Customization:
With a corrosion-resistant stainless steel sensor head, you can ensure long-lasting durability in humid refrigeration environments. ~30% more resistant to corrosion than traditional plastic sensors*
With a quick-connect red terminal, you can achieve hassle-free integration into Bosch/Siemens systems. Reduces setup time by 50% compared to manual wiring*
With a wide operating range of -40°C to 120°C, you can maintain precise temperature control across extreme conditions. Expands coverage by 30% over standard sensors*
Designed for household refrigerators, you can ensure optimal food preservation and energy efficiency in domestic settings. Perfectly calibrated for home use compared to industrial-grade sensors*
Certified to Bosch/Siemens quality standards, you can ensure compatibility and reliability for certified performance. Meets rigorous food-safe material and precision specifications*
The BOSCH SIEMENS Refrigerator NTC Sensor 61961 is a precision temperature monitoring component designed for household refrigeration systems. Built with durable materials and a compact design, it ensures reliable temperature control in environments ranging from freezers to refrigerators. Its flexible cable and standardized connector enable seamless integration into existing systems, while its NTC thermistor technology guarantees accuracy and stability.
Feature | Specification | Benefit |
---|---|---|
Material | Durable plastic housing, stainless steel sensor head | Corrosion resistance and long-term durability |
Temperature Range | -40°C to 120°C (-40°F to 248°F) | Wide coverage for extreme and standard environments |
Power Source | Electric (passive NTC thermistor) | Low power consumption, no external battery required |
Compatibility | Universal fit for Bosch/Siemens models | Easy replacement in existing systems |
Sensor Type | NTC thermistor | High accuracy and fast response time |
Adjustable parameters:
With its rugged design and precise NTC technology, this sensor ensures your refrigerator maintains optimal temperatures for food safety and energy efficiency. Ideal for homeowners needing a direct replacement or technicians upgrading legacy systems.
Parameter | Base Model | Advanced Model | Pro Model |
---|---|---|---|
Temperature Range | -20°C to 80°C | -40°C to 100°C | -40°C to 120°C |
Accuracy | ±1.5°C | ±0.8°C | ±0.3°C |
Response Time | 10 seconds | 5 seconds | 2 seconds |
Technical Breakthroughs:
Version Selection Guide:
Category | Usage Scenarios | Characteristics | Advantages | Disadvantages |
---|---|---|---|---|
Temperature Range | Commercial freezers, industrial cold storage | Industry: -20°C to 100°C (common household) Base: -40°C to 120°C (▲20°C expanded) Advanced: -50°C to 150°C (▲10°C lower, ▲30°C higher from Base) | Base: Suitable for commercial use; Advanced: Ideal for ultra-low/freezers (e.g., lab cryostats) | Advanced may require specialized installation (e.g., industrial-grade wiring) |
Accuracy | Medical refrigeration, food safety audits | Industry: ±2°C (ISO 9001) Base: ±1°C (▲1°C precision) Advanced: ±0.5°C (▲0.5°C from Base) | Base: Reduces food spoilage risks; Advanced: Ensures critical drug storage compliance | Advanced: Higher cost due to precision components (e.g., platinum RTD sensors) |
Response Time | Restaurant kitchens, lab environments | Industry: 30 seconds (typical) Base: 15 seconds (▲15s faster) Advanced: 10 seconds (▲5s faster) | Base: Prevents temperature spikes during door openings; Advanced: Instant alerts in critical systems | Advanced: Slightly higher power draw (5% increase) |
Material Durability | Chemical labs, marine refrigeration | Industry: Basic plastic (ASTM D638) Base: Corrosion-resistant composite (▲resists 50+ chemicals) Advanced: Stainless steel (▲ISO 3506 certified) | Base: Withstands mild acids; Advanced: Survives harsh marine/saline environments | Advanced: Heavier (20% bulkier), costlier (30% markup) |
Compatibility | Multi-brand systems, retrofit projects | Industry: Limited to single-brand systems Base: Bosch/Siemens (▲plug-and-play) Advanced: Universal (▲supports 10+ brands via adapters) | Base: Simplifies Bosch/Siemens upgrades; Advanced: Reduces downtime in mixed-brand facilities | Advanced: Requires optional adapters for legacy systems (extra cost) |
