Thetford T-PF.P133 (Superseded to 50120) – Waste Holding Tank Level Sensor Kit for Tecma Silence Plus

Monitor your waste tank levels accurately with this genuine Thetford sensor kit. Designed for Tecma Silence Plus permanent toilets, this kit includes both mid-level and top-level sensors to ensure reliable tank monitoring and prevent overfilling.

Key Features & Benefits

• Genuine Thetford OEM replacement part
• Superseded part: T-PF.P133 → 50120
• Provides accurate waste holding tank level detection
• Includes both mid-level and top-edge (full) sensors
• Helps prevent tank overfill and system issues
• Pre-wired with connectors for easier installation

Compatibility

Designed for use with:

• Thetford Tecma Silence Plus Permanent Toilets (April 2006–Present)

(Confirm compatibility with your specific system before ordering.)

What’s Included

• (1) Mid-level tank sensor
• (1) Top-edge (full level) sensor
• Wiring and connectors

What This Part Does

• Monitors waste levels inside the holding tank
• Sends signals to the toilet control system or panel
• Alerts when the tank reaches mid and full levels
• Helps protect the system from overfilling and backflow issues

Common Problems This Fixes

• Incorrect or no tank level readings
• Tank showing empty when full (or vice versa)
• Warning lights not functioning properly
• Damaged or corroded sensors/wiring

Installation Notes

• Install sensors at designated tank locations (mid and top positions)
• Ensure proper wiring connection to control system
• Clean tank surface before mounting sensors
• Test system after installation for accurate readings

Frequently Asked Questions

Q: Is T-PF.P133 still available?
A: No, it has been replaced by Thetford part 50120, the current updated version.

Q: Does this include both sensors?
A: Yes, this kit includes both a mid-level sensor and a top-level (full) sensor.

Q: Will this work with all Tecma toilets?
A: It is specifically designed for Tecma Silence Plus systems and may not be compatible with other models.