Your needs, this model
Does it fit your priorities?
Can I use this old OXO unit for an oven roast and hear a target alert?
Yes. Its instructions describe oven monitoring, an approach warning and a final local alert with sound switched on.
Explore this need in the finder →Can I use the silicone-cord version under a broiler or on the grill?
No. Its own instructions explicitly say oven use only, excluding grills and broilers. A rating from the newer stainless-cord model must not be transferred.
Explore this need in the finder →Will it provide separate temperatures for two foods?
No. The documented unit has one cabled food probe and one measurement channel.
Explore this need in the finder →The older OXO model needs its own instructions
The OXO 1158800 Chef’s Digital Leave-In Thermometer is worth understanding on its own terms if you already have the silicone-cord version. It follows a single food probe while the display sits on the counter. Its buttons offer selected targets, an advance warning and a final alert, so you can keep an oven closed while watching one position in a roast.
The important limit is explicit: OXO's instructions for this version say oven use only, not a grill or broiler. Do not borrow the newer Chef’s Precision model's stainless-cord heat rating because the screens and menus look similar. If outdoor grilling is your main use, the exact probe assembly and permitted cooking arrangement should decide the comparison.
What it can do beside an oven
To use the documented arrangement, connect the food probe, select Fahrenheit or Celsius and set the temperature. You can enter a target manually instead of following a preset. The probe stays in the food and the cord travels outside to the display. This is useful for following a rise in temperature without opening the door for every reading.
The unit provides an approach warning within 10 degrees of the selected target and another alert when the target is reached. Sound can be switched off, with the screen still providing a visual indication. That is convenient if you want quiet operation, but a muted setting will not attract your attention from another room. Check the switch before relying on an audible signal.
A timer is not a second food channel
The separate timer can count up or down, which gives the display another job while cooking. It does not supply another temperature sensor. You still have one probe and one measured food location, even when both time and temperature appear on screen. Two different foods that need independent readings require another thermometer or a multi-probe system.
That also matters for a large cut. Following one point is useful for progress, but it does not prove that another area has the same temperature. A small spot-check thermometer can complement the leave-in probe when you need to check elsewhere. The CDN DT392 is an example of that separate checking approach, rather than a replacement for continuous monitoring.
Keep the cable limit separate from the measuring range
The original sheet gives a 32°F–482°F food-reading range and a 482°F silicone-cord rating. These statements do not make the display safe at oven temperatures, and a cord-only number is not a reason to ignore the oven-only instruction. Keep the display outside and route the cable so the closing door cannot cut or crush it.
When comparing a replacement or used kit, inspect which cord and probe belong to the actual model. A newer product photograph should not be used to identify an older accessory by resemblance alone. If you need the current stainless-cord arrangement, compare the exact OXO 11231300 rather than treating the names as interchangeable.
Cleaning and storage affect the next reading
OXO instructs handwashing the probe and cord while keeping the jack dry, and wiping the display with a damp cloth. Dry the components before putting the probe into its storage hole and wrapping the cable around the base. Storing it neatly is useful only after food residue and moisture have been dealt with. Dishwasher cleaning is not the permitted routine.
The 1158800 uses two AAA batteries. If an older unit is returning to service, check the battery compartment, cable and connector before preparing the meal. Choose this documented version for a local, one-food oven routine within its instructions. For food targets and required rest times, consult current Food Safety.gov guidance rather than assuming every older preset is the right choice for the food in front of you.
Key details at a glance
| Documented leave-in monitoring | Yes |
|---|---|
| Included food probes | 1 |
| Fahrenheit display | Yes |
| Celsius display | Yes |
| Dishwasher-safe food probe | No |
| Measuring without batteries or charging | No |
| Documented food range minimum | 32°F |
| Documented food range maximum | 482°F |
| Power arrangement | TwoAAA batteries. |
| Care notes | Hand wash the probe and cord while keeping the jack dry; wipe the display with a damp cloth. Oven use only, excluding grills and broilers. |
Use the exact model’s instructions for operating limits, supplied equipment and version differences.
Sources for this assessment
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