Power Consumption | Energy-sensitive commercial operations | Industry: 5W (standard) Base: 3W (▲40% savings) Advanced: 2W (▲1W savings from Base) | Base: Lowers utility bills in small businesses; Advanced: Meets EU energy efficiency mandates | Advanced: Slightly shorter lifespan (5 years vs. 7 years for Base) due to optimized components |
⭐⭐⭐⭐⭐ James Wilkins - Appliance Repair Technician
"I've replaced dozens of fridge sensors, and this BOSCH SIEMENS NTC Sensor 619691 stands out for its plug-and-play red connector and solid build. The stainless steel tip feels far more durable than generic replacements. Installed it in a 2018 Siemens KI81RAD30 without issues—temperature stabilized within minutes. For technicians, this is a reliable OEM-grade part that saves time and callbacks."Purchase Date: February 2025 | Usage Period: 4 months
⭐⭐⭐⭐⭐ Linda Patel - Homeowner, Refrigerator Upgrade
"My Bosch fridge was fluctuating in temperature, and after some research, I decided to try this NTC sensor. The installation took less than 10 minutes—just unplugged the old one and snapped this in. Since then, the freezer maintains a steady -18°C, and my ice cream no longer gets frosty! The -40°C to 120°C range gives me confidence it can handle any seasonal changes. Exactly what I needed."Purchase Date: November 2024 | Usage Period: 7 months
⭐⭐⭐⭐☆ Carlos Mendez - Café Owner, Berlin
"We use a Siemens commercial freezer for gelato storage, and precision matters. After switching to the Advanced Model of this NTC sensor, we noticed tighter temperature control—no more crystallization in our batches. The ±0.8°C accuracy is a game-changer. Only reason I’m not giving 5 stars is that the cable could be a bit longer for deeper units. Still, a solid upgrade over the original."Purchase Date: January 2025 | Usage Period: 5 months
⭐⭐⭐⭐⭐ Elena Volkov - Lab Facility Technician
"We retrofitted two pharmaceutical freezers with the Pro Model of this sensor, and the 2-second response time has been critical during defrost cycles. The ±0.3°C accuracy ensures our vaccine storage stays within compliance thresholds. It’s also held up well against frequent cleaning with alcohol-based disinfectants. For lab-grade applications, this is the only NTC sensor I’d trust."Purchase Date: April 2025 | Usage Period: 2 months
⭐⭐⭐⭐⭐ Daniel Reeves - DIY Appliance Upgrader
"I love upgrading my own appliances, and this sensor was surprisingly easy to install. No tools needed—just followed the guide, and the fridge recognized it immediately. The flexible cable routed neatly behind the evaporator panel. After calibration, my fridge runs quieter and more efficiently. Great build quality for the price. Will definitely buy again if needed."Purchase Date: September 2024 | Usage Period: 9 months
Average Rating: 4.8/5 ⭐ (89 Reviews)
Dr. Alan Foster - HVAC & Refrigeration Engineer
"The BOSCH SIEMENS NTC Sensor 619691 is a standout in its class, particularly due to its RTD-level accuracy at NTC pricing. The Pro Model’s 0.3°C tolerance makes it suitable not just for food safety, but also for medical and scientific cold storage. Its corrosion-resistant materials and wide operating range give it an edge over standard thermistors. I recommend it for any application where temperature stability is non-negotiable."
Maria Lopez - Certified Appliance Parts Consultant
"Among OEM-compatible sensors, this one consistently delivers. The quick-connect red terminal reduces installation errors, and the stainless steel sensor head resists moisture degradation better than plastic alternatives. For both homeowners and technicians, it’s a trustworthy replacement that matches factory specs—no guesswork required."
Posted: 2 days ago
"Ordered this after my freezer started thawing. Arrived fast, installed in under 5 minutes. Now it’s holding perfect temps. No more spoiled groceries!"
Posted: 1 week ago
"Used this on a Bosch KGN36XI3P—exact match. No calibration issues. Clients love that their fridges are stable again."
Posted: 3 weeks ago
"Installed in our prep fridge. Accuracy is excellent, though I wish the cable was shielded for high-interference environments. Still, very satisfied."
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