Honeywell 00318A1 Window Thermometer -4 to 158F

Product Description

The HONEYWELL 00318A1 is a suction-mount window thermometer designed for both indoor and outdoor temperature monitoring. It attaches to glass surfaces using a strong suction cup and displays current temperature along with daily minimum and maximum readings. The temperature range spans -4 degrees F to 158 degrees F, making it suitable for a wide range of climate conditions. A low battery indicator alerts the user when the included CR2032 lithium coin cell battery needs replacement. The weather-resistant housing allows reliable performance on exterior-facing glass without degradation from moisture or UV exposure.

This thermometer is used in residential and light commercial settings where a simple, tool-free temperature display is needed at a window location. Common applications include HVAC service calls where a technician needs a quick ambient temperature reference, pool equipment enclosures, greenhouses, garages, and utility rooms. Installation requires no wiring, drilling, or special tools. The reversible suction cup mount allows placement on either the interior or exterior face of a window pane.

Key Features

• Temperature range: -4 degrees F to 158 degrees F
• Displays daily minimum and maximum temperatures
• Reversible suction cup mount for indoor or outdoor glass placement
• Weather-resistant exterior housing
• Low battery indicator with included CR2032 lithium battery
• No tools or wiring required for installation

Compatibility

Designed for suction-cup mounting on smooth glass surfaces in residential or light commercial applications where a self-contained, battery-powered thermometer is required.

Installation Notes

Clean the glass surface thoroughly before applying the suction cup to ensure a secure hold. Press the suction cup firmly against the glass and engage the locking lever if present. No electrical connection or low-voltage wiring is involved. Position the unit away from direct heat sources such as baseboard heaters or supply air registers to avoid skewed readings.

Technical Specifications

• Temperature Range: -4 degrees F to 158 degrees F
• Battery Type: CR2032 lithium coin cell (included)
• Height: 3.05 inches
• Width: 2 inches
• Depth: 1.5 inches
• Weight: 0.181 pounds
• Mounting Type: Reversible suction cup
• Color: Black
• Unit of Measure: Each

Standard Information

• Brand: HONEYWELL
• Manufacturer Part Number: 00318A1