitoring station where applicable. New installation, relocation and enrollment are installer tasks.
- Insert a coin in the slot and twist as shown in figure 4. Leave the base and magnet attached to the door.

Original page with model figures. Select to enlarge. - Lift the battery with a flat screwdriver as shown in figure 9a. Use the indicated base support, not the circuit board.

Original page with model figures. Select to enlarge. - Insert the CR2450 at an angle with the positive side visible. Press it into place and clip the cover back onto the base.
- Open and close the door. Confirm the correct zone changes state and the cover tamper clears. Do not move the magnet to suppress a fault.
If the check fails: check the battery type, polarity and cover. Record the fault message and contact the installer. Do not delete the sensor or disable supervision as a workaround.
Door contact · PG2 / PowerG · Wireless link to panel

PowerG alone does not establish compatibility with your PM10 or IQ Panel. Check the exact model, frequency, panel and software.
Guides and documents
- Brochure English - MC-303 PG2 Brochure
- Data Sheet English - MC-303 PG2 Data Sheet
- Installation Guide English - MC-303 PG2 Installation Guide
- Video English - Visonic Product Highlight Video
Step-by-step maintenance is provided above. A dedicated model-specific troubleshooting video has not been verified.
Supply chain and compatibility
Help when the product does not work
Choose the symptom and check the model scope before following the steps. This is troubleshooting, not a list of confirmed product defects.
PowerMaster shows NOT READY
Applies to: PowerMaster-10 G2. PG2 accessories only when fitted to this panel; not PowerG+ or IQ Panel.
- Read the display and review open zones/faults as described in the user guide. Record the zone, room and full message.
- For an open door or window message, close it fully. Look to see whether the magnet and sensor are still in place.
- Check the display again. Battery, tamper or communication faults require the named sensor manual. Do not replace the panel battery because of a sensor fault.
- When the panel is ready, use normal arming. Do not bypass an unknown zone or force arm to remove the warning.
Check the result: The panel shows READY with no unresolved fault and normal control works.
Stop and get help: If the zone remains open or the fault concerns communication/tamper, contact support with the zone and sensor model.